really float a card with magnets! homemade!

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really float a card with magnets! homemade!

Postby seymourmagic » Oct 26th, '12, 19:15



The following is a link you may find very interesting I know I did.......
http://www.youtube.com/watch?v=TpEvqfl- ... re=related" target="_blank" target="_blank" target="_blank
if you like this please reply, I may post other cool thimgs, thanks

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Re: really float a card with magnets! homemade!

Postby Pickman » Oct 27th, '12, 01:31

Isn't that a spoof video? I thought only superconductor magnets could float things in that way and they need to be cooled in liquid nitrogen first. I'm no scientist, so I may be wrong but it looks suspicious to me.

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Re: really float a card with magnets! homemade!

Postby seamagu » Oct 27th, '12, 07:02

hmmmm...

He probably used the scissors to cut the string to the right length :-)

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Re: really float a card with magnets! homemade!

Postby seymourmagic » Oct 27th, '12, 17:43

Sorry if that link was a spoof, I didnt know, this is a real effect float anything under 12 oz magnetically, im thinking of getting one of these! the levitator
http://www.youtube.com/watch?v=tEu5Qkqw ... re=related" target="_blank

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Re: really float a card with magnets! homemade!

Postby Mandrake » Oct 27th, '12, 17:50

Pickman wrote:Isn't that a spoof video? I thought only superconductor magnets could float things in that way and they need to be cooled in liquid nitrogen first. I'm no scientist, so I may be wrong but it looks suspicious to me.


Maglev systems ( see http://en.wikipedia.org/wiki/Maglev ) use magnetic fields to 'float' two or more small train carriages containing people. Having been on the one used at Birmingham Airport many times when it was in operation, I can attest to the fact that it worked very well indeed. The whole thing floated above a single track on a magnetic field and by adding a magnetic 'push' travelled to the other end of the track. Probably used something more powerful than a few neos though!

I'm still not sure why the copper wire coil and aluminium foil are being used, neither are magnetic so won't influence the magnetic field - if there is one.

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Re: really float a card with magnets! homemade!

Postby MiKo » Oct 28th, '12, 07:57

Mandrake wrote:
I'm still not sure why the copper wire coil and aluminium foil are being used, neither are magnetic so won't influence the magnetic field - if there is one.

I would say that the cools are there as electromagnets (you pass electricity through them and you get an electromagnetic field) I hated my physics exams, though, so maybe Tomo can have a clearer answer.

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