Why Can’t I Put Metal in the Microwave?

We know we’re not supposed to put metal in the microwave, but why? We don’t microwave silverware but what about Hot Pocket wrappers? They have metal on the inside. How does that work? Let Michael Aranda explain.

Artichoke - Mary Anning
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To go along with our Great Minds video on Mary Anning, here’s a facty jam about the lady by the excellent band Artichoke.

Great Minds: Mary Anning, “The Greatest Fossilist in the World”

Learn about Mary Anning, one of England’s most important contributors to the field of paleontology (and check out our entire playlist of Great Minds episodes!). 

What would happen if you microwaved a person?

They would get warm…and then hot…and then very hot…and then they would die. But if you only zapped them for a few seconds…it would just feel like a pleasant warming sensation. Unlike heating through infrared radiation (which is how the sun or a fire would heat you) microwave radiation would heat you from the inside, areas where you have more water stored like muscles and fat would warm fastest. My grandfather served in the Korean War and he once told me that they’d actually stand in front of microwave antennas to warm themselves on wet, cold nights. He lived to be 92 years old so…I guess it’s not /always/ dangerous. 

-Hank

Blue Whales and The Smartphone Morality Experiment

Hank shares news about the biggest animal in the history of ever — blue whales — and explains the lessons learned in a new study of human morality, using smartphones.

Have any of you ever had the privilege of seeing an aurora? If you’re on one of the more northy bits of the globe, tonight might be your night!

Gynandromorphs: Dual-Sex Animals

SciShow explores one of the more rare and unusual results of sexual reproduction: gynandromorphy, in which an animal is part male and part female.

Why Is My Poop Green?

One of the most commonly googled questions in the world is why can feces be green. Well, Quick Questions has the answer!

Do you like SciShow? Do you like answering slightly strange questions? Do you have 5 free minutes? If you answered yes to any or all of these qs, we’d love for you to take our survey. We’re going to be teasing out the data we collect from it in fun ways on future SciShow episodes!

What causes a computer monitor to stop working when it is exposed to a magnet???
Well, first off, today’s LCD computer screens won’t get messed up by magnets (unless they’re EXTREMELY STRONG). But CRT (cathode ray tube) monitors can get messed up by magnets. Those more boxy screens work by firing electrons extremely precisely at millions of tiny phosphorescent dots. Hit the green one…green light…the red one…red light…hit the blue one…blue light. Pretty remarkable that we figured out how to turn that system into 50 years of color TV. 
So, as you probably have guessed by now…electrons (being negatively charged) are affected by magnets. If you plop a magnet onto a CRT screen, it will either attract or repel the electrons, distorting the image. It’s pretty cool to watch. Less cool, though, is that the film behind the class can actually get permanently magnetized by a magnet, resulting in the screen becoming permanently distorted. So don’t do that unless  you don’t care about your monitor anymore. 
Today’s LCD screens don’t have any flying beams of electrons for magnets to distort…but they’re still very cool.
-Hank