| When the electricity
section at the Exploratorium was being planned, we had a conference
with many learned people. This question was put to them, What turned
you on to or off of the phenomenon of electricity? Almost without
exception all males at the conference remembered being given model
train sets at Christmas and having as much fun vaporizing the tinsel
from the tree across the electrified tracks as actually playing
with the trains! This exhibit dispenses a short piece of thin wire.
The wire is then placed across the terminals of a battery. The wire
heats up red-hot and then burns through. It's not quite as exciting
as the original model railroad, but at least it's safe.