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Euler's Disc

(Code: 338)
£ 33.00
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Euler's DiscEuler'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, by contrast, spins for a long time before coming to rest. In addition, there are a number of magnetic holographic decals that you can attach to the upper side of the disc to enhance the effect of the spinning action. The best thing really is to watch the video. It is a lot of fun showing this to someone who has not seen it before. The ending is really spectacular. It also has a spectacular name - a finite-time singularity!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.Packed in a smart presentation box.Euler is pronounced 'Oiler' by the way.Made in Taiwan

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Customer reviews
Produit de qualité
c'est exactement,ce à quoi je m 'attendais!
Karen b.
Bernard Brysens Review collected by Feefo
Douglas Lecocq Review collected by Feefo
Janice Gochnauer Review collected by Feefo
Arnaud Bongard Review collected by Feefo
Bought as a Christmas gift. This item is expertly made and works perfectly.
Bethany Graham Review collected by Feefo
C'est aupr??s de GRAND ILLUSION que j'ai trouv? le prix le plus int?ressant.
Philippe Carr??? Review collected by Feefo
Very fun and fun and fun.
Toru Otsuka Review collected by Feefo
Just as discribed work great.
Andy Stevens Review collected by Feefo
Eulers's Disk is nogal duur voor wat je er voor krijgt.

Werkt niet altijd naar behoren, opplak/magneet stukjes schuiven scheef bij draaien.
Thomas de Jong Review collected by Feefo