I was just sorting old photos and ran across this one from several years ago at the university. We were building some magnetism demos and bought some N95 neodymium magnets, including this one...

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It's scary just seeing that thing in my hand. The cars in the parking lot were starting to slide a little...

 

That thing is dangerous.

 

That is a finger paste maker

 

Just thinking… get 8 of those and make an axial field BLDC…

You’d need a thick carbon fiber rotor, I think. For fun we can throw in a liquid nitrogen cooled stator.

 

For something scarier… see the Central Solenoid:
https://www.usiter.org/us-hardware/central-solenoid

It is not a permanent magnet, but a superconductor magnet, but still…

 

For something scarier… see the Central Solenoid:
https://www.usiter.org/us-hardware/central-solenoid

It is not a permanent magnet, but a superconductor magnet, but still…

Yes, but these is something about a PM. It just sits there ready to do horrific damage, no batteries required.

 

Analyzer Magnet, 10KG uniform field beam bending. A overhead crane was used to lift off the several ton Iron core.


Cooling loop leaks.

 

Looks like the voice coil from the world’s largest moving magnet hard drive.

 

Looks like the voice coil from the world’s largest moving magnet hard drive.

The water leak hurt one of the 5KW power supplies too.

 

check if it's able to disble a street car ,it'd be useful as a batman equipments then :"