Electronic Levitron...How the heck does this thing work?

[Pirate88179]

https://www.youtube.com/watch?v=BC0AZWXk224

Another type built by some UBC physics students it appears.

Bill


http://www.google.com/patents/US7348691#v=onepage&q&f=false

Above is the patent that they ref.

[Pirate88179]

https://www.youtube.com/watch?v=RDvH76Cj-UY

MIT open courseware showing how to levitate a coil of aluminum wire 3" over an aluminum plate using Lentz's law.  This appears to use a lot of power though.

Bill

[Nink]

https://www.youtube.com/watch?v=RDvH76Cj-UY

MIT open courseware showing how to levitate a coil of aluminum wire 3" over an aluminum plate using Lentz's law.  This appears to use a lot of power though.

Bill

Put 110v into a coil and place over joining corners of 4 aluminium plates
https://www.youtube.com/watch?feature=player_detailpage&v=azsqhKg8hX8#t=254
Similiar to 4 corners of diamagnetic pyrolytic graphite and 4 neo magnets
https://www.youtube.com/watch?v=yFX_O8Q8qto

[Lakes]

The induction current type levitating an aluminum plate uses a lot of power and things can get really hot quickly!
https://www.youtube.com/watch?v=txmKr69jGBk

Which is why I much prefer this hall effect/magnet system which uses less power.

Btw, the "Levitator Prototype 1 "rotating crystal display was awesome!

This system using an arduino and a H Bridge is (I would guess) probably the one that Tk will be using.
https://www.youtube.com/watch?v=qS1cdUzFX8M

[TinselKoala]

I like this one, from the same maker as the Arduino one above, but not using Arduino I think:

http://www.youtube.com/watch?v=JQypYoDSFrA

The sphere magnet doesn't want to flip over!