Paper Towel vs Hand Dryers

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Dec 022014
 

Which is better, paper towels or hand dryers? Asap Science explains that paper towels have the upper hand for cleaning bacteria off our hands. But dryers may be better for the environment. So the choice depends on whether you are a cleanly Conservative or a dirty Hippy Liberal. I’m just saying!

There’s a lot of debate about which method of drying your hands is actually the most clean. This video explores the benefits of both and explains which one actually helps keep your hands the most clean.

Around 80% of infectious diseases are spread with our hands—so washing regularly with soap and water is very important—but does the way you dry hands matter? YouTube channel AsapSCIENCE compares paper towel drying with hand dryers to see the effects of both. It turns out that paper towels are a little more effective for two reasons: timing and friction. Using paper towels can be wasteful, though, so if you plan to use them, keep this trick in mind for maximum efficiency.

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Paper Towel vs Hand Dryers

 

“Hot” For Turkey

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Nov 242014
 

A scientific look at how female Turkeys choose their mates.

Enjoy!

With its fanned plumage and bold strut, a male wild turkey’s display conjures images of Americana and festive feasts. But this grandstanding isn’t intended for human eyes – it’s for female turkeys who actually use it to discern a male’s genetic prowess. How exactly she parses his performance to pick her suitor can be a fairly complex enterprise but thanks to the research of Dr. Richard Buchholz of the University of Mississippi, we have some clues as to what a female turkey finds “hot” in a male.

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Hot for Turkey

 

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What Happens After You Flush?

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Nov 192014
 

Hank Green of Sci Show explains everything that happens when you flush the toilet in this extended educational video.

Humans have always peed and pooped, but where it goes after we’ve done our business has changed a lot. In fact: The water you just drank may well have been a part of someone’s urine just weeks ago! SciShow explains!

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Why Is Ketchup So Hard To Pour?

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Nov 182014
 

You learn something new everyday!

Ever go to pour ketchup on your fries…and nothing comes out? Or the opposite happens, and your plate is suddenly swimming in a sea of red? George Zaidan describes the physics behind this frustrating phenomenon, explaining how ketchup and other non-Newtonian fluids can suddenly transition from solid to liquid and back again.