На главную
Видео добавленное пользователем “SciShow” за 2013
What Happens When You Stop Eating?
 
04:47
You know what starvation is, but do you know what it does to you? Hank walks you through the three major metabolic phases of starvation, from burning sugars to, basically, self-cannibalism. ----------- 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/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.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 Thanks Tank Tumblr: http://thankstank.tumblr.com Thumbnail credit: epSos.de Sources: http://io9.com/5941883/how-your-body-fights-to-keep-you-alive-when-youre-starving http://blogs.plos.org/obesitypanacea/2011/05/13/the-science-of-starvation-how-long-can-humans-survive-without-food-or-water/ http://www.wisegeek.com/what-are-the-effects-of-starvation.htm http://www.mayoclinic.com/health/eating-disorders/DS00294/DSECTION=symptoms http://www.mhhe.com/biosci/ap/saladin/digestive/reading5.mhtml http://www.livestrong.com/article/35040-side-effects-starvation/ http://www.sciencedirect.com/science/article/pii/S109564331000005X http://www.worldhunger.org/articles/Learn/world%20hunger%20facts%202002.htm http://www.psychologytoday.com/blog/hunger-artist/201011/starvation-study-shows-recovery-anorexia-is-possible-only-regaining-weight http://www.madinamerica.com/2013/05/starvation-what-does-it-do-to-the-brain/ http://science.howstuffworks.com/life/cellular-microscopic/fat-cell1.htm
Просмотров: 1520860 SciShow
What is Salvia?
 
03:28
Salvia divinorum, despite sounding like a spell from the world of Harry Potter, can't turn you into an inanimate object, make you leave your body, or set your feet on fire. However, it can make you FEEL like all of those things are happening. This little plant is a hallucinogen - one so powerful and unique that the DEA isn't quite sure how to regulate it. Hank's got the details on this psychotropic member of the sage genus in this episode of SciShow. 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/artist/52/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 References for this episode can be found in the Google document here: http://dft.ba/-6eHF
Просмотров: 1359810 SciShow
Pickles, Probiotics, and Why Rotten Food Is Good For You
 
03:33
Probiotics eat our food for us and help us digest. Gross? Or amazing?? Hank explains why we need bacteria and how cool it is. Like SciShow? Want to get cool 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/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.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 Thanks Tank Tumblr: http://thankstank.tumblr.com SOURCES http://www.npr.org/2013/04/07/176463491/why-you-shouldnt-wrinkle-your-nose-at-fermentation http://www.wildfermentation.com/ http://www.washingtonpost.com/blogs/on-parenting/post/fermented-foods-bubble-with-healthful-benefits/2012/11/19/db70ea76-329b-11e2-9cfa-e41bac906cc9_blog.html http://www.nature.com/nature/videoarchive/gutmicrobes/index.html http://www.huffingtonpost.com/grace-suh-coscia-lac-diplom/fermented-foods_b_1220756.html http://articles.mercola.com/sites/articles/archive/2010/07/06/probiotics-bacteria-gut-digestive-health-immune-system.aspx http://jn.nutrition.org/content/130/2/410.full http://www.npr.org/2012/06/13/154914381/fermentation-when-food-goes-bad-but-stays-good http://www.nature.com/scitable/topicpage/yeast-fermentation-and-the-making-of-beer-14372813 ** http://science.howstuffworks.com/dictionary/biology-terms/fermentation-info.htm * http://www.soyinfocenter.com/HSS/fermentation.php *** http://www.huffingtonpost.com/2013/05/02/beer-facts-trivia_n_3193415.html http://www.nytimes.com/2013/03/17/opinion/sunday/how-beer-gave-us-civilization.html?_r=0 http://www.forbes.com/fdc/welcome_mjx.shtml http://www.livescience.com/10221-beer-lubricated-rise-civilization-study-suggests.html http://www.mayoclinic.com/health/probiotics/AN00389 http://www.huffingtonpost.ca/natasha-turner-nd/probiotics-prebiotics_b_1409702.html http://www.ercprobioticenzymes.com/faq.html#What are enzymes? Enzyme description:
Просмотров: 699861 SciShow
What Happens if Your Body is Exposed to the Vacuum of Space?
 
03:47
Hank answers a SciShow viewer's most pressing question about what happens if the human body gets exposed to space. Would your head really explode? Like SciShow? http://www.facebook.com/scishow Follow SciShow! http://www.twitter.com/scishow T*umbl SciShow. http://scishow.tumblr.com References http://imagine.gsfc.nasa.gov/docs/ask_astro/answers/970603.html http://blogs.discovermagazine.com/badastronomy/2012/01/31/qba-what-happens-if-you-are-exposed-to-the-vacuum-of-space/#.UMGD-pPjn0g
Просмотров: 1496930 SciShow
Why Do Cats Purr?
 
03:22
The smaller members of the felid family can purr, but why? Hank takes on this most adorable of life's mysteries in todays episode of SciShow. Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Tardigrade Poster: http://vid.io/xom SciShow Mug: http://vid.io/xoa SciShow Shirt: http://vid.io/xog -- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com References for this episode can be found in the Google document here: http://dft.ba/-5zZL
Просмотров: 1504197 SciShow
Warp Drives!
 
04:00
Hank talks about how warp drives could potentially work. Like SciShow! http://www.facebook.com/scishow Follow SciShow! http://www.twitter.com/scishow T*mbl SciShow! http://scishow.tumblr.com References and licenses for this episode can be found in the Google document here: http://dft.ba/-3wrS
Просмотров: 984161 SciShow
Why No Giant Mammals?
 
03:25
Hank gives a quick run-down of the reasons scientists think the land mammals of today are nowhere near the size of the largest sauropods. Some of them might surprise you! If you liked this video, check out more videos about natural history and paleontology on SciShow's sister channel, Eons: https://www.youtube.com/eons 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/artist/52/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 SOURCES http://news.discovery.com/animals/how-dinosaurs-got-so-big-120131.html http://dinosaurs.about.com/od/dinosaurevolution/a/bigdinos.htm http://www.newscientist.com/article/dn19771-why-mammals-grew-big--and-then-stopped.html http://www.scientificamerican.com/article.cfm?id=land-size-limits-body-size http://ngm.nationalgeographic.com/ngm/0507/resources_who.html http://earthsky.org/earth/felisa-smith-why-mammals-havent-out-sized-biggest-dinosaurs http://www.sciencemag.org/content/330/6008/1216.abstract http://www.cam.ac.uk/research/features/mammals-vs-dinosaurs http://blogs.smithsonianmag.com/dinosaur/2012/06/when-mammals-ate-dinosaurs/ http://svpow.com/2013/02/19/personal-milestones-publishing-the-ph-d http://www.slate.com/articles/news_and_politics/explainer/2009/02/a_snake_the_size_of_a_plane.html http://www.dinodatabase.com/dinorcds.asp http://voices.yahoo.com/indricotherium-largest-land-mammal-ever-237482.html http://science.kqed.org/quest/2010/03/17/the-largest-land-mammal-that-ever-lived/ http://phenomena.nationalgeographic.com/2013/02/25/dinosaur-reproduction-not-ancient-gravity-made-sauropods-super-sized/ http://www.popsci.com/science/article/2012-02/hot-weather-makes-mammals-smaller-%E2%80%94%C2%A0what-does-mean-global-warming http://scienceline.ucsb.edu/getkey.php?key=427 http://www.smithsonianmag.com/science-nature/dinosaurs/How-to-Build-a-Giant-Dinosaur.html http://www.plosone.org/article/info:doi/10.1371/journal.pone.0028442 http://www.nmfs.noaa.gov/pr/species/mammals/cetaceans/bluewhale.htm
Просмотров: 1789460 SciShow
The Search for Antimatter
 
04:39
Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Tardigrade Poster: http://vid.io/xom SciShow Mug: http://vid.io/xoa SciShow Shirt: http://vid.io/xog -- If you don't have any idea what antimatter is, you don't have to feel bad - the brightest minds in the world have only recently begun to understand what it is and how it works. Hank gives us the run down on what we know about antimatter, and what we're still trying to figure out. http://www.facebook.com/scishow http://www.twitter.com/scishow http://scishow.tumblr.com References http://newscenter.lbl.gov/feature-stories/2006/07/26/why-daya-bay/ http://www.deepscience.org/contents/underground_universe.shtml http://en.wikipedia.org/wiki/File:Dirac_4.jpg http://en.wikipedia.org/wiki/File:Daya_Bay_Nuclear_Power_Plant.jpg http://en.wikipedia.org/wiki/File:Guangdong_in_China_(%2Ball_claims_hatched).svg [credit TUBS]
Просмотров: 881533 SciShow
The Science of Hangovers
 
03:26
So what exactly is it that makes a hangover suck so hard? Turns out there are three things interacting to make you feel miserable. Hank's got the details in this episode of SciShow. (Having déjà vu? This video was accidentally uploaded earlier in the week, prior to its scheduled posting date, and without a description or annotations. We removed that video and have uploaded this video, which is the same as that one, but with those assets. Sorry for any confusion!) 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/artist/52/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 SOURCES http://www.mayoclinic.com/health/hangovers/DS00649 http://www.nytimes.com/2011/12/29/fashion/new-products-to-treat-hangovers.html?_r=0 http://www.scientificamerican.com/article.cfm?id=why-do-hangovers-occur http://urbanlegends.about.com/gi/o.htm?zi=1/XJ&zTi=1&sdn=urbanlegends&cdn=newsissues&tm=443&f=20&su=p504.6.342.ip_&tt=2&bt=1&bts=10&zu=http%3A//www.bbc.co.uk/dna/h2g2/alabaster/A103140 http://science.howstuffworks.com/life/human-biology/hangover.htm http://www.popsci.com/science/article/2012-05/fyi-can-drinking-moonshine-really-make-me-go-blind http://pubs.niaaa.nih.gov/publications/aa55.htm http://www.theatlantic.com/magazine/archive/2012/09/does-tequila-make-us-crazy/309058/
Просмотров: 736849 SciShow
The Oldest Star in the Universe
 
03:25
Hank tells the story of the mysterious star known as "Methuseleh," and why scientists think that it is the oldest known star in the universe. Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Tardigrade Poster: http://vid.io/xom SciShow Mug: http://vid.io/xoa SciShow Shirt: http://vid.io/xog -- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com References Watch Galaxies Collide: http://commons.wikimedia.org/w/index.php?title=File%3AAndromeda_and_Milky_Way_collision.ogg Strange 'Methuselah' Star Looks Older Than the Universe: http://www.space.com/20112-oldest-known-star-universe.html Hubble Finds Birth Certificate of Oldest Known Star: http://www.nasa.gov/mission_pages/hubble/science/hd140283.html
Просмотров: 893866 SciShow
Anxiety Hurts
 
03:21
Everybody knows what anxiety feels like - it's annoying and counterproductive and apparently useless, so why does it exist? It turns out your anxiety isn't useless at all - it's a result of the sympathetic nervous system (in charge of the fight or flight response), which lets you respond immediately to threats and can also help you meet that looming deadline. But you don't want your SNS running the whole show - chronic anxiety not only feels crappy, it damages your cells, alters your brain chemistry, and can exacerbate a wide range of health problems. Hank has the whole story in this episode of SciShow. Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Tardigrade Poster: http://vid.io/xom SciShow Mug: http://vid.io/xoa SciShow Shirt: http://vid.io/xog -- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com References: Oxidative Stress & Anxiety http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2763246/ Depression & Chronic Stress Accelerates Aging http://www.sciencedaily.com/releases/2011/11/111109093729.htm 10 Stress-Related Health Problems You Can Fix http://www.webmd.com/balance/stress-management/features/10-fixable-stress-related-health-problems Relationship Between Oxidative Stress and Anxiety: Emerging role of antioxidants within therapeutic or preventative approaches http://cdn.intechopen.com/pdfs/17568/InTech-Relationship_between_oxidative_stress_and_anxiety_emerging_role_of_antioxidants_within_therapeutic_or_preventive_approaches.pdf
Просмотров: 651857 SciShow
Why Are There Righties & Lefties?
 
02:57
About 10% of the world population is left-handed. But why does handedness exist and what determines which hand is dominant? Scientists have suggested several theories, but the answer may well lie with evolution. 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/artist/52/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 References and image licenses for this episode can be found in the Google document here: http://dft.ba/-5Qaz
Просмотров: 1372191 SciShow
What Happens If You're Struck By Lightning?
 
04:00
The chances of you being hit by lightning are small by comparison, but it does happen! Hank will go through what ultimately happens when you are struck by lightning because chances are you will survive to tell it to your friends. Like SciShow? Want to get cool 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/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.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 Thanks Tank Tumblr: http://thankstank.tumblr.com Sources for this episode: http://www.npr.org/blogs/theprotojournalist/2013/07/17/200140433/the-randomness-of-lightning-fatalities-a-mapstory?utm_source=npr&utm_medium=facebook&utm_campaign=20130717 http://www.bbc.com/future/story/20120926-what-causes-lightening/2 http://science.howstuffworks.com/nature/climate-weather/storms/struck-by-lightning.htm http://www.washingtonpost.com/blogs/capital-weather-gang/wp/2013/05/08/ten-shocking-things-that-can-happen-if-you-are-struck-by-lightning/ http://twistedsifter.com/2012/03/lichtenberg-figures-lightning-strike-scars/ http://www.lightning-strike.org/DesktopDefault.aspx http://www.afms.af.mil/news/story.asp?id=123316472 http://www.slate.com/articles/news_and_politics/dispatches/2005/06/dont_stand_by_me.html http://www.nytimes.com/1983/09/30/obituaries/roy-sullivan.html http://discovertheodds.com/what-are-the-odds-of-being-struck-by-lightning/ http://news.nationalgeographic.com/news/2004/06/0623_040623_lightningfacts.html http://mddirect.org/2012/08/06/when-lightning-strikes/
Просмотров: 1094350 SciShow
3 Neat Facts About Narwhals (Including: They're Real!)
 
03:38
In case you didn't know, not only are narwhals real, they're rad. Hank shares some little known facts about one of the least understood sea mammals, including some insights into why they're so hard to study, and what that big thing on its face is for! ----------- 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/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.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 Thanks Tank Tumblr: http://thankstank.tumblr.com Sources: http://www.narwhal.org/index.html http://animals.nationalgeographic.com/animals/mammals/narwhal/ http://ngm.nationalgeographic.com/2007/08/hunting-narwhals/hunting-narwhals-text http://animaldiversity.ummz.umich.edu/accounts/Monodontidae/ http://www.nytimes.com/2005/12/13/science/13narw.html?pagewanted=all&_r=0 ** tusk is sensitive http://www.smithsonianmag.com/science-nature/In-Search-of-the-Mysterious-Narwhal.html * http://science.howstuffworks.com/zoology/marine-life/narwhal3.htm *tusks http://www.defenders.org/narwhal/basic-facts
Просмотров: 831788 SciShow
5 Amazing Facts About Babies
 
03:03
You know what's weird? Babies. They cry but don't produce tears; they can crawl before they can ... crawl. And they have MORE BONES THAN YOU! Learn more about these and other odd truths about newborn miniature humans. -- 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/artist/52/SciShow or subscribe to our Subbable at https://subbable.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 --- Sources for this episode: http://patients.dartmouth-hitchcock.org/obstetrics/dhmc_tips.html http://www.breastcrawl.org/science.shtml http://abcnews.go.com/Technology/story?id=97635&page=1 http://www.theguardian.com/science/2008/apr/29/1 http://www.europeanmedicaltourist.com/orthopedic-surgery/human-skeleton.html http://www.babycenter.com/404_is-it-true-that-babies-are-born-with-the-ability-to-swim-and_10313062.bc
Просмотров: 568623 SciShow
Gluten
 
04:05
Gluten is a sticky protein composite found in cereal grains. Hank gives us some insight into the importance of gluten in history, as well as its impact on health in our own time. 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/artist/52/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 References for this episode can be found in the Google document here: http://dft.ba/-5E72
Просмотров: 586548 SciShow
3 Whack Weather Phenomena
 
04:38
Hank describes three of the whackest weather phenomena on Earth: atmospheric rivers, fire tornadoes, and ball lightning. Super interesting and super weird. Like SciShow: http://www.facebook.com/scishow Follow SciShow: http://www.twitter.com/scishow T*mbl SciShow: scishow.tumblr.com References for this episode can be found in the Google document: http://dft.ba/-3sdO
Просмотров: 418978 SciShow
Rogue Waves
 
03:22
For a long time, rogue waves (defined as waves that are greater than twice the height of surrounding waves) were thought to be a myth, like mermaids or the kraken, but recent developments in satellite imagery and oceanic instruments now show that they occur on a semi-regular basis. But we're still not sure why... 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/artist/52/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 SOURCES http://oceanservice.noaa.gov/facts/roguewaves.html http://news.sciencemag.org/sciencenow/2011/05/ship-in-bottle-meet-rogue-wave.html?ref=hp http://www.nytimes.com/2006/07/11/science/11wave.html?pagewanted=all&_r=0 http://www.ox.ac.uk/media/science_blog/110615.html http://thefutureofthings.com/column/1005/the-wave-that-changed-science.html http://oceanservice.noaa.gov/facts/surge.html http://www.ngi.no/en/News/Monster-wave-becomes-world-famous/ http://www.economist.com/node/14446734?story_id=14446734 http://www.bbc.co.uk/science/horizon/2002/freakwave.shtml http://oceancurrents.rsmas.miami.edu/indian/agulhas.html http://oceanservice.noaa.gov/education/tutorial_currents/
Просмотров: 328931 SciShow
Coriolis Effect: IDTIMWYTIM
 
03:05
Does your toilet water drain differently than in the other hemisphere? Is it because of the Coriolis effect? Hank has some things to clarify about these questions, and more in this edition of I Don't Think It Means What You Think It Means. 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/artist/52/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 Sources http://www.snopes.com/science/coriolis.asp http://science.howstuffworks.com/science-vs-myth/everyday-myths/rotation-earth-toilet-baseball2.htm http://www.ems.psu.edu/~fraser/Bad/BadCoriolis.html http://oceanservice.noaa.gov/education/kits/currents/05currents1.html http://education.nationalgeographic.com/education/encyclopedia/coriolis-effect/?ar_a=1 http://en.wikipedia.org/wiki/File:Gustave_coriolis.jpg
Просмотров: 673616 SciShow
Can We Get to Alpha Centauri?
 
03:41
You like space exploration, and we like space exploration. So why aren't we investigating our closest to galactic neighbor, the triple star system Alpha Centauri? Is it time to give interstellar travel a shot? How would we do it? Hank explains our options, and lays out the challenges. Short version: You're gonna have to be patient! Like SciShow? Want to get cool 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/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.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 Thanks Tank Tumblr: http://thankstank.tumblr.com Sources for this episode: http://www.nytimes.com/2013/06/11/science/space/scientists-cast-doubt-on-the-closest-exoplanet.html?_r=1& http://news.discovery.com/space/alien-life-exoplanets/time-to-plan-for-a-millennium-mission-to-alpha-centauri-130617.htm http://blogs.discovermagazine.com/badastronomy/2012/10/16/alpha-centauri-has-a-planet/#.Uilb1JJt5r8 http://www.space.com/5094-alpha-centauri.html http://earthsky.org/space/alpha-centauri-travel-time http://www.nbcnews.com/id/49469723/ns/technology_and_science-space/t/alpha-centauri-mission-make-it-so-experts-say/#.UilebpJt5r8 http://www.theatlantic.com/technology/archive/2012/10/could-we-one-day-send-humans-to-the-newly-discovered-planet-orbiting-alpha-centauri-b/263765/
Просмотров: 885991 SciShow
Food Mold 101
 
03:50
It's a moldy world out there, especially in the kitchen. You have questions about food mold, right? Well Hank has your answers. 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/artist/52/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 References for this episode can be found in the Google document here: http://dft.ba/-61LN
Просмотров: 591725 SciShow
Sleep: Why We Need It and What Happens Without It
 
08:37
What happens when you don't sleep? And why do we need to do it anyways? Hank explains the science of sleep: the cause, the benefits, and who holds the record for going without it! Like SciShow? Want to get cool 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/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.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 Thanks Tank Tumblr: http://thankstank.tumblr.com Thumbnail credit: Mark Sebastian Sources for this episode: http://healthysleep.med.harvard.edu/healthy/science/what/characteristics http://healthysleep.med.harvard.edu/healthy/matters/benefits-of-sleep/why-do-we-sleep http://faculty.washington.edu/chudler/chasleep.html http://www.sleepfoundation.org/article/how-sleep-works/animals-sleep-there-human-connection http://www.bbc.co.uk/science/humanbody/sleep/articles/whatissleep.shtml http://healthysleep.med.harvard.edu/image/200 http://www.nhahealth.com/science.htm http://blogs.discovermagazine.com/crux/2012/05/14/is-the-purpose-of-sleep-to-let-our-brains-defragment-like-a-hard-drive/#.UeOA_tLvsuc http://phys.org/news/2011-02-why-do-we-sleep.html http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3385863/ http://www.sciencenews.org/sn_arc97/5_24_97/fob2.htm http://harvardmagazine.com/2005/07/deep-into-sleep.html http://health.howstuffworks.com/mental-health/sleep/basics/why-do-we-sleep.htm http://www.scientificamerican.com/article.cfm?id=how-long-can-humans-stay http://www.indiana.edu/~p1013447/dictionary/sleepdep.htm http://www.sciencenews.org/view/generic/id/348604/description/News_in_Brief_Sleep_loss_affects_gene_activity http://www.sciencedaily.com/releases/2009/12/091215160900.htm http://science.howstuffworks.com/life/inside-the-mind/human-brain/sleep1.htm http://www.pbs.org/wnet/brain/episode3/sleep/ http://ngm.nationalgeographic.com/2010/05/sleep/max-text http://www.sleepfoundation.org/article/sleep-topics/melatonin-and-sleep http://discovermagazine.com/2006/oct/why-we-sleep#.UeLzwdLvsuc http://harvardmagazine.com/2005/07/deep-into-sleep.html
Просмотров: 2074212 SciShow
Hallucinogens as Medicine
 
04:50
Is it possible that, because of the war on drugs, we have demonized a treatment for otherwise untreatable diseases? A way to increase personal well-being, permanently treat depression, break the cycle of addiction, and ease the transition from life into death? The solution to all of these problems (for many people) might be a nice, hallucinogenic trip, but taking that trip can be harder than you might think. 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/artist/52/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 References for this episode can be found in the Google document here: http://dft.ba/-5R3l
Просмотров: 430964 SciShow
Krokodil, fake pot and the real chemistry of drugs
 
03:58
Time Magazine has called it "the most horrible drug in the world," and last month, it hit the US. Because seriously, why would you take a drug that rots your flesh, bones, and brain?! Hank Green discusses the science behind the street drug 'Krokodil', & fake THC. Like SciShow? Want to get cool 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/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.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 Thanks Tank Tumblr: http://thankstank.tumblr.com Sources for this episode: http://www.usatoday.com/story/news/nation/2013/09/26/heroin-krokodil-flesh-rotting-arrives-us-arizona/2879817/ http://en.wikipedia.org/wiki/Desomorphine http://www.eurekalert.org/pub_releases/2013-10/acs-tut100213.php http://pubs.acs.org/doi/abs/10.1021/ac4024704 http://www.nbcnews.com/id/35444158#.UlNi3iR56Ts
Просмотров: 1259372 SciShow
Stem Cells
 
03:48
Hank gives you the facts on stem cells - what they are, what they're good for, where they come from, and how they're used in medicine. 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/artist/52/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 References for this episode can be found in the Google document here: http://dft.ba/-5DcW
Просмотров: 523781 SciShow
Carl Sagan
 
04:07
Hank pays tribute to Carl Sagan, noting his accomplishment as an astronomer and his contributions to culture -- both pop and otherwise -- as one of the great popularizers of science. Happy Carl Sagan Day! ----------- 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/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.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 Thanks Tank Tumblr: http://thankstank.tumblr.com Sources: http://www.networkworld.com/columnists/2012/092412-buzz-262652.html http://blogs.discovermagazine.com/badastronomy/2012/11/09/repost-carl-sagan-day/#.UgzXXhafoUU http://www.carlsagan.com http://www.nytimes.com/learning/general/onthisday/bday/1109.html http://www.americanscientist.org/bookshelf/pub/carl-sagan-carl-sagan-biographies-echo-an-extraordinary-life
Просмотров: 349420 SciShow
What's Killing the World's Amphibians?
 
04:15
Of the more than 7,000 known species of amphibians in the world, an estimated one third are now threatened with extinction. Hank breaks down the science behind the decline of amphibians around the world, and what you can do to help. 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/artist/52/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 Sources for this episode: http://amphibiaweb.org/declines/#intro http://www.npr.org/blogs/thetwo-way/2013/05/24/186451082/amphibians-population-decline-marked-in-new-u-s-study http://www.usgs.gov/newsroom/article.asp?ID=3597 http://www.livescience.com/37002-amphibian-decline.html http://biodiversitygroup.org/topics/amphibian_declines.html http://www.amphibiaweb.org/chytrid/chytridiomycosis.html http://www.hcn.org/issues/60/1859 http://www.scientificamerican.com/article.cfm?id=explaining-californias-am http://www.newscientist.com/article/mg19726443.300-habitat-loss-drives-decline-in-amphibians.html http://www.pnas.org/content/110/23/9385.short http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0064347
Просмотров: 384814 SciShow
This is NOT What Evolution Looks Like
 
03:51
Hank explains where that over-simplified image of evolution comes from and what it is actually supposed to mean. 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/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.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 Thanks Tank Tumblr: http://thankstank.tumblr.com SOURCES: http://en.wikipedia.org/wiki/March_of_Progress http://evolution.berkeley.edu/evolibrary/article/evograms_07 http://mentalfloss.com/article/19428/neanderthal-vs-cro-magnon-whats-difference http://www.sci-news.com/paleontology/science-oreopithecus-01261.html
Просмотров: 1754833 SciShow
The World's First Human-Made Nuclear Reactor
 
03:22
Today on SciShow, Hank brings us a little science history, telling us the tale of the world's first human-made nuclear reactor, which was built by a team of scientists and students led by Enrico Fermi in a converted squash court under a football field in Chicago. Yes, that Chicago. Scientists discovered a natural nuclear reactor that had existed in Africa about two billion years ago, which is why we can't say that this is the world's first EVER nuclear reactor. Read more about that here: http://www.scientificamerican.com/article.cfm?id=ancient-nuclear-reactor and here: http://blogs.scientificamerican.com/guest-blog/2011/07/13/natures-nuclear-reactors-the-2-billion-year-old-natural-fission-reactors-in-gabon-western-africa/ 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/artist/52/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 References for this episode can be found in the Google document here: http://dft.ba/-6Ifz
Просмотров: 426164 SciShow
Pliny The Elder: Great Minds
 
04:24
Before there was Google, there were encyclopedias. The very idea of these vast collections of knowledge can be credited to Pliny The Elder. So who was he, and why does he seem to pop up everywhere from Alchemy to Zoology? Hank has the story in this edition of SciShow: Great Minds. 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/artist/52/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 SOURCES http://www.nytimes.com/2003/12/21/books/the-age-of-aquarii.html?pagewanted=all&src=pm http://query.nytimes.com/mem/archive-free/pdf?res=F10810FD3E5A1A738DDDA00994D9415B8385F0D3 http://scienceworld.wolfram.com/biography/PlinytheElder.html http://www.smithsonianmag.com/history-archaeology/pliny-abstract.html http://www.encyclopedia.com/topic/Pliny_the_Elder.aspx http://www.encyclopedia.com/topic/Pliny_the_Elder.aspx#2 http://www.livius.org/pi-pm/pliny/pliny_e.html
Просмотров: 361069 SciShow
Why Do Tornadoes Hate America?
 
03:49
On the 4th of July, Americans like to celebrate the things that make the United States unique, and a lot of those things have to do with our geography. That remarkable geography is also responsible for some pretty unique weather, and unfortunately for the millions of people living in the Midwest, that weather includes tornadoes. In this episode of SciShow, Hank explains why scientists think the U.S. is prone to so many tornadoes. 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/artist/52/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 References for this episode can be found in the Google document here: http://dft.ba/-6psA
Просмотров: 985121 SciShow
How to Make A Humanzee
 
03:55
We all know about inter species animal hybrids - Napoleon Dynamite's favorite animal, the liger, is a typical example. But could a human and our closest primate relative the chimpanzee also breed a living hybrid? Hank explores this ... delicate question in this episode of SciShow. 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/artist/52/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 References for this episode can be found in the Google document here: http://dft.ba/-6ptc
Просмотров: 940143 SciShow
Weird Places: Socotra
 
03:25
The Socotra archipelago in the Arabian Sea supports so many diverse and unique species that it has been described as the most alien place on Earth. Hank takes you on a tour of this weird place in this episode of SciShow. 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/artist/52/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 References http://www.iucnredlist.org/details/30428/0 http://www.nytimes.com/2007/03/25/travel/tmagazine/03well.socotra.t.html?pagewanted=all&_r=0 http://www.vanityfair.com/politics/on-the-road/2012/06/socotra-yemen-trees-drugs-pirates http://www.iucnredlist.org/details/33691/0 http://www.baobabs.com/Dorstenia_gigas_en.html http://www.socotraproject.org/index.php?page=content&id=7 http://whc.unesco.org/en/list/1263 http://www.arkive.org/dragons-blood-tree/dracaena-cinnabari/ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2664369/ http://titanarum.uconn.edu/199700044.html http://www.inaturalist.org/taxa/183828-Dendrosicyos-socotranus
Просмотров: 672518 SciShow
Resurrection Biology: How to Bring Animals Back From Extinction
 
10:28
We've all seen the movies and heard the hype: But is it really possible to bring back animals that have gone extinct? If so, how? And how soon? And can I have a mammoth to ride around in my backyard? Hank explains the latest research into resurrection biology, and ponders questions that include not only "Can we?" and "How do we?" but also: "Should we?" ----------- 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/artist/52/SciShow Or subscribe over at: https://subbable.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 Sources for this episode: http://www.nationalgeographic.com/deextinction/ http://bigstory.ap.org/article/russians-find-mammoth-carcass-liquid-blood http://phenomena.nationalgeographic.com/2013/03/19/your-de-extinction-questions-answered/ http://www.guardian.co.uk/environment/nature-up/2013/jun/07/deextinction-critics-scientific-american http://www.nytimes.com/2008/11/20/science/20mammoth.html?_r=1 http://longnow.org/seminars/02013/may/21/reviving-extinct-species/ http://science.howstuffworks.com/life/genetic/cloning-info3.htm http://www.nytimes.com/2013/03/19/science/earth/research-to-bring-back-extinct-frog-points-to-new-path-and-quandaries.html?pagewanted=all&_r=0 http://www.time.com/time/magazine/article/0,9171,1862459,00.html http://www.cdc.gov/flu/about/qa/1918flupandemic.htm http://www.biomedcentral.com/1741-7007/10/106
Просмотров: 770038 SciShow
Fairy Rings
 
03:36
Hank noticed something mysterious in the park one day. Fairy rings: are they mystical portals to another realm? Or could there be another, more scientific, explanation? Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Tardigrade Poster: http://vid.io/xom SciShow Mug: http://vid.io/xoa SciShow Shirt: http://vid.io/xog -- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Sources http://herbarium.usu.edu/fungi/funfacts/ringsfct.htm
Просмотров: 601542 SciShow
3 Big Discoveries Made by the International Space Station
 
04:02
We all know it's awesome, and we could watch Chris Hadfield sing all day, but do you know about the awesome science that's being done on the International Space Station? Hank explains three big discoveries made on the ISS that you should know about. 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/artist/52/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 Sources for this episode: ttp://www.space.com/20499-dark-matter-space-station-ams.html http://www.space.com/20490-dark-matter-discovery-space-experiment.html http://www.nasaspaceflight.com/2011/12/year-in-review-p3-iss-new-discoveries-living-space/ http://www.americaspace.com/?p=33895 http://www.tested.com/science/space/456617-science-experiments-international-space-station/ http://www.cnn.com/2013/04/04/world/europe/space-dark-matter http://www.nasa.gov/mission_pages/station/news/1year_crew_feature.html#.Ugf57xafoUU http://www.nasa.gov/mission_pages/station/research/pfms.html http://www.bbc.co.uk/news/science-environment-22016504
Просмотров: 475343 SciShow
Can You Burn Metal?
 
03:51
You know metal can get really hot, and you probably know that it can melt. But can it burn? Hank shows you how you can burn a hunk of metal like you're some kinda superhero (just be careful, please), and he explains how, in chemistry, "burning" means even more than you thought. Messages from our Subbable subscribers: Join us on Nerdcrafteria, the nerdfighter Minecraft server! IP:mc.nerdfighteria.com ----------- 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/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.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 Thanks Tank Tumblr: http://thankstank.tumblr.com Sources: http://www.popsci.com/diy/article/2008-06/let-burning-metals-lie http://www.popsci.com/diy/article/2007-10/burning-metal http://cldfacility.rutgers.edu/content/burning-magnesium http://chemistry.about.com/od/chemistryglossary/a/metaldef.htm http://www.sciencedaily.com/articles/m/metal.htm http://www.elmhurst.edu/~chm/demos/Chemmagnesium.htm http://adsabs.harvard.edu/abs/1961RSPSA.261..357H http://www.bbc.co.uk/bang/handson/steel_wool.shtml http://home.howstuffworks.com/plasma-cutter.htm http://home.howstuffworks.com/what-is-steel-wool-made-of.htm http://scienceline.ucsb.edu/getkey.php?key=2234
Просмотров: 1097619 SciShow
Rosalind Franklin: Great Minds
 
03:46
Rosalind Franklin was a British scientist who helped discover the structure of DNA, but you most likely haven't heard of her. Hank will attempt to fix this gap in your knowledge on today's SciShow: Great Minds. 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/artist/52/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 References for this episode can be found in the Google document here: http://dft.ba/-6pXV
Просмотров: 262932 SciShow
The 3 Coolest Things Built By Birds
 
03:53
There are a number of bird species that construct pretty cool things - today on SciShow, we'll visit with three of them... 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/artist/52/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 References for this episode can be found in the Google document here: http://dft.ba/-6lis
Просмотров: 430929 SciShow
Can You Really Be Scared to Death?
 
03:45
Can you literally "die of fright?" Turns out, you can! In this episode of SciShow Hank explores the mechanisms in your body that activate when you get scared, and how they can sometimes get out of hand. ---------- 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/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.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 Thanks Tank Tumblr: http://thankstank.tumblr.com Sources: http://www.scientificamerican.com/article.cfm?id=scared-to-death-heart-attack http://science.howstuffworks.com/life/scared-to-death.htm http://online.wsj.com/news/articles/SB10001424052970203400604578072900187957988 http://www.bostonmagazine.com/health/blog/2013/10/24/can-really-scared-death/ http://io9.com/5919137/the-science-of-being-scared-to-death http://articles.timesofindia.indiatimes.com/2010-12-06/hyderabad/28230672_1_horror-films-residential-school-student http://www.hopkinsmedicine.org/asc/faqs.html
Просмотров: 1166961 SciShow
How Is That Not Killing You?
 
04:04
When Hank watches nature documentaries he always comes away with one big question: how is that not killing you? In today's episode of SciShow he looks at three unusual ways that animals manage not to get killed by nature. 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/artist/52/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 References for this episode can be found in the Google document here: http://dft.ba/-6IJN
Просмотров: 1841955 SciShow
Can We Predict Earthquakes?
 
03:51
Hank talks about why it is so difficult for scientists to predict earthquakes in the short term. Like SciShow? http://www.facebook.com/scishow Follow SciShow! http://www.twitter.com/scishow T*mbl SciShow! http://scishow.tumblr.com References for this episode can be found in the Google document: http://dft.ba/-3waz
Просмотров: 226724 SciShow
The Agony of Motion Sickness
 
04:20
What happens when your senses come into conflict with each other? In this episode of SciShow, Hank talks about motion sickness: why we have this nauseating experience and how we can avoid it or treat it. ---------- 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/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.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 Thanks Tank Tumblr: http://thankstank.tumblr.com Sources: http://www.livescience.com/33771-animals-seasick.html http://www.popsci.com/science/article/2012-12/fyi-what-causes-motion-sickness-and-how-do-you-cure-it http://well.blogs.nytimes.com/2013/09/23/rethinking-motion-sickness/?_r=0 http://www.scientificamerican.com/article.cfm?id=motion-sickness-treatment http://adventure.howstuffworks.com/seasickness1.htm http://www.nytimes.com/2007/08/21/health/21real.html http://vestibular.org/understanding-vestibular-disorder/human-balance-system
Просмотров: 455398 SciShow
What is Sarin Gas?
 
03:56
Hank discusses the chemistry of sarin, the nerve agent that killed more than 1400 people in a chemical weapons attack in Syria. 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/artist/52/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 Sources for this episode: http://news.sciencemag.org/asiapacific/2013/08/backgrounder-clues-chemical-weapons-attack-syria
Просмотров: 714357 SciShow
Why Do We Burp and Fart (So Much)?!
 
03:23
We all do it, but why? Hank explains the whys and hows of our gaseous emissions. 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/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.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 Thanks Tank Tumblr: http://thankstank.tumblr.com Sources: http://discovermagazine.com/1995/apr/whatagas494#.Up61ocRDt4A http://news.yahoo.com/flying-increases-flatulence-sake-health-let-171100518.html http://www.mensfitness.com/training/lowdown-flatulence http://www.webmd.com/heartburn-gerd/tc/gas-bloating-and-burping-topic-overview http://www.nlm.nih.gov/medlineplus/ency/article/003080.htm http://www.nlm.nih.gov/medlineplus/gas.html http://patients.gi.org/topics/belching-bloating-and-flatulence/ http://digestive.niddk.nih.gov/ddiseases/pubs/gas_ez/ http://www.uptodate.com/contents/gas-and-bloating-beyond-the-basics?view=print Images: http://www.nlm.nih.gov/medlineplus/ency/images/ency/fullsize/19608.jpg http://www.nlm.nih.gov/medlineplus/ency/images/ency/fullsize/19651.jpg http://commons.wikimedia.org/wiki/File:Fart.svg http://www1.extension.umn.edu/food/farm-to-school/toolkit/promoting-food/img/NH_beans_print.jpg
Просмотров: 554355 SciShow
Animals That Do Drugs
 
03:58
Turns out humans aren't the only animals that can medicate themselves - many other animals have found ways to deal with illness by using natural remedies. Hank will tell you about some of the most interesting methods animals have found to heal themselves, and maybe get a little crazy in the process. This is the beginning of Season 2 of SciShow, and our 200th episode! We hope you like the new design elements! Special thanks go to Peter Winkler for all his awesome work on those. Like SciShow? http://www.facebook.com/scishow Follow SciShow! http://www.twitter.com/scishow T*mbl SciShow. http://scishow.tumblr.com References for this episode can be found in the Google document here: http://dft.ba/-3jro
Просмотров: 986398 SciShow
3 Weird Ways Olde Tyme People Got High
 
03:30
Humans have been processing plants for their narcotic effects for at least 5000 years, historically for ceremonial purposes, to deal with harsh environmental conditions or difficult situations, and sometimes even to supplement nutrient-poor diets. Michael tells you about some of the strange "natural" things our ancestors used to alter their minds, but he can't promise they're not going to be gross. Like SciShow? http://www.facebook.com/scishow Follow SciShow? http://www.twitter.com/scishow T*mbl SciShow. http://scishow.tumblr.com References for this episode can be found in the Google document here: http://dft.ba/-3WLw
Просмотров: 1564003 SciShow
The Apollo Lunar Lander (And How We Screwed It Up)
 
03:01
You called it, and we are grateful! Hank analyzes what went wrong with our intro, which gave us the perfect opportunity to talk about the awesomeness that is the Apollo Lunar Lander! ------------------ Messages from one of our subbable subscribers: Happy Birthday my love Mads m Hansen. From karikari -------------- 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/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.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 Thanks Tank Tumblr: http://thankstank.tumblr.com SOURCES: http://www.space.com/17411-apollo-11-moon-landing-explained-infographic.html http://www.nasa.gov/multimedia/imagegallery/image_feature_821.html http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1971-008C http://www.fi.edu/pieces/schutte/LMintro2.html http://science.howstuffworks.com/apollo-spacecraft6.htm http://www.lpi.usra.edu/lunar/missions/apollo/apollo_13/overview/
Просмотров: 344510 SciShow
Big Idea: Gunpowder
 
04:24
Chinese alchemists searching for an elixir of eternal life discovered the world's first chemical explosive. Hank has the full story on gunpowder in this SciShow about a big idea of science. Like SciShow? http://www.facebook.com/scishow Follow SciShow! http://www.twitter.com/scishow T*mbl SciShow. http://scishow.tumblr.com References for this episode can be found in the Google document here: http://dft.ba/-3Pbe
Просмотров: 279246 SciShow
Placebos & Nocebos: How Your Brain Heals and Hurts You
 
03:44
You've probably heard how some drugs and treatments make people feel better, even when they turn out to be fake. That's the placebo effect, but how does it work? And could the same effect backfire, causing your brain to make you feel sick when your body is not? Michael Aranda fills in for Hank and explains how these effects go beyond mere mind-over-matter. 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/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.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 Thanks Tank Tumblr: http://thankstank.tumblr.com SOURCES http://science.howstuffworks.com/life/placebo-effect.htm * http://phenomena.nationalgeographic.com/2009/10/15/the-placebo-effect-affects-pain-signalling-in-the-spine/ http://www.newscientist.com/article/mg21528812.300-evolution-could-explain-the-placebo-effect.html#.UmA9mdIqiSo http://www.theatlantic.com/health/archive/2011/09/the-dark-side-of-the-placebo-effect-when-intense-belief-kills/245065/ http://www.wired.com/medtech/drugs/magazine/17-09/ff_placebo_effect?currentPage=all http://blogs.smithsonianmag.com/science/2012/07/what-is-the-nocebo-effect/ http://www.nytimes.com/2012/08/12/opinion/sunday/beware-the-nocebo-effect.html?_r=0 http://www.npr.org/2012/01/06/144794035/one-scholars-take-on-the-power-of-the-placebo - Kaptchuk* http://www.placeboeffect.com/the-powerful-placebo/
Просмотров: 390231 SciShow