This aluminum egg is called a phi top, and when you spin it, it stands on end. According to the Action Lab Man, “This is the same procedure that [Nikola] Telsa applied to a copper egg in his famous Columbus egg demonstration.”
If you don’t have an aluminum egg on hand, an egg laid by a hen that has been hardboiled will do the trick. (In fact, this is a good way to determine if an egg is raw or boiled.)
Image: YouTube
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mark frauenfelder
Mark Frauenfelder is the founder of Boing Boing and the founding editor-in-chief of MAKE. He is a research director at <a href="Kevin J. Anderson has written more than 125 books, including 52 national or international bestsellers. He has over 23 million books in print worldwide in thirty languages. He has been nominated for the Nebula Award, Bram Stoker Award, Shamus Award, and Silver Falchion Award, and has won the SFX Readers' Choice Award, Golden Duck Award, Scribe Award, and New York Times Notable Book; in 2012 at San Diego Comic Con he received the Faust Grand Master Award for Lifetime Achievement. He is a research director at Institute for the Future and editor-in-chief of Cool Tools and co-founder of Wink Books. Twitter: @frauenfelder.
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