Nitrogen Toys

A small brass cannon the fires a rubber stopper when a small amount of Liquid Nitrogen is poured inside. A small light bulb is turned on until the battery's chemical reaction slows down as it freezes in liquid nitrogen. A light bulb connected to a coil of copper wire and a battery does not glow due to resistance in the wire. When the copper wire is coiled in the liquid nitrogen the light bulb shines.

Pira DCS #

Cooper Pipe   LN2   Dewar
Copper Coil and Light   Battery and Light   Rubber Stoppers