Build the world's simplest electric motor with magnets and a battery! Find out how to build these and other simple homopolar motors at https://sumag.net/homopolar-motors-y01

You'll just need a battery, a coil of copper wire and some neodymium magnets. We used these ones:

Disc magnets:
https://sumag.net/s-15-03-n-y01

Ring magnets for stabilisation on top:
https://sumag.net/r-12-09-1_5-n-y01

0:00 - Homopolar motor with heart-shaped wire
0:14 - Homopolar motor with square shaped wire
0:25 - Homopolar motor with spiral shaped wire