re help with ultra long timing in pqu pmu sunb ocs mq edu au johnh macadam mpce mq edu au john haddy writes in article c wi g a athena cs uga edu mcovingt aisun ai uga edu michael covington writes instead use a quartz crystal and divide its frequency by times or something like that wouldn t a crystal be affected by cold my gut feeling is that as a mechanically resonating device extreme cold is likely to affect the compliance terminology of the quartz and hence its resonant frequency yes but in a fairly reproducible way is only a smidgen of the distance to absolute zero and in any case you re going to have to borrow freezer space from a bio lab or someone to test calibrate this darling anyway btw you re probably going to want those big capacitors you found to fire the solenoid high current drain on frozen batteries can be an ugly thing paul
