Northwestern Physics Demos                                 Go back to Electrostatics
DCS# 5A20.30NWU# ES21 Location:    10 E 1
title: Fun Fly Stick

A toy Van de Graaff, it produces an end that is positively charged when the button is pushed.  A very light cut of aluminized mylar inflates when charged, and can be floated in air by the repulsive electric field.

    Would this work on the moon? (ie. with lower gravity and in a vacuum?)
     Why does the mylar expand as it does?
pix of set upinterior viewoperation