Blow Out Your Toaster
the power to this exhibit is switched on, the wires sag as they
rapidly heat and expand. When the power is switched off, they contract
again. If the visitor blows on the glowing wires, they turn dark.
A lever on the left moves a magnet past the wires making them vibrate.
These Nichrome wires are just like the kind you see in toasters
and electric heaters. This exhibit allows the visitor to learn why
the wires glow, stretch, and vibrate.