What is the thing the battery is sitting inside? I’d love to make this with my son. Edit: [Nevermind, found it online. It’s a magnet.](https://www.youtube.com/watch?v=cBY_2ABINVg) Reply
Does this use up the battery?
is this how electric brush motors work? the concept has always confused the shit out of me
What is the thing the battery is sitting inside? I’d love to make this with my son.
Edit: [Nevermind, found it online. It’s a magnet.](https://www.youtube.com/watch?v=cBY_2ABINVg)