Euler's Disc

Euler, Swiss polymath, studied this phenomenon.  It's little more than a spinning penny coming to rest on a tabletop.  Using better materials makes for a visual spectacle!  It even has its own wiki page:  https://en.wikipedia.org/wiki/Euler's_Disk

This exhibit might go well with the Hurricane Balls.

Science Slam is  an annual parent organized event endorsed by Westwood Charter School.  This website is owned and operated by a parent steering committee, not by Westwood Charter School.