|| Heat and Temperature
is a working model of a natural geyser. A large bowl of water is
supported over a long, thin tube which runs down to a glass chamber
filled with water heated by a heating element. As the water in the
chamber begins to boil, air and water are shot up the tube into
the air. Cool water drains back down the pipe filling the chamber,
and the cycle begins again. At the Exploratorium, geysers of different
heights (and, therefore, different cycle times) are placed together.