Rare Earth Magnets and Giant Copper Pieces react

This is Dr. David Brodersen demonstrating the effects a large rare earth magnet has on a large piece of copper. No part of this video is in slow motion. This is how the magnet reacts to the copper.

Category:

Education

Tags:

• earth
• magnet
• copper
• brodersen

[TomPuzzle]

Basically what happens is as the magnet falls over, it creates a current in the copper (induction). This current in turn generates a magnetic field, which is opposite to that of the magnet. As these magnetic fields repel each other, the falling magnet slows down. If the magnet slows down, the current drops and the magnetic field is lost. That is why it in the end does fall over instead of repelling itself.

That is, if I understood my physics lessons of last term well.

[TeamGreen3342]

ill take that copper off your hands if you dont want it...lol

[SuperCyborg88]

BILLIE MAYES IS ALIVE!!!!

[fannoj]

nothing rare about this.

[alphafirstoneyou]

i missed it the first time.

[TeslaCoilArbiter]

@alphafirstoneyou

you didnt notice how the magnet was cushioned when he pushed it over, and how the copper slab managed to slide around by him only waving the magnet over the top?

[alphafirstoneyou]

wtf? demonstrated nothing?

[DanFrederiksen]

it all boils down to fields being hard to understand :)

magic action at a distance.

reality is so bizarre if you start to think about it

[MrCensorman]

greater effect wit aluminum tube