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Author Topic: magnetic top  (Read 2802 times)

jim in paris

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magnetic top
« on: September 21, 2011, 12:03:35 PM »
hi all
a short sequence filmed last weekend in a park where Ludo and I were doing demos with a stand /display of tops during the city festivities... good gig, we met an Indian family there: woman , man, grand pa and children could all spin tops with ease ; they were from Pondicherry

magnetic top action
i tried to catch it with a spinning DT giulia, but no success
a problem of polarity maybe , or it spins too fast to grab



jim
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ta0

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Re: magnetic top
« Reply #1 on: September 21, 2011, 02:57:07 PM »
Looks like a very nice setting for the demos.

The tip of the Giulia is only slightly magnetic while the magnet of the Magnetop is weak: that is why you did not have success.  Stainless steel generally is not very magnetic. I just tested several other tips with a neodymium magnet. I was somewhat surprised that the tips of the Mexican tops are quite magnetic. On the other hand, the latest steel tips I made are not magnetic at all (I forgot the alloy number, but I chose it for maximum ease of turning).
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the Earl of Whirl

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Re: magnetic top
« Reply #2 on: September 21, 2011, 09:36:54 PM »
Neat. 

Are any of your daughters in the background?  It has been so long since I saw them I don't think I can recognize them.
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ta0

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Re: magnetic top
« Reply #3 on: September 21, 2011, 11:23:14 PM »
Quote from: Mike Hout on September 21, 2011, 09:36:54 PM
Neat. 

Are any of your daughters in the background?  It has been so long since I saw them I don't think I can recognize them.

Ha! Even two years ago they had already grown up quite a bit:

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the Earl of Whirl

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Re: magnetic top
« Reply #4 on: September 22, 2011, 03:52:53 AM »
Yes, they look a little bit different than when I saw them getting ready to go hear the group Tokio Hotel. 

Nice picture.  Good looking family!
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