gilareefer
gilareefer t1_izgn39q wrote
I bet the people that write those things don't even read them
gilareefer t1_iye4927 wrote
I don't understand why everyone in the country isn't flying their flag like this... Regardless of political affiliation, you must realize the U.S.A. is completely fucked
gilareefer t1_iybffpy wrote
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
gilareefer t1_iy9ujkz 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
The mercury does not expand/contract to activate these. It only acts as a switch
gilareefer t1_izl0iv7 wrote
Reply to Phobos' orbit prevents a traditional geostationary space elevator on Mars, but it is possible instead to build a downward space elevator from Phobos itself by Icee777
It would be cool if we found out that obelisk on Phobos is the remains of an ancient space elevator