Rogue Planets, Loners of the Universe

Meet one of the newest celestial bodies to be discovered: rogue planets, worlds that hurtle around the galaxy without any parent star. Caitlin Hofmeister explains how we found them, and where we think they might have come from.

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Do Women Have Adam’s Apples?

Quick Questions takes on the matter of the adam’s apple — The fact is, everyone has one! Learn what it really is, what its purpose is, and why they might look different in different people.

Horseshoe Crabs Saved My Life 

Horseshoe crabs aren’t really crabs, but they are super old, super cool, and they deserve your respect. Because they may have already saved your life. SciShow explains!

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Scenes from "The Animated Life of A.R. Wallace."

A cool and pretty little video about Alfred Russel Wallace, who co-discovered natural selection along with Charles Darwin.

What Happens If You Go Without Water?

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.

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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

What Is Wind?

We all know that warm air rises, but how does this scientific fact influence our weather and create those flows of air molecules that we know of as wind? In this episode of SciShow, Hank explains where wind comes from, what factors influence it, and how fast it can go!


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Looking for SciShow elsewhere on the internet?
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Sources:
http://www.universetoday.com/82329/what-causes-wind/
http://atmo.tamu.edu/weather-and-climate/weather-whys/683-what-causes-wind
http://www.metoffice.gov.uk/learning/wind/what-causes-wind
http://www.iowaenergycenter.org/wind-energy-manual/wind-and-wind-power/what-causes-wind/
http://www.srh.noaa.gov/jetstream//synoptic/wind.htm
http://science.nationalgeographic.com/science/earth/earths-atmosphere/wind/
http://www.atmos.illinois.edu/earths_atmosphere/wind_formation.html
http://www.scientificamerican.com/article.cfm?id=where-does-wind-come-from

5 AMAZING FACTS ABOUT BABIES

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.


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Human Experimentation: The Good, The Bad, & The Ugly

In the early days of the space race, agency researchers in Russia and at NASA really weren’t sure all what would happen to an astronaut in space. They didn’t know if a human mind could handle actually seeing Earth or what would happen to the human body when exposed to long periods of weightlessness. Would their blood forget which way to pump? Would their eyeballs shift or their inner ears wig out? They sent up mice and monkeys and dogs, to see what happened, and in 1961, the Russians strapped a man to a rocket headed for orbit. Yuri Gagarin was the first person in space. The ultimate human guinea pig, he survived, becoming an international hero.


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Why Body Hair?

In today’s episode Hank talks about hair: What’s it good for, what’s it made of, and why do we have less than other mammals?

Why Do We Laugh?

You know what’s funny? Why people laugh. Hank talks about the science of laughter: what makes us laugh, what purpose it serves, and even what it can tell us about our mental and physical health. Hilarious!