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
Ok-Drink-1328 t1_iyc2f0w wrote on November 30, 2022 at 7:34 AM it's a mercury switch, it works by leaning on one side or the other (mechanically), when the mercury touches both contacts inside the glass vial the contact is formed and stuff turns on 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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