<iframe width="580" height="385" src="https://www.youtube.com/embed/XilLC0uVCQ0" frameborder="0" allowfullscreen></iframe> <br>These TINY DANCERS are actually a homopolar motors! To make them you'll need wire, a battery, and neodymium ... <br><a href="https://www.youtube.com/watch?v=XilLC0uVCQ0">source</a>
