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The Late Movies: Tesla Coils Making Music

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Did you know that Tesla coils can be tuned and played together (under computer control) to make music? News to me. Judging from the sheer volume of YouTube videos showing Tesla coils in musical settings, this is a fairly popular hobby. Enjoy these ten songs -- and share your favorites in the comments!

"Dueling Banjos"

Listen for the little bits of "Yankee Doodle."

"Ghostbusters" Theme

Best YouTube commenter: "DON'T CROSS THE BEAMS!"

"Legend of Zelda" Theme

Includes Dr. Zeus, fluorescent light tubes, and balloons. Um. Wow.

"The Imperial March"

As performed by ArcAttack, one of several popular Tesla coil groups.

"House of the Rising Sun"

The coils appear only to play the lead lines; I hear backup instruments in there too.

"Super Mario Bros." Theme

This is the aboveground theme. You might also enjoy the dungeon theme.

"Back to the Future" Theme

Great Scott!

"Dr. Who" Theme

Hey, those do look a little like Daleks.

"Fade to Black"

Just playing some Metallica in the garage. This one ends well.

"Toccata and Fugue in D Minor"

Bach would be proud.

What Did I Miss?

Post your favorite crazy Tesla coil music in the comments. There's a LOT of this out there.

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Belly Flop Physics 101: The Science Behind the Sting
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Belly flops are the least-dignified—yet most painful—way of making a serious splash at the pool. Rarely do they result in serious physical injury, but if you’re wondering why an elegant swan dive feels better for your body than falling stomach-first into the water, you can learn the laws of physics that turn your soft torso a tender pink by watching the SciShow’s video below.

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iStock // lucamato
What's the Saltiest Water in the World?
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iStock // lucamato

Saltwater is common around the world—indeed, salty oceans cover more than two-thirds of the globe. Typical saltwater found in our oceans is about 3.5% salt by weight. But in some areas, we find naturally occurring saltwater that's far saltier. The saltiest water yet discovered is more than 12 times saltier than typical seawater.

Gaet’ale is a pond in Ethiopia which currently holds the record as the most saline water body on Earth. The water in that pond is 43.3% dissolved solids by weight—most of that being salt. This kind of water is called hypersaline for its extreme salt concentration.

In the video below, Professor Martyn Poliakoff explains this natural phenomenon—why it's so salty, how the temperature of the pond affects its salinity, and even why this particular saltwater has a yellow tint. Enjoy:

For the paper Poliakoff describes, check out this abstract.


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