What the hell is it called?

[Ronco Rox]

I forgot the name of this device that when it spins it creates a static electrically charge. so it would be like a pin or something rotating inside of a copper (or whatever) coil. i need the name for a schematic of it for a scholarship thingy any help would be pimpin

 

[Celegorm]

electromagnet?

 

[Ronco Rox]

booyah thank you lol +1

 

[Tommy Boy]

You mean a Van de Graaff generator?

Edit: beat me to it....