Yep. This stuff is surprisingly complicated, and that’s why we need to measure the day using a standardized unit instead of defining the unit with the day.
Incidentally, Wikipedia has a nice graph about the variation of the length of day. It’s surprisingly messy and pretty far from the ideals of antiquity.
Yep. This stuff is surprisingly complicated, and that’s why we need to measure the day using a standardized unit instead of defining the unit with the day.
Incidentally, Wikipedia has a nice graph about the variation of the length of day. It’s surprisingly messy and pretty far from the ideals of antiquity.
Planck second is constant.