He also had a board which he had painted with homemade phosphorescent paint, made from ground-up strontium aluminate (I believe it was).  You could "draw" on it with a laser pointer:


Here is an example of Franklin's bells, an electrical demonstration made famous by Benjamin Franklin.  A small metal clapper is suspended between two metal bells, each of which is hooked up to one end of an electrical circuit.  If sufficient voltage is passed through the circuit, the clapper is attracted to one bell, touches it, releases (or obtains) electrons to become similarly charged, whereupon it is repulsed.  It is then charged oppositely to the other bell and is attracted to it, until it touches that bell and swaps charges.  The cycle repeats as long as the circuit is maintained.


The last thing we did was to eat whipped cream... that had been frozen in liquid nitrogen!  This turned Quinn into a dragon.