Conduction in Glass
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PIRA Classification: 5D20.60
Description: 2 light bulbs are placed in series; however, one bulb
is broken in order to expose the glass stem inside. When the circuit is
switched on, the intact bulb doesn't light. A torch is then used to heat
the glass stem until it becomes molten, causing the second bulb to light.
The flame is removed and the bulb remains lit as the current keeps the
glass stem hot.
Special Instructions: Aim the torch directly at the glass stem.
Ideally For: Phys 1102, 1202, 1302, 1402
Condition: Good
Setup time: 2 minutes
Safety Issues: Things get hot.