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
restingsurgeon t1_iy9q38y wrote on November 29, 2022 at 8:17 PM 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 It is a bimetallic strip IIRC Permalink Parent 3
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