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Dangerous High-speed Magnetic Levitation

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See http://amasci.com/maglev/magro... EM repulsion lifts a neodymium magnet above two spinning copper pipes. Also see http://www.youtube.com/watch?v... I bought my supermagnets from Mr. George "magnetman," also from wondermagnet.com. The pipes are thick-wall schedule-80 copper pipes from the scrap bin at Alaskan Copper and Brass. The motor is a replacement sewing machine motor from Grainger catalog. Speed control is a 1000-watt triac lamp dimmer.

Channel: Science & Technology
Uploaded: February 11, 2007 at 7:45 am
Author: wbeaty

Length: 03:25
Rating: 4.63
Views: 481615

Tags: amasci  levitation  maglev  magnetic  neodymium  physics  science  supermagnets  

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Video Comments

disturbedone5009 (August 28, 2008 at 10:39 pm)
if you had a larger magnet mounted on the table and the copper cylinders above it would it levitate the cylinders?
CommonRaven (August 26, 2008 at 1:54 am)
Maybe when I get back to the 'States. Here in Japan, if you are not around Tokyo it's real hard to get anything machined or find the proper materials, and what you can find is impeded by the language barrier when you need to ask specific questions. =-Dgreat vids though!
wbeaty (August 25, 2008 at 7:38 pm)
> copper tubes on a non-metallic extensionGreat idea! Or SS bearings, or bronze. But my goal is to create sci-fair projects or just to trigger curiosity, so if anyone wants to know what happens, THEY'LL have to build one. If I refuse to use up all the fun myself, lots of stuff remains which has never been done by anyone, ever. Go and be the first. (Well, I did do a brief crude expt with the whole device upside-down. Someone needs to do a better version.)
CommonRaven (August 25, 2008 at 1:02 pm)
Curious... if you fixed the copper tubes on a non-metallic extension at either end and ran the bearings on that, you could potentially eliminate the magnetic field being 'sucked up' and achieve the balancing effect you talked about. The cylenders would have to be balanced, the only real effective way I can think of is demonstrated by the ceramic beads used to balance motorcycle tires from the inside... ohh brainstorm- having a had time finding words hehe.another awesome vid.
CommonRaven (August 25, 2008 at 12:56 pm)
American.
Windwolf001 (August 24, 2008 at 10:52 pm)
And I can imagine new transport ways that won't depend on oil.
lemuelbecc (August 24, 2008 at 5:00 am)
You sir are rather ingenius. I've been looking around your website for years, I look forward to watching your videos.
UGoTDZeZ (August 23, 2008 at 10:24 pm)
why is the first thing you think of when you see this is to improve firearms? are you american?
playerjjo (August 23, 2008 at 1:47 pm)
when I see this thing I can't help thinking of building a non friction barrel for weapons
TaintedMojo (August 22, 2008 at 11:05 pm)
Foucalt currents FTW.

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