Comments(0) I found a cylinder magnet and used is as the conductive rod or nail. I still attached my disc magnet and tested out the motor.
Now I have two diameters to work with and two speeds. The cylinder gives the lower speed and the disc gives the higher speed.
It may be hard to see in the video but check it out!
Comments(0) I found a link to a really easy to make homopolar motor using a battery, a wire, a screw, and a strong nickel plated magnet.
You can check out the evilmadscientist site for a cool video and explanation. He has some other cool experiments as well with one that moves water.
So I tried it out for myself but I used one AA rechargeable battery and a nail. I used a nail because I didnt have a screw with a sharp point.
Here is what it looked like.
I was even able to run the motor with one hand. The wire I used was stiff enough to keep touching the magnet.
