PolkaDotPrairie t1_iybr0au wrote on November 30, 2022 at 5:20 AM Reply to My thermostat uses the expansion/contraction of a drop mercury to conduct electricity and trigger when to turn off and on. by Iain_MS More than mildly interesting Permalink 2
PolkaDotPrairie t1_iybr0au wrote
Reply to My thermostat uses the expansion/contraction of a drop mercury to conduct electricity and trigger when to turn off and on. by Iain_MS
More than mildly interesting