Electronics > Projects, Designs, and Technical Stuff
1000000 RPM magnet video - would like the schematic!
Yansi:
Least amount of components to implement an (unfortunately) inverting voltage amplifying gate driver, that does not go into cross conduction during a transition.
james_s:
If you're gonna try to spin anything up to a million RPM you'll want to set up a very sturdy blast shield. Even a tiny magnet spinning that fast will be dangerous, the forces created by the rotation will be tremendous and if it breaks up you will have a shower of potentially supersonic tiny little bullets.
applicanon:
James,
if you watch the video, there is a magnet explosion which occurs and is shown! Yes, the centrifugal force upon the magnet literally ripped the magnet to shreds!
Very dangerous indeed.
Jwillis:
I had a toy a few years ago that consisted of a magnetic top that opposed a magnetic base. If you got the base perfectly level the top would spin and levitate . I wonder its you could do the same thing here by making your winding perfectly level. It sure looks like the ball wanted to levitate at the centre of the coil. Of course your coil would have to be perfectly round . Or as near as prefect as you could get.
RoGeorge:
That toy is called Levitron.
Levitron arrangement is a very clever way to circumvent the Earnshaw's theorem, which roughly says a magnet can not be made to levitate using only magnets (no matter how many permanent magnets are used, there is no arrangement that can levitate another magnet on top).
https://en.wikipedia.org/wiki/Earnshaw%27s_theorem
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version