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Видео добавленное пользователем “SciShow” за 2017
Why Do I Have Tonsil Stones?
 
02:23
If you found the whiteish-yellowish lump on your throat, that might be a tonsil stone. But where does the lump come from? Why do you have it? Hosted by: Michael Aranda Want more SciShow in person? We'll be at NerdCon: Nerdfighteria in Boston on February 25th and 26th! For more information, go to http://www.nerdconnerdfighteria.com/ ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Jeremy Peng, Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Scott Satovsky Jr, Will and Sonja Marple, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Saul, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.nytimes.com/2009/09/01/health/01tons.html https://www.ncbi.nlm.nih.gov/pubmed/17372553 http://www.sciencedirect.com/science/article/pii/S1286457906002280 http://scienceline.ucsb.edu/getkey.php?key=3273 http://www.livescience.com/26983-lymphatic-system.html http://medcell.med.yale.edu/histology/immune_system_lab/palatine_tonsil.php https://www.ncbi.nlm.nih.gov/pubmed/19716006 Image Sources: https://commons.wikimedia.org/wiki/File:Tonsillolith_in_mouth.jpg https://commons.wikimedia.org/wiki/File:Throat_with_Tonsils_0012J.jpeg
Просмотров: 1041540 SciShow
Why Do We Eat Raw Fish But Not Raw Chicken?
 
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We might order fish raw, but why don't we ever order chicken that way? Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Scott Satovsky Jr, Will and Sonja Marple, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://time.com/3731226/you-asked-why-cant-i-eat-raw-meat/ https://www.cdc.gov/parasites/anisakiasis/faqs.html http://www.fda.gov/downloads/Food/GuidanceRegulation/UCM252393.pdf https://www.ncbi.nlm.nih.gov/pubmed/19842365 http://www.nmfs.noaa.gov/aquaculture/faqs/faq_seafood_health.html https://www.cdc.gov/salmonella/general/ https://www.cdc.gov/foodsafety/diseases/campylobacter/index.html http://umash.umn.edu/wp-content/uploads/2015/11/Campylobacter-MDH.pdf https://medlineplus.gov/ency/article/000631.htm
Просмотров: 1010905 SciShow
Why Does Cold Brew Coffee Taste Better?
 
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Like it or hate it, cold brew coffee definitely tastes different than regular ol' drip, and it's all thanks to science. Hosted by: Hank Green Learn more about making coffee at youtube.com/learnhowtoadult ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin, Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.scaa.org/PDF/CoffeeBrewing-WettingHydrolysisExtractionRevisited.pdf http://legacy.sweetmarias.com/coffee_chemistry/tweaking_coffees_flavor_chem.html https://scienceandfooducla.wordpress.com/2014/08/19/coffee-brewing-chemistry-hot-brew-and-cold-brew/ http://www.bunn.com/sites/default/files/brochure/coffee_basics_scaa.pdf https://blog.intelligentsiacoffee.com/2017/01/17/extraction-theory-and-you/ https://www.beanscenemag.com.au/articles/view/socratic-coffee-explains-why-size-matters-part-iv http://cen.acs.org/articles/93/i33/Nitro-Cold-Brew.html http://theconversation.com/the-perfect-cup-of-coffee-boils-down-to-four-factors-30208
Просмотров: 331466 SciShow
What's the Deal with Warts?
 
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On today's Quick Question, we absolve the poor, humble toad of its wart-giving reputation. Learn about the virus that causes warts, how they spread, and what you can do to get rid of them. Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, D.A. Noe, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Nicholas Smith, Tim Curwick, Alexander Wadsworth, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.burkemuseum.org/blog/frog-myths http://www.mayoclinic.org/diseases-conditions/common-warts/basics/definition/con-20021715 https://www.health.harvard.edu/diseases-and-conditions/how-to-get-rid-of-warts http://www.webmd.com/skin-problems-and-treatments/warts-faq-questions-answers#1 http://www.webmd.com/skin-problems-and-treatments/tc/warts-and-plantar-warts-topic-overview#1
Просмотров: 356271 SciShow
Why Does Skipping Coffee Give Me Headaches?
 
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I normally drink about ten cups of coffee per day but today I decided to cut back and haven't had any caffeine but now my head hurts and I don't know why do YOU know why!? Caffeine! : https://www.youtube.com/watch?v=Xl1XBJLfIDU Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.sciencedaily.com/releases/2009/05/090501162805.htm https://www.ncbi.nlm.nih.gov/pubmed/26677204 https://www.ncbi.nlm.nih.gov/pubmed/15448977 https://www.ncbi.nlm.nih.gov/pubmed/18625110 http://www.smithsonianmag.com/science-nature/this-is-how-your-brain-becomes-addicted-to-caffeine-26861037/ http://bonhamchemistry.com/wp-content/uploads/2012/01/Caffeine_and_Adenosine.pdf http://www.sciencedirect.com/science/article/pii/S0074774205630073 https://www.ncbi.nlm.nih.gov/books/NBK223808/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3437321/ https://www.ncbi.nlm.nih.gov/pubmed/1846425 http://www.apa.org/monitor/2008/04/caffeine.aspx Images: https://commons.wikimedia.org/wiki/File:Caffeine_(1)_3D_ball.png https://commons.wikimedia.org/wiki/File:Caffeine_and_adenosine.svg https://commons.wikimedia.org/wiki/File:Caffeine_and_adenosine.svg
Просмотров: 240793 SciShow
Thalidomide: The Chemistry Mistake That Killed Thousands of Babies
 
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On October 1, 1957, thalidomide was introduced as a new morning sickness cure. Everything seemed great until later the next year, when thousands of infants were born with severe birth defects. We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017 Hosted by: Stefan Chin ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: D.A. Noe, Nicholas Smith, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Bella Nash, Charles Southerland, Patrick D. Ashmore, Tim Curwick, charles george, Kevin Bealer, Philippe von Bergen, Chris Peters, Fatima Iqbal ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.ncbi.nlm.nih.gov/pubmed/15080764 https://link.springer.com/article/10.1023/A:1021008016719 http://connection.ebscohost.com/c/articles/17997789/untold-story-thalidomide-babies https://www.ncbi.nlm.nih.gov/pubmed/18031152 https://www.researchgate.net/publication/24400847_Chiral_Toxicology_It's_the_Same_ThingOnly_Different https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4112512/ ------ Images: https://en.wikipedia.org/wiki/Thalidomide#/media/File:NCP14053.jpg https://en.wikipedia.org/wiki/Thalidomide#/media/File:Thalidomide_enantiomers.svg
Просмотров: 574938 SciShow
How Do You Get Rid of a Canker Sore?
 
02:23
Do you suffer from canker sores? These little white balls of blinding pain can be annoying, but there is hope. Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.201.5865&rep=rep1&type=pdf http://www.merckmanuals.com/professional/dental-disorders/symptoms-of-dental-and-oral-disorders/recurrent-aphthous-stomatitis http://www.mayoclinic.org/diseases-conditions/canker-sore/basics/treatment/con-20021262 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4002348/ http://www.medscape.com/viewarticle/582101_2 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2710437/ https://cda-adc.ca/jcda/vol-75/issue-7/533.pdf https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3227248/
Просмотров: 976459 SciShow
Why Was the WannaCry Attack Such a Big Deal?
 
05:40
On Friday, May 12th, 2017, the ransomware program WannaCry started spreading to computers all over the world at an alarming rate. A couple days later, it was basically completely contained with very little damage done. So what happened? Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin, Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.cnet.com/news/wannacry-wannacrypt-uiwix-ransomware-everything-you-need-to-know/ http://www.npr.org/sections/thetwo-way/2017/05/15/528451534/wannacry-ransomware-what-we-know-monday https://www.cnet.com/news/ransomware-attack-cyberattack-malware/ https://www.symantec.com/connect/blogs/what-you-need-know-about-wannacry-ransomware https://technet.microsoft.com/en-us/library/hh831795(v=ws.11).aspx https://www.wired.com/2017/05/accidental-kill-switch-slowed-fridays-massive-ransomware-attack/ https://arstechnica.com/security/2017/05/fearing-shadow-brokers-leak-nsa-reported-critical-flaw-to-microsoft/ http://money.cnn.com/2017/05/16/technology/hospitals-vulnerable-wannacry-ransomware/ https://www.elliptic.co/wannacry/ https://www.ft.com/content/fa5ed73a-37e7-11e7-ac89-b01cc67cfeec http://www.bbc.com/news/world-europe-39907965 https://www.theverge.com/2017/5/14/15637888/authorities-wannacry-ransomware-attack-spread-150-countries https://www.wired.com/2017/05/wannacry-ransomware-hackers-made-real-amateur-mistakes/
Просмотров: 733910 SciShow
Do Fat Cells Ever Really Go Away?
 
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Okay- you lost weight, but what actually happened to those fat-storing cells? Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Bella Nash, Kevin Bealer, Mark Terrio-Cameron, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Will and Sonja Marple, Philippe von Bergen, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://science.howstuffworks.com/life/cellular-microscopic/fat-cell3.htm http://qz.com/654647/everything-you-need-to-know-about-fat-cells/ http://www.nature.com/news/2008/080505/full/news.2008.800.html http://news.yale.edu/2015/03/02/new-fat-cells-created-quickly-losing-them Image: https://commons.wikimedia.org/wiki/File%3AFat_triglyceride_shorthand_formula.PNG
Просмотров: 320125 SciShow
3 Surprising Things Matter Does Under Extreme Pressure
 
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To support SciShow and learn more about Brilliant, go to https://brilliant.org/scishow/ Things get weird under pressure. We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017 Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Inerri, D.A. Noe, Charles Southerland, Fatima Iqbal, سلطان الخليفي, Nicholas Smith, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.chemistryworld.com/news/controversial-metallic-hydrogen-claim-under-new-scrutiny-/2500534.article https://www.chemistryworld.com/news/has-metallic-hydrogen-been-discovered/2500516.article https://www.missionjuno.swri.edu/jupiter/the-interior?show=hs_jupiter_the-interior_story_a-dive-into-jupiter https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.116.255501 http://www.ph.ed.ac.uk/news/2016/probing-dark-hydrogen-giant-planets-16-06-23 http://www.csec.ed.ac.uk/research-highlights/squeezing-oil-and-water-until-they-mix http://advances.sciencemag.org/content/advances/3/8/e1700240.full.pdf https://carnegiescience.edu/news/metal-insulator-and-back-again https://www.chemistryworld.com/news/metals-lose-identity-under-pressure-/3002474.article https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.114.156403 http://www.nature.com/nature/journal/v458/n7235/abs/nature07827.html? http://hyperphysics.phy-astr.gsu.edu/hbase/Solids/band.html https://www.aocs.org/stay-informed/read-inform/featured-articles/emulsions-making-oil-and-water-mix-april-2014 http://www1.lsbu.ac.uk/water/supercritical_water.html https://www.space.com/35606-helium-compounds-giant-planet-interiors.html https://arxiv.org/pdf/1309.3827.pdf https://www.sciencenews.org/article/heliums-inertness-defied-high-pressure-compound https://www.forbes.com/sites/carmendrahl/2017/02/07/helium-sodium-compound-pressure/ http://pubs.acs.org/doi/abs/10.1021/ja00877a042 https://www.scientificamerican.com/article/saturn-s-core-might-be-cloaked-in-a-neon-shield/ http://www.pnas.org/content/112/26/7925.full.pdf https://www.nature.com/articles/srep34896 http://www.nature.com/nature/journal/v406/n6798/abs/406874a0.html https://solarsystem.nasa.gov/galleries/juno-how-do-jupiter-and-earth-compare Images: https://commons.wikimedia.org/wiki/File:Diamond_Anvil_Cell_-_Cross_Section.svg https://commons.wikimedia.org/wiki/File:Methane-CRC-MW-3D-balls.png https://commons.wikimedia.org/wiki/File:Titan_multi_spectral_overlay.jpg https://commons.wikimedia.org/wiki/File:Triton_moon_mosaic_Voyager_2_(large).jpg https://en.wikipedia.org/wiki/File:Jupiter_and_its_shrunken_Great_Red_Spot.jpg
Просмотров: 730205 SciShow
Can You Learn Perfect Pitch?
 
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Some people can identify a pitch without even looking at sheet music. Is it something they're born with or can it be learned? Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin, Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.sciencedirect.com/science/article/pii/S0010027715000621 https://www.researchgate.net/publication/41194498_Learning_the_Special_Note_Evidence_for_a_Critical_Period_for_Absolute_Pitch_Acquisition https://www.sciencedaily.com/releases/2015/05/150528123917.htm https://news.uchicago.edu/article/2015/05/28/acquiring-perfect-pitch-may-be-possible-some-adults https://www.ncbi.nlm.nih.gov/books/NBK11007/ http://www.apa.org/monitor/feb05/pitch.aspx http://asa.scitation.org/doi/10.1121/1.4808626 ---------- Images: https://commons.wikimedia.org/wiki/File:Mozart-small.jpg https://commons.wikimedia.org/wiki/File:Hands-music-musician-piano_(23958938169).jpg
Просмотров: 282990 SciShow
Can Danger Give You Super Strength?
 
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SciShow is nominated for a Webby! Vote for us! https://vote.webbyawards.com/PublicVoting#/2017/film-video/video-channels-and-networks/science-education-channels-and-networks Have you ever heard that you become more powerful in life-or-death situations? There are a lot of anecdotes about super strength, but is it a real thing? Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.scientificamerican.com/article/extreme-fear-superhuman/ http://www.bbc.com/future/story/20160501-how-its-possible-for-an-ordinary-person-to-lift-a-car https://www1.udel.edu/chem/C465/senior/fall00/Performance1/epinephrine.htm.html https://www.unm.edu/~lkravitz/Article%20folder/stresscortisol.html https://www.psychologytoday.com/blog/extreme-fear/200912/superhuman-no-just-very-scared http://www.salisbury.edu/sportsperformance/Articles/INTENSITY%20OF%20STRENGTH%20TRAINING%20FACTS%20AND%20FALLACIES%20-%20ZATZIORSKY.pdf https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3073528/ Image Sources: https://commons.wikimedia.org/wiki/Category:Cortisol#/media/File:Cortisol-2D-skeletal.png https://commons.wikimedia.org/wiki/File:Epinephrine.png
Просмотров: 328671 SciShow
How Does Icing an Injury Help?
 
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SciShow is nominated for a Webby! Vote for us! https://vote.webbyawards.com/PublicVoting#/2017/film-video/video-channels-and-networks/science-education-channels-and-networks Since your body is already pretty good at healing itself, does icing an injury actually help? Hosted by: Hank Green Why Are Paper Cuts So Painful: https://www.youtube.com/watch?v=sK4b-m00OlQ ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://emj.bmj.com.proxy.libraries.rutgers.edu/content/25/2/65.full http://journals.sagepub.com/doi/pdf/10.1177/0363546503260757 http://www.webmd.com/arthritis/about-inflammation#2 http://www.sportsinjurybulletin.com/archive/1066-cryotherapy.htm# http://emj.bmj.com.proxy.libraries.rutgers.edu/content/25/2/65.full#ref-20 http://www.sportsinjurybulletin.com/archive/1066-cryotherapy.htm# http://bjsm.bmj.com/content/41/6/365 http://www.nature.com/articles/srep18525 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2290674/
Просмотров: 271120 SciShow
The Strongest Bases in the World
 
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Acids are widely considered to be the scariest chemical compounds of all, but bases can be just as powerful. Most powerful of all are a special class of pH scale-defying bases called superbases! Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Scott Satovsky Jr, Will and Sonja Marple, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.chemistryexplained.com/Ru-Sp/Soap.html http://www.classzone.com/vpg_ebooks/ml_sci_gr8/accessibility/ml_sci_gr8/page_324.pdf http://pubs.rsc.org/en/content/articlehtml/2016/sc/c6sc01726f http://chemistry.anu.edu.au/news-events/basically-record-breaking http://media.uow.edu.au/news/UOW219367.html http://pubs.rsc.org/en/Content/ArticleLanding/2016/SC/C6SC01726F#!divAbstract http://www.bioworldusa.com/ph/household-bleach# http://www.softschools.com/formulas/chemistry/sodium_hydride_uses_properties_structure_formula/248/ http://rushim.ru/books/mechanizms/superbases-for-organic-synthesis.pdf http://www.chemistryviews.org/details/ezine/8095451/The_Strongest_Superbases.html http://fileserver.net-texts.com/asset.aspx?dl=no&id=155824 http://www.ks.uiuc.edu/Training/SumSchool/materials/sources/tutorials/05-qm-tutorial/part2.html
Просмотров: 1164569 SciShow
Why Do Some People Tolerate Spicy Food?
 
02:50
Some people can eat raw jalapeños like they're apples. Why do some people have a high tolerance for spicy food while others can't stand it? Hosted by:Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.sciencedirect.com/science/article/pii/S0950329312001917 http://www.popsci.com/science/article/2013-06/fyi-are-people-born-tolerance-spicy-food http://www.pbs.org/wgbh/nova/body/reed-taste.html https://books.google.com/books?hl=en&lr=&id=vvalCgAAQBAJ&oi=fnd&pg=PA77 book https://academic.oup.com/chemse/article-abstract/6/1/23/277878/The-role-of-desensitization-to-capsaicin-in-chili https://www.ncbi.nlm.nih.gov/pubmed/9035246 Image Sources: https://ja.wikipedia.org/wiki/%E3%82%AB%E3%83%97%E3%82%B5%E3%82%A4%E3%82%B7%E3%83%B3#/media/File:Capsaicin-3D-vdW.png
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How Can It Be Too Hot To Fly?
 
03:03
How does heat affect airplanes? Turns out heat, speed and density connect to create dangerous situations. Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, D.A. Noe, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Nicholas Smith, Tim Curwick, Alexander Wadsworth, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.nytimes.com/2017/06/20/business/flying-climate-change.html https://www.wired.com/story/phoenix-flights-canceled-heat/ https://www.grc.nasa.gov/www/k-12/airplane/newton3.html https://www.youtube.com/watch?v=aFO4PBolwFg http://www.telegraph.co.uk/travel/travel-truths/why-planes-too-hot-to-fly-heat-aircraft/ https://aviation.stackexchange.com/questions/1531/does-temperature-affect-takeoff-performance http://www.telegraph.co.uk/news/science/science-news/9035708/Cambridge-scientist-debunks-flying-myth.html http://iopscience.iop.org/article/10.1088/0031-9120/38/6/001/pdf https://www.flydenver.com/about/press_kit/runways_airfield Images: https://commons.wikimedia.org/wiki/File:Phoenix_(4270737598).jpg https://commons.wikimedia.org/wiki/File:Runway_8_26_markings,_DEN.jpg https://commons.wikimedia.org/wiki/File:DEN_airport_jpg.jpg
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What Makes Your Hair Curl?
 
02:30
We all have really different looking locks but what actually make our hair straight or curly? Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Jeremy Peng, Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Scott Satovsky Jr, Will and Sonja Marple, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Saul, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.popsci.com/science/article/2012-11/fyi-what-maks-hair-curly https://www.ncbi.nlm.nih.gov/pubmed/17919197 http://onlinelibrary.wiley.com/doi/10.1111/j.1365-4632.2007.03453.x/abstract http://www.telegraph.co.uk/news/science/science-news/6751910/Curly-hair-gene-discovered-by-scientists.html https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2775823/ http://www.nature.com/articles/ncomms10815 http://wonderopolis.org/wonder/how-does-heat-both-straighten-and-curl-hair https://www.scienceabc.com/innovation/what-is-the-science-behind-hair-straightenerscurlers.html http://www.smithsonianmag.com/science-nature/why-humidity-makes-your-hair-curl-21127724/ http://www.yalescientific.org/2010/04/everyday-qa-how-does-a-perm-work/ Images: https://commons.wikimedia.org/wiki/File%3AHierarchical_structure_of_hair_in_the_cortex_and_cuticle.png https://commons.wikimedia.org/wiki/File%3ACurling_iron_CISC-W2W32_by_Create_Co.%2C_Ltd._(2015-09-20).JPG
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What Neanderthal DNA Is Doing To Your Genome
 
04:18
Scientists estimate that about 2% of our DNA is from Neanderthals. In this week, the journal Cell showed what those Neanderthal DNA do to our genome. Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Scott Satovsky Jr, Will and Sonja Marple, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.eurekalert.org/emb_releases/2017-02/cp-ndc021617.php http://www.cell.com/cell/fulltext/S0092-8674(17)30128-9
Просмотров: 409812 SciShow
What Happens If You Don't Take out a Splinter?
 
03:06
Splinters are gross, but you might want to watch this before grabbing the tweezers. Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.aafp.org/afp/2003/0615/p2557.html#afp20030615p2557-b14 http://www.cofirstaid.org/files/splinter-removal.pdf http://www.aafp.org/afp/2007/0901/p683.html http://www.the-dermatologist.com/content/treating-rare-fungal-infections-sporotrichosis https://www.cdc.gov/tetanus/about/causes-transmission.html https://www.hindawi.com/journals/crior/2012/439836/ http://woundcaresociety.org/why-does-rusty-metal-cause-tetanus https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4082545/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2032357/?page=9,
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Why do we Have Earwax?
 
02:46
No Judging: At one point you've probably put a finger in your ear and dug out some rather unsightly ear wax, but why does your body produce this yellowy substance in the first place? Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—Alexander Wadsworth, Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.britannica.com/demystified/why-do-we-have-earwax http://www.nature.com/ng/journal/v38/n3/abs/ng1733.html https://medlineplus.gov/ency/article/000979.htm https://academic.oup.com/qjmed/article/97/8/477/1588624/Impacted-cerumen-composition-production http://commonhealth.legacy.wbur.org/2012/11/q-tips-ears-danger http://www.entnet.org/content/earwax-and-care https://www.ncbi.nlm.nih.gov/pubmed/16835926 http://onlinelibrary.wiley.com/doi/10.1002/ar.a.20356/full http://europepmc.org/abstract/med/1870171
Просмотров: 241183 SciShow
How a Sick Chimp Led to a Global Pandemic: The Rise of HIV
 
10:20
In the first video in our two part series on HIV and AIDS, we explain how scientists figured out what HIV is, when the infection morphs into AIDS, and where they think the virus originated. We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017 Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: KSam Lutfi, Kevin Knupp, Nicholas Smith, Inerri, D.A. Noe, alexander wadsworth, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Bella Nash, Charles Southerland, Bader AlGhamdi, James Harshaw, Patrick Merrithew, Patrick D. Ashmore, Candy, Tim Curwick, charles george, Saul, Mark Terrio-Cameron, Viraansh Bhanushali, Kevin Bealer, Philippe von Bergen, Chris Peters, Fatima Iqbal, Justin Lentz ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.avert.org/professionals/history-hiv-aids/overview https://aidsinfo.nih.gov/ https://www.hiv.gov/hiv-basics/overview/about-hiv-and-aids/what-are-hiv-and-aids https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3119211/ https://www.hiv.gov/hiv-basics/overview/history/hiv-and-aids-timeline https://hab.hrsa.gov/livinghistory/issues/Gay-Men.pdf https://www.cdc.gov/mmwr/preview/mmwrhtml/june_5.htm http://img.thebody.com/cdc/pdfs/mmwr04jul81.pdf http://science.sciencemag.org/content/224/4648/500 https://www. hingtonpost.com/news/to-your-health/wp/2015/02/24/tracing-the-long-convoluted-history-of-the-aids-epidemic\ http://www.iflscience.com/health-and-medicine/where-did-hiv-come/ http://www.stat.wisc.edu/~larget/Genetics629/hiv.pdf https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3234451/ http://www.who.int/gho/hiv/en/ https://www.cdc.gov/mmwr/preview/mmwrhtml/su6004a11.htm http://www.aidsmap.com/Saliva/page/1322841/ https://www.ncbi.nlm.nih.gov/pubmed/9989543 http://www.usp.br/nepaidsabia/images/BIBLIOTECA/_MIGRAR/oralhivtrans.pdf https://www.cdc.gov/mmwr/preview/mmwrhtml/00001257.htm https://www.nobelprize.org/nobel_prizes/medicine/laureates/2008/press.html https://www.hiv.lanl.gov/content/sequence/HelpDocs/subtypes-more.html http://www.the-scientist.com/?articles.view/articleNo/47352/title/HIV-Spread-from-Haiti-to-NYC-in-1970---Patient-Zero--Not-to-Blame/ http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0025956 https://retrovirology.biomedcentral.com/articles/10.1186/1742-4690-6-49 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC393899/ http://bedford.io/pdfs/papers/faria-hiv-spread.pdf ---------- Images: https://commons.wikimedia.org/wiki/File:Aids_Quilt.jpg https://commons.wikimedia.org/wiki/File:Hiv_gross.png https://en.wikipedia.org/wiki/T_cell#/media/File:Healthy_Human_T_Cell.jpg https://commons.wikimedia.org/wiki/File:Pneumocystisjiroveci.jpg https://en.wikipedia.org/wiki/Pneumocystis_pneumonia#/media/File:PCPxray.jpg
Просмотров: 1343986 SciShow
What Causes Runner's High?
 
02:56
After a good distance of running, you might have felt a sensation of happiness. That is the runner's high and some chemicals in your body cause it. Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shoutout to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.pnas.org/content/112/42/13105.full http://jeb.biologists.org/content/215/8/1331?sid%3D739917de-aaf2-469d-9f3a-ab04329720b7= http://www.sciencedirect.com/science/article/pii/S0306453011002873 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3104618/ Image Sources: https://commons.wikimedia.org/wiki/File:Anandamide_skeletal.svg https://commons.wikimedia.org/wiki/File:Beta-endorphin_1-9.png
Просмотров: 413084 SciShow
Why Does Humidity Make It Feel Hotter?
 
03:11
It turns out there's a scientific explanation behind the saying, "It's not the heat, it's the humidity!" Learn why a hot and humid day feels so dismal and some tips to avoid the really sweaty, gross days on today's Quick Question! Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—Alexander Wadsworth, Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://media.bom.gov.au/social/blog/1324/feeling-hot-and-bothered-its-not-the-humidity-its-the-dew-point/ http://www.bbc.co.uk/schools/gcsebitesize/science/edexcel/responses_to_environment/homeostasisrev3.shtml http://www.weather.gov/arx/why_dewpoint_vs_humidity https://www.atmos.umd.edu/~stevenb/vapor/ http://hyperphysics.phy-astr.gsu.edu/hbase/Kinetic/relhum.html http://www.dpcalc.org/
Просмотров: 398438 SciShow
How Often Do You Really Need to Shower?
 
02:40
Do you really need a daily shower to stay clean, or is it doing more harm than good? Some scientists have recommendations based on what we know about our skin — and what might be living on top of it. We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017 Hosted by: Stefan Chin ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Inerri, D.A. Noe, Charles Southerland, Fatima Iqbal, سلطان الخليفي, Nicholas Smith, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.npr.org/sections/health-shots/2015/01/12/375663920/the-doctor-who-championed-hand-washing-and-saved-women-s-lives http://www.npr.org/sections/health-shots/2015/03/31/396573607/meet-the-bacteria-that-make-a-stink-in-your-pits https://microbiomejournal.biomedcentral.com/articles/10.1186/s40168-017-0294-2 http://annals.org/aim/article/717252/effect-antibacterial-home-cleaning-handwashing-products-infectious-disease-symptoms-randomized http://time.com/4259559/shower-soap-hygiene/?xid=tcoshare https://www.northernorthopedics.com/patient-resources/a-patient-s-guide-to-surgery/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3535073/
Просмотров: 611771 SciShow
What Happens If You Drink a Glass of Heavy Water?
 
04:21
Sign up for Brilliant for free at https://brilliant.org/scishow/ Heavy water, or deuterium oxide, has some important scientific applications, but let's say you're reeeeaallly thirsty... is it safe to drink? We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017 Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: D.A. Noe, Nicholas Smith, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Bella Nash, Charles Southerland, Patrick D. Ashmore, Tim Curwick, charles george, Kevin Bealer, Philippe von Bergen, Chris Peters, Fatima Iqbal ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://pubs.acs.org/doi/abs/10.1021/cr50004a004 https://pubchem.ncbi.nlm.nih.gov/compound/deuterium_oxide http://www.clinsci.org/content/ppclinsci/80/4/277.full.pdf https://books.google.com/books?id=VbO2CwAAQBAJ&pg=PA135 http://shop.isotope.com/productdetails.aspx?itemno=DLM-6-PK http://pubs.acs.org/stoken/presspac/presspac/full/10.1021/ie101820f http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0169296 https://www.nrc.gov/reading-rm/doc-collections/fact-sheets/tritium-radiation-fs.html http://ajplegacy.physiology.org/content/201/2/357 https://www.scientificamerican.com/article/is-radioactive-hydrogen-in-drinking-water-a-cancer-threat/ http://rgw.arizona.edu/sites/researchgateway/files/radioactive_material_protection_reference_guide.pdf
Просмотров: 975628 SciShow
Why Do Workout Drinks Make My Skin Tingle?
 
02:53
Ever get a tingling sensation while getting your sweat on? The ingredients to your drink may be why. Hosted by: Hank Green ---------- Learn more about the March for Science: https://www.marchforscience.com/ Knowledge Is Power Merch: https://store.dftba.com/collections/scishow Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.livescience.com/53095-do-preworkout-supplements-work.html https://www.ninds.nih.gov/Disorders/All-Disorders/Paresthesia-Information-Page https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3374095/pdf/726_2011_Article_1200.pdf https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4501114/pdf/12970_2015_Article_90.pdf https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3491570/pdf/nihms416104.pdf http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.520.4471&rep=rep1&type=pdf http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.287.7624&rep=rep1&type=pdf
Просмотров: 164592 SciShow
Why's a Meter a Meter?
 
04:45
Meter is the standard unit of length used by most countries around the world. But how did they define it? Hosted by: Hank Green Want more SciShow in person? We'll be at NerdCon: Nerdfighteria in Boston on February 25th and 26th! For more information, go to http://www.nerdconnerdfighteria.com/ ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Scott Satovsky Jr, Will and Sonja Marple, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.nist.gov/sites/default/files/documents/pml/div683/museum-timeline.pdf http://www.surveyhistory.org/the_standard_meter1.htm http://physics.nist.gov/cuu/Units/meter.html http://www.npl.co.uk/educate-explore/factsheets/history-of-length-measurement/ https://www.nist.gov/sites/default/files/documents/pml/div684/fcdc/sp330-2.pdf http://www.us-metric.org/origin-of-the-metric-system/ https://nature.berkeley.edu/classes/eps2/wisc/pt.html Image Sources: https://commons.wikimedia.org/wiki/File:Kilometre_definition.svg https://commons.wikimedia.org/wiki/File:Platinum-Iridium_meter_bar.jpg
Просмотров: 486629 SciShow
Do Glasses Ruin Your Eyesight?
 
03:19
Hank brings the answer into focus. Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.aao.org/eye-health/tips-prevention/five-vision-myths http://www.aoa.org/patients-and-public/eye-and-vision-problems/glossary-of-eye-and-vision-conditions/myopia?sso=y http://www.bbc.com/future/story/20140513-do-glasses-weaken-your-eyesight https://www.ncbi.nlm.nih.gov/pubmed/9243655 https://www.ncbi.nlm.nih.gov/pubmed/12445849 https://www.ncbi.nlm.nih.gov/pubmed/24674576 https://www.newscientist.com/article/dn3082-eye-correction-is-seriously-short-sighted/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4087177/ http://www.mayoclinic.org/diseases-conditions/eyestrain/basics/treatment/con-20032649 http://hyperphysics.phy-astr.gsu.edu/hbase/vision/eyedef.html#c1
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Why Did The FDA Ban Antibacterial Soap?
 
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Are you a bit of a germaphobe? Maybe think twice about using antibacterial soap. Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Scott Satovsky Jr, Will and Sonja Marple, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm517478.htm http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm378542.htm https://www.federalregister.gov/documents/2016/09/06/2016-21337/safety-and-effectiveness-of-consumer-antiseptics-topical-antimicrobial-drug-products-for https://www.ncbi.nlm.nih.gov/pubmed/16922622 http://www.jbc.org/content/274/16/11110.full http://www.sciencedirect.com/science/article/pii/S0195670102912028?via%3Dihub https://www.ncbi.nlm.nih.gov/pmc/articles/PMC478530/ https://academic.oup.com/cid/article-lookup/doi/10.1086/519255 http://www.tandfonline.com/doi/abs/10.1080/10739149.2013.803777 http://www.sciencedirect.com/science/article/pii/S0304415700000137 http://www.sciencedirect.com/science/article/pii/S0166445X10003292 http://www.sciencedirect.com/science/article/pii/S0269749109001833 https://www.ncbi.nlm.nih.gov/pubmed/20562219 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3572338/ https://academic.oup.com/toxsci/article/107/1/56/1664314/The-Effects-of-Triclosan-on-Puberty-and-Thyroid
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The Bone Wars: A Feud That Rocked U.S. Paleontology
 
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The Bone Wars resulted in the description of some of the most famous dinosaurs we know of today, but not without some pretty big mistakes. We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017 Hosted by: Stefan Chin ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: KSam Lutfi, Kevin Knupp, Nicholas Smith, Inerri, D.A. Noe, alexander wadsworth, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Bella Nash, Charles Southerland, Bader AlGhamdi, James Harshaw, Patrick Merrithew, Patrick D. Ashmore, Candy, Tim Curwick, charles george, Saul, Mark Terrio-Cameron, Viraansh Bhanushali, Kevin Bealer, Philippe von Bergen, Chris Peters, Fatima Iqbal, Justin Lentz ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://books.google.ie/books?id=Z8Tj2HvfHRwC&pg=PA153&redir_esc=y#v=onepage&q&f=false http://phenomena.nationalgeographic.com/2015/04/15/battle-for-the-bone-wars-beasts/ http://www.ansp.org/explore/online-exhibits/stories/bone-wars-the-cope-marsh-rivalry/ http://www.ucmp.berkeley.edu/history/marsh.html http://oceansofkansas.com/Leidy1870.html http://oceansofkansas.com/NYHerald.html http://oceansofkansas.com/tale-tail.html https://www.geol.umd.edu/~tholtz/G104/lectures/104hist.html http://academic.brooklyn.cuny.edu/geology/chamber/Buckland1.html http://www.archives.upenn.edu/people/1800s/leidy_joseph.html http://dla.library.upenn.edu/dla/pacscl/ead.html?id=PACSCL_ANSP_ANSPColl328 https://www.wired.com/2011/08/o-c-marsh-before-the-bone-wars/ http://www.nytimes.com/books/99/11/07/reviews/991107.07wilfort.html https://www.smithsonianmag.com/science-nature/when-triceratops-was-a-giant-bison-179449725/ https://www.smithsonianmag.com/science-nature/the-myth-of-the-eight-spiked-stegosaurus-165459353/ http://www.npr.org/2012/12/09/166665795/forget-extinct-the-brontosaurus-never-even-existed Images: https://commons.wikimedia.org/wiki/File:Othniel_Charles_Marsh_-_Brady-Handy.jpg https://commons.wikimedia.org/wiki/File:Cope_Edward_Drinker_1840-1897.jpg https://commons.wikimedia.org/wiki/File:William_Buckland_c1845.jpg https://commons.wikimedia.org/wiki/File:Buckland,_Megalosaurus_jaw.jpg https://commons.wikimedia.org/wiki/File:Hadrosaurus_foulkii_vertebrae.jpg https://commons.wikimedia.org/wiki/File:Joseph_Leidy_by_Gilbert_Studios_c1870.jpg https://commons.wikimedia.org/wiki/File:OCmarsh.jpg https://commons.wikimedia.org/wiki/File:Cope_Elasmosaurus.jpg https://commons.wikimedia.org/wiki/File:Como_Bluff.jpg https://commons.wikimedia.org/wiki/Category:Othniel_Charles_Marsh#/media/File:Triceratopsskull.jpg
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How Smart Are Animals, Really?
 
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Measuring 'intellect' is a difficult task. Check out one way scientists are attempting to make this endeavor more testable. Hosted by: Hank Green SciShow is nominated for a Webby! Vote for us! https://vote.webbyawards.com/PublicVoting#/2017/film-video/video-channels-and-networks/science-education-channels-and-networks Hosted by: ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://phenomena.nationalgeographic.com/2014/04/22/this-is-how-you-study-the-evolution-of-animal-intelligence/ http://www.pnas.org/content/111/20/E2140 https://www.theatlantic.com/education/archive/2015/02/what-animals-teach-us-about-measuring-intelligence/386330/ http://www.slate.com/articles/health_and_science/science/2014/04/cat_intelligence_and_cognition_are_cats_smarter_than_dogs.html https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3207484/ http://www.neaq.org/blog/octopus-box/
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Do Those Glasses Really Fix Colorblindness?
 
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You've seen those viral videos of colorblind people putting on special glasses and reacting to colors they've never seen before! Today, we'll explore how colorblindness works and what those glasses try to do to fix it! Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, D.A. Noe, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Nicholas Smith, Tim Curwick, Alexander Wadsworth, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://nei.nih.gov/health/color_blindness/facts_about http://cen.acs.org/articles/95/i6/Experimenting-EnChromas-color-blind-assistance.html http://www.smithsonianmag.com/innovation/scientist-accidentally-developed-sunglasses-that-could-correct-color-blindness-180954456/?no-ist https://pogue.blogs.nytimes.com/2013/08/15/glasses-that-solve-colorblindness-for-a-big-price-tag/?_r=1 https://www.ncbi.nlm.nih.gov/pubmed/6971497 www.dtic.mil/get-tr-doc/pdf?AD=ADA093031 http://faculty.washington.edu/sbuck/545ColorClass/Sharpe%26Jagle.2001.pdf http://www.sciencedirect.com/science/article/pii/S003962578180001X http://faculty.washington.edu/sbuck/545ColorClass/Sharpe%26Jagle.2001.pdf https://www.microsoft.com/en-us/garage/profiles/color-binoculars/ Images: https://commons.wikimedia.org/wiki/File:Cone-fundamentals-with-srgb-spectrum.svg https://commons.wikimedia.org/wiki/File:%D0%92%D0%B5%D1%87%D1%96%D1%80_%D0%BD%D0%B0_%22%D1%96%D0%BD%D1%82%D0%B5%D0%B3%D1%80%D0%B0%D0%BB%D1%96%22_-_%D1%80%D1%96%D1%87%D0%BA%D0%B0_%D0%9F%D1%96%D0%B2%D0%B4%D0%B5%D0%BD%D0%BD%D0%B8%D0%B9_%D0%91%D1%83%D0%B3.jpg https://commons.wikimedia.org/wiki/File:Deuteranopia_sight.jpg https://commons.wikimedia.org/wiki/File:Ishihara_9.png
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Do Epsom Salt Baths Do Anything?
 
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You come home from an intense workout, muscles aching, and lower yourself into a warm epsom salt bath from some sweet relief. But are all those extra minerals really helping soothe your pain? Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: D.A. Noe, Nicholas Smith, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Bella Nash, Charles Southerland, Patrick D. Ashmore, Tim Curwick, charles george, Kevin Bealer, Philippe von Bergen, Chris Peters, Fatima Iqbal ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.webmd.com/a-to-z-guides/epsom-salt-bath#1 https://www.painscience.com/articles/epsom-salts.php http://abcnews.go.com/Health/truth-epsom-salt/story?id=29675918 http://www.rd.com/health/wellness/does-epsom-salt-work/ http://www.exploringsurreyspast.org.uk/themes/places/surrey/epsom_and_ewell/epsom/ https://medlineplus.gov/ency/article/002423.htm https://bmcpregnancychildbirth.biomedcentral.com/articles/10.1186/1471-2393-13-34 http://www.epsomsaltcouncil.org/wp-content/uploads/2015/10/report_on_absorption_of_magnesium_sulfate.pdf
Просмотров: 443362 SciShow
Did Scientists Really Make Metallic Hydrogen?
 
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The Researchers reconstructed the face of the organism which might be one of our earliest ancestors. Meanwhile, two researchers from Harvard announced that they have created solid metallic hydrogen. Hosted by: Hank Green Want more SciShow in person? We'll be at NerdCon: Nerdfighteria in Boston on February 25th and 26th! For more information, go to http://www.nerdconnerdfighteria.com/ ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Scott Satovsky Jr, Will and Sonja Marple, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://nature.com/articles/doi:10.1038/nature21072 https://www.eurekalert.org/emb_releases/2017-01/sjcu-bsc012617.php http://www.nature.com/nature/journal/v527/n7579/full/nature16150.html http://rspb.royalsocietypublishing.org/content/279/1727/237.long http://www.nature.com/nature/journal/v520/n7548/full/nature14434.html#gill-slits-are-a-deuterostome-innovation Simon Conway Morris, Personal Communication http://science.sciencemag.org/content/early/2017/01/25/science.aal1579 http://www.sciencemag.org/news/2017/01/diamond-vise-turns-hydrogen-metal-potentially-ending-80-year-quest http://www.nature.com/news/metallic-hydrogen-hard-pressed-1.10817 http://www.nature.com/news/physicists-doubt-bold-report-of-metallic-hydrogen-1.21379 https://www.nytimes.com/2017/01/26/science/solid-metallic-hydrogen-harvard-physicists.html?_r=0 http://www.sciencealert.com/hydrogen-has-been-turned-into-a-metal-for-the-first-time-ever https://arstechnica.com/science/2017/01/80-years-late-scientists-finally-turn-hydrogen-into-a-metal/ https://www.scientificamerican.com/article/the-race-to-turn-gassy-hydrogen-into-solid-metal/ https://phys.org/news/2017-01-metallic-hydrogen-theory-reality.html Image source: https://www.eurekalert.org/multimedia/pub/131719.php?from=348805 https://en.wikipedia.org/wiki/Protostome#/media/File:Protovsdeuterostomes.svg
Просмотров: 828793 SciShow
Xenophyophores: The Strange Life of a Giant Single Cell
 
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You may think of single-celled organisms as being microscopically small, but these ocean dwellers are a little heftier than that. Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin, Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.researchgate.net/profile/Andrew_Gooday2 Tendal and Lewis, NZ Journal of Marine and Freshwater Research (1978), 12: 197-203 Swinbanks and Shirayama, Nature (1986), 320: 354-358 Hopwood et al, Journal of the Marine Biological Association of the UK (1997), 77: 969-987 Rothe et al, Deep Sea Research I (2011), 58: 1189-1195 Gooday et al, Biological Conservation (2017), 207: 106-116 http://oceanexplorer.noaa.gov/explorations/03windows/background/education/media/03win_giants.pdf http://news.nationalgeographic.com/news/2011/10/111026-deepest-mariana-trench-giant-amoebas-science-oceans/ ---------- Images: https://www.flickr.com/photos/51647007@N08/5277250609/ http://www.photolib.noaa.gov/htmls/expl6258.htm https://www.flickr.com/photos/51647007@N08/5277251291/
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Can You Make an Accurate Map?
 
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Earth is not flat. So, representing it on a flat surface can be challenging and always requires compromises. Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.users.miamioh.edu/shermalw/honors_2001_fall/honors_papers_2001/pettita_2001.html http://www.icsm.gov.au/mapping/map_projections.html http://nationalgeographic.org/activity/investigating-map-projections/ http://www.progonos.com/furuti/MapProj/Normal/ProjCyl/ProjCEA/projCEA.html http://xkcd.com/977/ http://www.businessinsider.com/mercator-projection-v-gall-peters-projection-2013-12?r=US&IR=T&IR=T http://www.winkel.org/other/Winkel%20Tripel%20Projections.htm Images: https://commons.wikimedia.org/wiki/File:AnAlbumOfMapProjections.pdf https://commons.wikimedia.org/wiki/File:Mercator-projection.jpg https://commons.wikimedia.org/wiki/File:Mercator_projection_SW.jpg https://ccsearch.creativecommons.org/image/detail/lGQeoEbPt2fwAzpFyA03Aw== https://commons.wikimedia.org/wiki/File:Tissot_mercator.png https://commons.wikimedia.org/wiki/File:Lambert-cylindrical-equal-area-projection.jpg https://commons.wikimedia.org/wiki/File:Cilinderprojectie-constructie.jpg https://commons.wikimedia.org/wiki/File:Tissot_indicatrix_world_map_Lambert_cyl_equal-area_proj.svg https://commons.wikimedia.org/wiki/File:Winkel-tripel-projection.jpg https://commons.wikimedia.org/wiki/File:Aitoff-projection.jpg https://commons.wikimedia.org/wiki/File:Equirectangular_projection_SW.jpg https://commons.wikimedia.org/wiki/File:Tissot_indicatrix_world_map_Winkel_Tripel_proj.svg https://commons.wikimedia.org/wiki/File:Dymaxion_2003_animation_small1.gif https://commons.wikimedia.org/wiki/File:Fuller_projection_with_Tissot%27s_indicatrix_of_deformation.png https://commons.wikimedia.org/wiki/File:Map-of-human-migrations.jpg https://commons.wikimedia.org/wiki/File:John_Newton_and_William_Palmer_SLNSW_globe_1782.jpg
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Why Do We Get Colds When It's Cold?
 
03:19
The temperature drops and you're more likely to get a cold: Is this correlation or causation? We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017 Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Kelly Landrum Jones, Sam Lutfi, Kevin Knupp, Nicholas Smith, Inerri, D.A. Noe, alexander wadsworth, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Bella Nash, Charles Southerland, Bader AlGhamdi, James Harshaw, Patrick Merrithew, Patrick D. Ashmore, Candy, Tim Curwick, charles george, Saul, Mark Terrio-Cameron, Viraansh Bhanushali, Kevin Bealer, Philippe von Bergen, Chris Peters, Justin Lentz ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://theconversation.com/mondays-medical-myth-you-can-catch-a-cold-by-getting-cold-2488 https://www.nytimes.com/2016/07/19/upshot/repeat-after-me-cold-does-not-increase-odds-of-catching-cold.html https://academic.oup.com/fampra/article/22/6/608/497956/Acute-cooling-of-the-feet-and-the-onset-of-common https://weather.com/health/news/why-we-catch-colds-when-the-weather-changes http://www.bbc.com/future/story/20151016-the-real-reason-germs-spread-in-the-winter https://www.cdc.gov/features/rhinoviruses/index.html https://medical-dictionary.thefreedictionary.com/pyrogen https://www.britannica.com/science/fever#ref195161 http://cmr.asm.org/content/26/1/135.full.pdf https://www.theguardian.com/news/2017/oct/06/why-cant-we-cure-the-common-cold http://www.ingentaconnect.com/contentone/iuatld/ijtld/2007/00000011/00000009/art00002 http://www.rhinologyjournal.com/Rhinology_issues/109_Eccles http://www.sciencedirect.com/science/article/pii/S0954611108003429 http://www.mdpi.com/1999-4915/8/9/244/htm http://journals.plos.org/plosone/article?id=10.1371/journal.pone.002148 http://www.sciencedirect.com/science/article/pii/S030698771500417X
Просмотров: 219333 SciShow
Why Do Some Farts Smell So Bad?
 
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Sometimes your farts stink, and sometimes they don't—and it's not because of methane. Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, D.A. Noe, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Nicholas Smith, Tim Curwick, Alexander Wadsworth, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.thrillist.com/health/nation/why-do-my-farts-smell-so-bad http://www.uib.no/en/news/95058/why-do-we-fart http://www.npr.org/sections/thesalt/2013/12/10/250007042/chowing-down-on-meat-and-dairy-alters-gut-bacteria-a-lot-and-quickly http://www.npr.org/sections/thesalt/2014/04/28/306544406/got-gas-it-could-mean-you-ve-got-healthy-gut-microbes https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3264926/ http://ajpgi.physiology.org/content/272/5/G1028 https://www.chemistryworld.com/news/explainer-the-chemistry-of-farts/2500168.article https://qz.com/929920/do-you-contaminate-your-environment-with-harmful-bacteria-when-you-fart/ https://www.thoughtco.com/chemical-composition-of-farts-608409 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1121900/ http://aem.asm.org/content/43/1/227.long https://pubchem.ncbi.nlm.nih.gov/compound/methanethiol#section=Top http://www.sciencedirect.com/science/article/pii/S1570023209003559 ---------- Images: https://www.flickr.com/photos/43344700@N07/6802069536/ https://en.wikipedia.org/wiki/File:EscherichiaColi_NIAID.jpg https://en.wikipedia.org/wiki/File:Candida_albicans.jpg https://commons.wikimedia.org/wiki/File:Methanethiol-3D-vdW.png https://commons.wikimedia.org/wiki/File:Hydrogen-sulfide-3D-vdw.svg https://commons.wikimedia.org/wiki/File:Dimethyl-sulfide-3D-vdW.png https://commons.wikimedia.org/wiki/File:Sulfur.jpg
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What Happens If You Leave Your Contacts in for Too Long?
 
03:15
If you're wearing contacts, you might want to take a look at this. We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017 Hosted by: ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Inerri, D.A. Noe, Charles Southerland, Fatima Iqbal, سلطان الخليفي, Nicholas Smith, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.mirror.co.uk/news/uk-news/student-who-ripped-cornea-after-9161849 http://jezebel.com/student-keeps-contacts-in-for-six-months-amoeba-eats-1604319154 http://www.med.umich.edu/1libr/Ophthalmology/ContactLens/SignsofInfectionfromContactLenses.pdf http://www.allaboutvision.com/contacts/faq/cls-damage-eyes.htm http://www.allaboutvision.com/contacts/extended.htm http://www.ccmr.cornell.edu/faqs/why-are-eyeballs-wet/ http://www.masseyeandear.org/for-patients/patient-guide/patient-education/diseases-and-conditions/cornea/function http://www.d.umn.edu/~jfitzake/Lectures/DMED/Vision/Optics/Crying.html https://www.aao.org/eyenet/article/confronting-corneal-ulcers?july-2012 https://u.osu.edu/buckmdblog/2013/02/19/how-long-can-i-leave-my-contact-lenses-in/ http://www.aaojournal.org/article/S0161-6420(99)00027-5/fulltext https://www.ncbi.nlm.nih.gov/pubmed/12394550 https://www.ncbi.nlm.nih.gov/pubmed/3863808 https://www.ncbi.nlm.nih.gov/books/NBK234044/
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Why Do I Have Varicose Veins?
 
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Usually, the 160,000 kilometers of blood vessels in your body work incredibly smoothly. However, the forces of age, weight gain, and gravity can conspire to cause lumpy varicose veins. Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Jeremy Peng, Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Scott Satovsky Jr, Will and Sonja Marple, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Saul, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.circulationfoundation.org.uk/help-advice/veins/varicose-veins-endovenous-laser-therapy https://www.fi.edu/heart/blood-vessels http://www.bbc.co.uk/schools/gcsebitesize/science/21c/keeping_healthy/heartdiseaserev2.shtml http://www.mayoclinic.org/diseases-conditions/varicose-veins/symptoms-causes/dxc-20178128 http://www.nhs.uk/conditions/Varicose-veins/Pages/Whatarevaricoseveins.aspx https://www.circulationfoundation.org.uk/help-advice/veins https://www.womenshealth.gov/publications/our-publications/fact-sheet/varicose-spider-veins.html#E http://search.proquest.com/openview/056a60d02a64d891a387978bb5ddd6f4/1?pq-origsite=gscholar http://www.hopkinsmedicine.org/healthlibrary/conditions/cardiovascular_diseases/varicose_veins_85,p08259/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3920493/ https://www.ncbi.nlm.nih.gov/pubmed/8616659
Просмотров: 252279 SciShow
Vampires: The Science Behind the Myth
 
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You’ve heard of vampires (pale, undead, sometimes sparkly), but did you know some of these myths have basis in scientific fact? We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017 Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Inerri, D.A. Noe, Charles Southerland, Fatima Iqbal, سلطان الخليفي, Nicholas Smith, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.livescience.com/24374-vampires-real-history.html https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1296679/pdf/jrsocmed00034-0052.pdf http://www.bbc.com/culture/story/20150727-from-dracula-to-the-strain-where-do-vampires-come-from http://www.bbc.com/future/story/20161031-the-real-life-disease-that-spread-the-vampire-myth https://blogs.scientificamerican.com/primate-diaries/a-natural-history-of-vampires/ http://science.howstuffworks.com/science-vs-myth/strange-creatures/vampire5.htm https://voices.nationalgeographic.org/2010/02/22/where_do_vampires_come_from/ http://www.mayoclinic.org/diseases-conditions/porphyria/home/ovc-20340614 http://www.porphyriafoundation.com/about-porphyria http://www.chm.bris.ac.uk/motm/hemoglobin/hemoglobv.htm http://scienceline.ucsb.edu/getkey.php?key=2419 https://www.ncbi.nlm.nih.gov/pubmed/6357846 http://www.smithsonianmag.com/history/the-great-new-england-vampire-panic-36482878/ https://www.niddk.nih.gov/health-information/liver-disease/porphyria http://www.umm.edu/health/medical/altmed/supplement/vitamin-b3-niacin
Просмотров: 225571 SciShow
Is Sugar Alcohol as Awesome as It Sounds?
 
03:33
Sugar alcohol sounds like a fun adult dessert, but what is it really? Hosted by: Stefan Chin ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin, Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://dtc.ucsf.edu/living-with-diabetes/diet-and-nutrition/understanding-carbohydrates/counting-carbohydrates/learning-to-read-labels/counting-sugar-alcohols/ https://www.accessdata.fda.gov/scripts/InteractiveNutritionFactsLabel/factsheets/Sugar_Alcohols.pdf http://www.masterorganicchemistry.com/2014/09/17/alcohols-1-nomenclature-and-properties/ http://www.chemguide.co.uk/organicprops/alcohols/background.html http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1521-379X(199803)50:2/3%3C120::AID-STAR120%3E3.0.CO;2-J/abstract Images: https://commons.wikimedia.org/wiki/File:1402_The_Tongue.jpg
Просмотров: 340524 SciShow
How "Flying Death" Has Saved Hundreds of Lives
 
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Curare, known as "flying death," was used for centuries to make poisoned arrows. Scientists discovered how to use it to create life saving medical treatments that we still use today. Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shoutout to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://onlinelibrary.wiley.com/doi/10.1038/sj.bjp.0706404/abstract http://www.sciencedirect.com/topics/page/Curare http://www. sciencedirect.com/science/article/pii/B9780123864543004826 http://www.med.uottawa.ca/historyofmedicine/hetenyi/milner.html http://nickalls.org/dick/papers/anes/curare1985a.pdf https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2312021/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1279945/ http://neuroscience.uth.tmc.edu/s1/chapter04.html https://books.google.com/books?id=_Du2bfrO9FwC&pg=PA527 https://www.atsdr.cdc.gov/toxprofiles/tp6.pdf https://www.atsdr.cdc.gov/phs/phs.asp?id=51&tid=16
Просмотров: 333992 SciShow
How Do Chips Make Credit Cards More Secure?
 
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If you live in the United States, you might have recently gotten a credit card with a microchip on it. But what does this chip do that makes it any different than the magnetic strip on the back of the card? ---------- We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017 Hosted by: Stefan Chin ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Kelly Landrum Jones, Sam Lutfi, Kevin Knupp, Nicholas Smith, Inerri, D.A. Noe, alexander wadsworth, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Bella Nash, Charles Southerland, Bader AlGhamdi, James Harshaw, Patrick Merrithew, Patrick D. Ashmore, Candy, Tim Curwick, charles george, Saul, Mark Terrio-Cameron, Viraansh Bhanushali, Kevin Bealer, Philippe von Bergen, Chris Peters, Justin Lentz ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.zdnet.com/article/the-pin-debate-retailers-banks-divided-on-post-emv-card-security/ https://www.nbcnews.com/business/consumer/one-year-are-chip-cards-effective-or-just-very-annoying-n663851 http://www.omaha.com/money/the-sound-is-annoying-but-chip-reader-s-alert-helps/article_a7ebbf88-3caf-50cd-a189-58f7fd386fe1.html https://beta.theglobeandmail.com/report-on-business/international-business/shift-to-chip-credit-cards-brings-us-in-line-with-canada-and-europe/article26590985/ https://www.theguardian.com/commentisfree/2014/jan/27/target-credit-card-breach-chip-pin-technology-europe http://blog.credit.com/2014/09/what-your-credit-card-number-means-94136/ http://www.investopedia.com/terms/m/magnetic-stripe-card.asp http://blog.opensecurityresearch.com/2012/02/deconstructing-credit-cards-data.html https://motherboard.vice.com/en_us/article/mgbm7p/why-chip-credit-cards-are-more-secure-than-magnetic-stripes https://www.creditcards.com/credit-card-news/emv-faq-chip-cards-answers-1264.php https://quickbooks.intuit.com/r/emv-migration/how-do-emv-transactions-differ-from-magnetic-stripe-transactions/ https://security.stackexchange.com/questions/49234/why-are-chips-safer-than-magnetic-stripes http://www.bankrate.com/finance/credit-cards/will-tokenization-protect-against-card-fraud.aspx https://www.computerworld.com/article/2960791/financial-it/faq-what-you-need-to-know-about-chip-embedded-credit-cards.html http://mashable.com/2015/10/01/emv-chip-credit-card-migration/ http://mashable.com/2015/11/11/consumers-credit-card-tokenization/ http://www.smartcardalliance.org/smart-cards-faq/ https://www.cryptomathic.com/hubfs/docs/cryptomathic_white_paper-emv_key_management.pdf [PDF] http://www.secuilibrium.com/news/emv-how-does-the-crypto-work-in-chip-based-payment-cards https://crypto.stanford.edu/~dabo/courses/cs255_winter14/lectures/EMV.pdf [PDF]
Просмотров: 299859 SciShow
Viroids: Possibly the Smallest Pathogens on Earth
 
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Potato spindle tuber disease wasn't a life-or-death situation, but it led to the discovery of viroids: infectious, replicating bits of RNA Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—Alexander Wadsworth, Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.ars.usda.gov/oc/timeline/viroid/ https://agresearchmag.ars.usda.gov/1999/dec/boon http://www.apsnet.org/publications/apsnetfeatures/Pages/Viroids.aspx https://www.ncbi.nlm.nih.gov/pubmed/25455904 http://www.els.net/WileyCDA/ElsArticle/refId-a0000434.html http://journal.frontiersin.org/article/10.3389/fmicb.2016.01552/full https://medlineplus.gov/ency/article/000216.htm http://www.sciencedirect.com/science/article/pii/S0168827809000592 https://biologydirect.biomedcentral.com/articles/10.1186/s13062-016-0116-7 http://www.pnas.org/content/86/23/9370.full.pdf http://exploringorigins.org/ribozymes.html http://mcmanuslab.ucsf.edu/node/246 https://www.nature.com/nrmicro/journal/v1/n1/full/nrmicro736.html http://www.sciencedirect.com/science/article/pii/0042682271903424?via%3Dihub https://www.apsnet.org/publications/PlantDisease/BackIssues/Documents/1984Articles/PlantDisease68n01_4.pdf
Просмотров: 398804 SciShow
What Really Happened the First Time We Split a Heavy Atom in Half
 
06:41
This episode was produced in collaboration with and sponsored by Emerson. Click here to learn more about their We Love STEM initiative: http://bit.ly/2fnBiHO When scientists first split the atom, they didn’t realize what they’d done until physicist Lise Meitner figured out they had discovered what we now call nuclear fission. We're conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017 Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: D.A. Noe, Nicholas Smith, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Bella Nash, Charles Southerland, Patrick D. Ashmore, Tim Curwick, charles george, Kevin Bealer, Philippe von Bergen, Chris Peters, Fatima Iqbal ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.sdsc.edu/ScienceWomen/meitner.html https://www.aps.org/publications/apsnews/200712/physicshistory.cfm https://www.chemheritage.org/historical-profile/otto-hahn-lise-meitner-and-fritz-strassmann http://www.washingtonpost.com/wp-srv/style/longterm/books/chap1/lisemeitner.htm http://bnrc.berkeley.edu/Famous-Women-in-Physical-Sciences-and-Engineering/lise-meitner.html http://pubs.acs.org/doi/pdf/10.1021/ed066p373 http://www.nature.com/physics/looking-back/meitner/index.html https://history.aip.org/exhibits/mod/fission/fission1/03.html https://www.nobelprize.org/nobel_prizes/chemistry/laureates/1944/hahn-lecture.pdf http://www.iop.org/resources/topic/archive/curie-meitner/page_65216.html https://www.iaea.org/sites/default/files/publications/magazines/bulletin/bull4-0/04004700911su.pdf Images: https://commons.wikimedia.org/wiki/File:Lise_Meitner12.jpg https://commons.wikimedia.org/wiki/File:Lise_Meitner12.jpg https://commons.wikimedia.org/wiki/File:Otto_Hahn_und_Lise_Meitner.jpg https://commons.wikimedia.org/wiki/File:Hahn_Meitner_1912.jpg https://commons.wikimedia.org/wiki/File:Beta-minus_Decay.svg https://commons.wikimedia.org/wiki/File:Nuclear_Fission_Experimental_Apparatus_1938_-_Deutsches_Museum_-_Munich.jpg https://commons.wikimedia.org/wiki/File:Barium_unter_Argon_Schutzgas_Atmosph%C3%A4re.jpg https://commons.wikimedia.org/wiki/File:Otto_Frisch_ID_badge.png N https://commons.wikimedia.org/wiki/File:Kerncentrale_Doel_in_werking.jpg https://commons.wikimedia.org/wiki/File:Ivy_Mike_-_mushroom_cloud.jpg https://commons.wikimedia.org/wiki/File:R1_KTH.jpg https://commons.wikimedia.org/wiki/File:Meitner_crater_on_Venus.jpg https://www.flickr.com/photos/smithsonian/4405642879/in/photolist-7Hj58Z-8gsVjm-SkZmGu-Amthpv-dJUhN2-9LTMEX-pwpgEz-ngAfn2-X3MxUd-h7rAMq-WMyN3w-h7sB8x-h7r8Ek-h7sphP-hyd1MS-iF3Zs4-h7rmC5-h7ri9m-hydV94-hycY83-D5d8Ra-h7rgB1-h7rz2w-hycs23-hydWxB-57x9o5-MvPgnq-4AYL1h-dJUkG8-7z13pW-htFmSj-gMYjHH-7z13iA-hsSNM6-dJUiuv-DpyMQD-VGmP8i-mHTndN-oNzVo8-6yUoT-4AYKZu-bxaN3X-8Qt9Zo-9LTzDF-hsSHq4-dNfuPq-dN9MXR-dJZHsm-91UA8t-pKoiJ6
Просмотров: 682431 SciShow
The Man Who Tried to Give Himself An Ulcer... For Science
 
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In 1984, Dr. Barry Marshall had a theory about ulcers that he couldn't convince the science community of. So, he took matters into his own hands... or stomach, and infected himself with a potentially deadly bacterium. Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shoutout to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://medlineplus.gov/pepticulcer.html http://discovermagazine.com/2010/mar/07-dr-drank-broth-gave-ulcer-solved-medical-mystery https://www.cancer.gov/about-cancer/causes-prevention/risk/infectious-agents/h-pylori-fact-sheet#q4 https://www.nobelprize.org/nobel_prizes/medicine/laureates/2005/warren-slides.pdf https://www.nobelprize.org/nobel_prizes/medicine/laureates/2005/warren-lecture.pdf https://www.nobelprize.org/nobel_prizes/medicine/laureates/2005/marshall-lecture.pdf https://www.nobelprize.org/nobel_prizes/medicine/laureates/2005/press.html https://www.cdc.gov/ulcer/history.htm https://www.ncbi.nlm.nih.gov/books/NBK2432/ https://www.nobelprize.org/nobel_prizes/medicine/laureates/2005/ Martin Blaser's "Missing Microbes" book, pp. 104-152 http://www.newyorker.com/magazine/2012/10/22/germs-are-us https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1283743/ http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(84)91816-6/abstract https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1539101/
Просмотров: 273719 SciShow
3 Wasps That Will Do Anything to Survive
 
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From ripping your own appendages off to cockroach mind control, wasps go to great lengths to ensure the survival of their species. Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin, Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://animals.nationalgeographic.com/animals/bugs/wasp/ Fig wasps: http://www.sciencedirect.com/science/article/pii/S0960982205014661 http://www.bbc.co.uk/earth/story/20160429-a-tale-of-loyalty-and-betrayal-starring-figs-and-wasps https://askabiologist.asu.edu/figs-without-wasps Fairy wasps: http://www.sciencedirect.com/science/article/pii/S1467803911000946 http://blogs.discovermagazine.com/notrocketscience/2011/11/30/how-fairy-wasps-cope-with-being-smaller-than-amoebas/#.WQinO1Pytxw Jewel wasps: https://www.scientificamerican.com/article/how-a-wasp-turns-cockroaches-into-zombies/ https://academic.oup.com/icb/article-lookup/doi/10.1093/icb/icu006
Просмотров: 884855 SciShow
6 of the Longest Experiments Ever
 
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From the bell that hasn't stopped ringing, to observing evolution in action, SciShow presents 6 of the Longest Experiments Ever. Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin, Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: The Electric Bell http://www.physics.ox.ac.uk/history.asp?page=exhibit1 http://www.atlasobscura.com/places/oxford-electric-bell http://www.popularmechanics.com/technology/gadgets/a22506/worlds-longest-running-battery-176-years/ Beal’s Seed Viability Experiment http://www.cpa.msu.edu/beal/research/research_frames.htm https://www.jstor.org/stable/2435371?seq=1#page_scan_tab_contents http://www.amjbot.org/content/89/8/1285.full#ref-16 The Pitch Drop http://www.nature.com/news/long-term-research-slow-science-1.12623 http://smp.uq.edu.au/content/pitch-drop-experiment http://theconversation.com/explainer-the-pitch-drop-experiment-33734 Framingham Heart Study https://www.framinghamheartstudy.org/about-fhs/research-milestones.php https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4159698/ E.Coli http://myxo.css.msu.edu/ecoli/overview.html https://www.sciencedaily.com/releases/2016/08/160801131102.htm http://www.nytimes.com/2011/03/22/science/22evolve.html http://news.harvard.edu/gazette/story/2014/02/evolution-in-real-time/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2430337/ 500-year micro experiment http://www.microbiologysociety.org/publications/microbiology-today/past-issues.cfm/publication/world-war-I/article/49E6A445-B246-4034-A4E2DE4314948E55 https://www.researchgate.net/publication/280698316_The_500_Year_Microbiology_Experiment http://www.academia.edu/19752863/A_500-year_experiment Image Links: https://commons.wikimedia.org/wiki/File:Oxford_Electric_Bell.jpg https://commons.wikimedia.org/wiki/File:Oxford-electric-bell.svg https://commons.wikimedia.org/wiki/File:Kudzu_field_horz2.JPG https://commons.wikimedia.org/wiki/File:The_history_of_the_Treman,_Tremaine,_Truman_family_in_America;_with_the_related_families_of_Mack,_Dey,_Board_and_Ayers;_being_a_history_of_Joseph_Truman_of_New_London,_Conn._(1666);_John_Mack_of_Lyme,_(14781664474).jpg https://commons.wikimedia.org/wiki/File:University_of_Queensland_Pitch_drop_experiment.jpg https://en.wikipedia.org/wiki/File:Richard_Lenski_with_Long-Term_Flasks_and_Incubator_on_May_26,_2016.jpg https://en.wikipedia.org/wiki/Escherichia_coli#/media/File:EscherichiaColi_NIAID.jpg https://en.wikipedia.org/wiki/File:Chrococcidiopsis_Glass_Ampoules.jpg https://commons.wikimedia.org/wiki/File:500_Year_Microbiology_Experiment.JPG
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Why Do Glue Labels Warn Not to Sniff It?
 
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Abusing inhalants, like glue, can cause serious health problems, and you shouldn't need a video on the internet to tell you that. But let's take a deeper look at why these chemicals are so dangerous. Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shoutout to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.drugabuse.gov/publications/research-reports/inhalants/letter-director https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4211428/ http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.691.6535&rep=rep1&type=pdf http://r.wildcatem.com/wp-content/uploads/2014/11/193_Hydrocarbons-and-Volatile-Substances_Tintinalli.pdf Articles available online: Cámara-Lemarroy et al., 2012 “Clinical presentation and management in acute toluene intoxication: a case series”, Inhalation Toxicology, 24(7): 434-438 Meulenbelt et al., 1990 “Two cases of acute toluene intoxication”, British Journal of Industrial Medicine, 47: 417-420 Cruz et al., 2014 “Review of toluene action: clinical evidence, animal studies and molecular targets” Journal of drug and alcohol research, 3: 235840 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4211428/ Gerasimov et al., 2002 “Toluene inhalation produces regionally specific changes in extracellular dopamine” Drug and Alcohol dependence, 65 (3) 243-251 Images: https://commons.wikimedia.org/wiki/File:USMC-07664.jpg https://commons.wikimedia.org/wiki/File:Toluene-from-xtal-3D-balls.png
Просмотров: 779565 SciShow