My thermostat uses the expansion/contraction of a drop mercury to conduct electricity and trigger when to turn off and on. Submitted by Iain_MS t3_z84a06 on November 29, 2022 at 7:58 PM in mildlyinteresting 91 comments 197
Skoodge42 t1_iya5btz wrote on November 29, 2022 at 9:53 PM Anyone else get MacGyver nostalgia when seeing a mercury switch? Permalink 1
My thermostat uses the expansion/contraction of a drop mercury to conduct electricity and trigger when to turn off and on.
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