9GAG - Just for Fun! Le site des mauvais films sympathiques. Vidéos Buzz, Drôles, Insolites sur Spi0n.com. Franck lepage. Euler's Disc. Euler's Disc is a fascinating physics demonstration that mesmerises everyone that sees it. The base is a slightly concave mirror. There is then a heavy metal disc, which you place on the mirror, and spin. What happens then? Well, just like spinning a coin on a table, the disc both spins and rolls, until it comes to a sudden stop, the final stages being accompanied by a sound of increasing frequency. A coin spun on a table will not spin for all that long. 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. Packed in a smart presentation box.
Euler is pronounced 'Oiler' by the way. Made in Taiwan. Donkey Kong. The Daily What. I Am Bored - Sites for when you're bored. EPIC FAIL Funny Videos and Epic Fail Funny Pictures.