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
gilareefer t1_iybffpy wrote on November 30, 2022 at 3:35 AM Reply to comment by D_daKid 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 Because it works well for this type of switch. Mercury is used as the conductor material in the switch... As the spring it's attached to heats/cools, the glass tube tilts & rolls the mercury into "on" position Permalink Parent 3 D_daKid t1_iybi4b5 wrote on November 30, 2022 at 3:58 AM Interesting. I've seen these before in older buildings and it's always intrigued me. Thanks! Permalink Parent 2
D_daKid t1_iybi4b5 wrote on November 30, 2022 at 3:58 AM Interesting. I've seen these before in older buildings and it's always intrigued me. Thanks! Permalink Parent 2
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