Physics

How to Shrink a Quarter with Electricity

How an 8000V electromagnet can be used to shrink a quarter. The interplay between electric and magnetic forces leads to the Lorentz Force and Faraday’s law of induction which can be used to shrink a quarter, or any other type of metal coin.

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Check out the singing tesla coils on It’s Okay to Be Smart:

Exploding Can Video:

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Creator: Dianna Cowern
Animator: Kyle Norby

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Resources:
Capturedlightning.com
http://www.hackerbotlabs.com/
Hackerbot Labs and Intellectual Ventures Coin Shrinking High Speed Videos:
https://www.youtube.com/watch?v=gs51nH46F-g

Levitating Frog with Magnet:
http://www.ru.nl/hfml/research/levitation/diamagnetic/

Music: APM and YouTube
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“Fishes Waltz”
Built Together – “Soundscape”
Built Together – “Marimba”
“On the Bach” (YouTube)

Sound Effects: APM and Apple

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