My thermostat uses the expansion/contraction of a drop mercury to conduct electricity and trigger when to turn off and on.lorddoa t1_iy9r071 wrote
Reply to comment by Prindagelf in My thermostat uses the expansion/contraction of a drop mercury to conduct electricity and trigger when to turn off and on. by Iain_MS
Yep. Us po' rednecks used mercury in straws as the trigger to make our parachutes deploy in our homemade rockets. Like you said, it was about completing the circuit as opposed to thermal expansion
Just be sure to wait until the fucker is on the launchpad before hooking the wires up ;)
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