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
BoringCrow3742 t1_iybvcl2 wrote on November 30, 2022 at 6:06 AM Reply to comment by leannerae 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 up and down? nah just needs to be 72 F all year all day. set it and forget it =D Permalink Parent 1
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