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Videos uploaded by user “SciShow” for the 2013
What Happens When You Stop Eating?
 
04:48
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
Views: 1481096 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
Views: 1452667 SciShow
Why Do We Kiss?
 
04:00
Hank gets all up in your face about kissing -- where does it come from, why do it we do it, and do other animals do it? From ancient India to that date you were on last night (which we won't tell anyone about if you won't), we explore the history of snogging and its role in human 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 Sources for this episode: http://news.discovery.com/history/history-of-kissing-130214.htm http://www.nytimes.com/2006/04/06/fashion/thursdaystyles/06kiss.html?_r=0 http://www.livescience.com/32464-why-do-people-kiss.html http://www.nypost.com/p/news/opinion/books/birds_don_kiss_it_bees_don_do_it_NmFi5KYTOqDbgoPNf3h7UO/1 http://news.nationalgeographic.com/news/2009/02/090213-valentines-day-kissing.html http://people.howstuffworks.com/kissing.htm http://www.psychologytoday.com/blog/let-their-words-do-the-talking/201212/odd-facts-about-kissing http://www.cnn.com/2009/HEALTH/02/13/kissing.science/
Views: 1742681 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
Views: 1463576 SciShow
Space Trash: The Next Big Pickle
 
03:07
Earth's orbit has a bit of a litter problem. Hank outlines a few ways scientists have thought of to help clean things up. 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 in the Google document here: http://dft.ba/-5y0V
Views: 248300 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:
Views: 687079 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
Views: 1268950 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
Views: 1725304 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/
Views: 1059663 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
Views: 346319 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
Views: 1726165 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
Views: 876315 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
Views: 968686 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
Views: 1152885 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
Views: 640151 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
Views: 580458 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]
Views: 875655 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
Views: 927514 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/
Views: 727453 SciShow
What Color is Your Blood?
 
04:10
What color is your blood. Red, right? Well, actually, yes. So why does it look blue when you see it through your skin? And is everyone's blood always the same color red (spoiler: no)? Do all animals have red blood ('nother spoiler: no!)? And why is red blood red anyway? Hank gives you the facts on vampires' favorite beverage. ----------- 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://omlc.ogi.edu/spectra/hemoglobin/ http://www.biology-online.org/biology-forum/about89.html http://scienceline.ucsb.edu/getkey.php?key=2927 https://www.imt.liu.se/edu/courses/TBMT36/pdf/blue.pdf http://science.howstuffworks.com/life/human-biology/blood.htm http://www.livescience.com/32212-if-blood-is-red-why-are-veins-blue.html http://newswatch.nationalgeographic.com/2013/07/10/blue-blood-helps-octopus-survive-brutally-cold-temperatures/ http://newswatch.nationalgeographic.com/2013/09/30/why-do-mysterious-lizards-have-green-blood/
Views: 1119655 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
Views: 422871 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
Views: 801600 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
Views: 575225 SciShow
What's The Oldest Tree in the World?
 
03:33
Ancient trees are fascinating, but the answer to the question in the title isn't as cut and dried as it might first seem. There are two major contenders for the superlative, and Hank has all the important information on both of them in this episode of SciShow. Which one would you give the title to? 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/-5RCC
Views: 891998 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
Views: 1241857 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/
Views: 867731 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
Views: 559945 SciShow
How to Make the World's Simplest Motor: SciShow Experiments
 
03:42
Hank builds a simple electric motor just powerful enough to make a small screw spin, but also strong enough to blow your mind. Like SciShow? http://www.facebook.com/scishow Follow SciShow! http://www.twitter.com/scishow T*umbl SciShow. http://scishow.tumblr.com References http://www.evilmadscientist.com/2006/how-to-make-the-simplest-electric-motor/ http://io9.com/5890116/create-your-own-version-of-the-worlds-earliest-electric-motor http://www.exo.net/~pauld/activities/electric/homopolarmotor.htm http://www.kjmagnetics.com/blog.asp?p=homopolar-motors http://www.grand-illusions.com/articles/homopolar_roller/Stewart-homopolar-roller.pdf http://www.stevespanglerscience.com/experiment/homopolar-motor-sick-science
Views: 383602 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
Views: 505807 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
Views: 1820495 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
Views: 2031314 SciShow
IDTIMWYTIM: "Organic"
 
04:24
In the world of chemistry, an "organic" compound is often described as anything with carbon in it, and "organic chemistry" is the study of carbon compounds, but there is actually no single definition of what "organic" means in chemistry, and scientists have been arguing about it for a long time. In this edition of "I Don't Think It Means What You Think It Means," Hank does his best to illuminate the confusion so we can better understand what "organic" means (or doesn't mean) to chemists. 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 -- SciShow elsewhere on the internet: http://www.facebook.com/scishow http://www.twitter.com/scishow http://scishow.tumblr.com
Views: 388093 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
Views: 698679 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
Views: 1362387 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
Views: 636833 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
Views: 549211 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
Views: 451091 SciShow
Twins x Twins = Twins?
 
02:58
At SciShow, we ask the tough questions. Today we explore the answer to the question "if identical twin brothers married identical twin sisters, would their offspring be identical?" Like SciShow: http://www.facebook.com/scishow Follow SciShow: http://www.twitter.com/scishow T*mbl SciShow: http://scishow.tumblr.com References http://www.abc.net.au/science/articles/2009/05/18/2573698.htm http://en.wikipedia.org/wiki/Meiosis
Views: 532529 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/
Views: 386164 SciShow
Why Ferns Have More Chromosomes Than You
 
03:49
Chromosomes are fascinating little things, and today, Hank explains why more of them doesn't mean more complex, and why different organisms have different numbers of chromosomes. The short answer: mistakes happen. 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
Views: 281795 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
Views: 919087 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
Views: 698350 SciShow
Exotic Chemistry: World's Oldest Water and The Rarest Element
 
04:12
This week's SciShow news brings you discoveries involving two of the most exotic substances on Earth - the world's rarest element and the world's oldest water. Two great tastes that taste great together? Stay tuned to find out. 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.nature.com/ncomms/index.html http://www.nature.com/ http://www.nerc.ac.uk http://www.lancs.ac.uk
Views: 541467 SciShow
What Happens If You Go Without Water?
 
03:47
Sorry! This is a re-upload of an episode that went live earlier today. Thank you to all the fans of SciShow who helped us out by pointing out an error in the original upload and thank you for bearing with us and understanding that these kinds of things do happen from time to time! Ever wondered what happens to your body if you don't get enough water? Our bodies are mostly water by weight, so in today's episode of SciShow Hank explains what happens to your body as it starts to shut down when you go without that tasty H2O. ----------- 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=football-water-weight-loss http://www.mayoclinic.com/health/dehydration/DS00561/DSECTION=symptoms http://www.hydration.net.au/page/shop/info_page/a/infopage_id/e/46 http://www.dummies.com/how-to/content/why-your-body-needs-water.html http://www.menshealth.co.uk/food-nutrition/drink-recipes/fight-the-six-stages-of-dehydration-347578 http://www.bodybio.com/content.aspx?page=elyte-electrolyte-101 http://www.forbes.com/fdc/welcome_mjx.shtml http://www.nlm.nih.gov/medlineplus/ency/article/003281.htm http://health.howstuffworks.com/wellness/diet-fitness/information/question565.htm http://www.popsci.com/science/article/2011-03/fyi-it-ever-ok-drink-your-own-urine
Views: 561056 SciShow
Facts About Fracking
 
04:32
Hank gives us a summary of the important facts about fracking: what it is, why we do it, and how it actually isn't all butterflies and cupcakes. Like SciShow? http://www.facebook.com/scishow Follow SciShow! http://www.twitter.com/scishow T*mbl SciShow. http://scishow.tumblr.com References http://www.naturalgas.org/overview/background.asp http://topics.nytimes.com/top/news/business/energy-environment/natural-gas/index.html?8a http://www.newyorker.com/talk/comment/2011/12/05/111205taco_talk_kolbert http://www.technologyreview.com/news/508151/studies-link-earthquakes-to-wastewater-from-fracking/ http://www.ldeo.columbia.edu/news-events/seismologists-link-ohio-earthquakes-waste-disposal-wells
Views: 504157 SciShow
The Terrifying Truth About Bananas
 
04:06
Hank loves bananas and is worried about their future, so he did some investigating and wrote this episode of SciShow to share some kinda scary banana truths with us. 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/-6uzR
Views: 6247430 SciShow
Starfish Eyes, Octopus Blood, and Human Evolution in Action
 
05:03
You're probably aware that nature has come up with some pretty fascinating animal adaptations over the millennia, and in general, the stranger the adaptation, the more important it is to that organism. Today on SciShow News, Hank has some new discoveries about weird adaptations to report on (including one in humans!), along with the reasons they evolved the ways they did. 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 https://en.wikipedia.org/wiki/Visual_system http://www.sebiology.org/
Views: 350674 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
Views: 277051 SciShow
The Science of Hyperloop
 
03:29
Michael Aranda explains the nuts and bolts of Hyperloop, the new magnet-driven, solar-powered transit system proposed by Spacex genius Elon Musk. Learn how Musk answered three vexing questions to create the transportation of the future -- or maybe the transportation of Futurama. 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.spacex.com/sites/spacex/files/hyperloop_alpha-20130812.pdf
Views: 319397 SciShow
How To Make Antivenom
 
04:36
Bitten by a venomous snake? There's hope! French scientist Albert Calmette developed the first snake antivenom in the late 1890s, and did such a good job that we use his technique to this day. Antivenom works by stimulating the production of antibodies which can smother venom's toxic effects, preventing spread and rendering them harmless. But how do you make it? Well, stay tuned to this episode of SciShow to find out. 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/-5FF8
Views: 894637 SciShow