The Kid Should See This

Euler’s Spinning Disk

We love this video of Euler’s (sounds like Oiler’s) Spinning Disk, not only because of the physics behind how long it spins on the slightly concave mirror base, but also because of the intense, hypnotic sound it makes, especially toward the end.

Euler’s Disc was invented by Joseph Bendik in the 1980s, while he was working for an aerospace firm in California, and spinning coins on the cafeteria table. He named it after Leonhard Euler, a Swiss mathematician and physicist who lived from 1707 to 1783, and who did some of the pioneering work on spinning and rolling objects.

Want to watch it again? You can enjoy Euler’s Spinning Disk demonstrations both in French and with a British accent, too.

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