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Rotop: A magnetically controlled Spinning Top

This spinning top acts out of the norm
Author: Prof. Ioan Grosu, Iasi, Romania, [email protected]
Online since: 24/03/2008, Number of visits: 298394
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A normal spinning top is modified by attaching a small S-03-01-N disc magnet to its axis. A larger S-10-05-N disc magnet is held in hand and moved over the top (without touching it). The horizontal direction that the top moves in can be altered by the larger magnet.
In the film: a manipulated top in the form of a hexagon collides with a rubber ball.
The manipulated top collides with a glass marble.
Two manipulated tops collide into each other. They will often then collide several times due to the Bernoulli Effect.
Further information about the project can be found on the following website: http://drivenspinningtop.blogspot.com/.
Professor Grosu (shown in the photo at the Inventor's Convention in Geneva) is looking for a partner to develop a commercial use for his invention. He can be contacted via e-mail (in English) at [email protected] and at [email protected].

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S-03-01-N Disc magnet Ø 3 mm, height 1 mm, holds approx. 190 g, neodymium, N48, nickel-plated
S-03-01-N
Disc magnet Ø 3 mm, height 1 mm, holds approx. 190 g, neodymium, N48, nickel-plated
S-03-01-N Disc magnet Ø 3 mm, height 1 mm, holds approx. 190 g, neodymium, N48, nickel-plated
20 pcs. 0,25 EUR ea.*
from 60 pcs. 0,20 EUR ea.*
from 140 pcs. 0,18 EUR ea.*
from 360 pcs. 0,15 EUR ea.*
Ask for a rebate from 1 300 pcs.
Available: 217 560 pcs.
Bestseller icon S-10-05-N Disc magnet Ø 10 mm, height 5 mm, holds approx. 2,6 kg, neodymium, N42, nickel-plated
S-10-05-N
Disc magnet Ø 10 mm, height 5 mm, holds approx. 2,6 kg, neodymium, N42, nickel-plated
Bestseller icon S-10-05-N Disc magnet Ø 10 mm, height 5 mm, holds approx. 2,6 kg, neodymium, N42, nickel-plated
5 pcs. 0,88 EUR ea.*
from 15 pcs. 0,77 EUR ea.*
from 40 pcs. 0,68 EUR ea.*
from 80 pcs. 0,63 EUR ea.*
Ask for a rebate from 650 pcs.
Available: 96 505 pcs.
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