2 ms·
My understanding is that the rate of earth's spin is "constant" (actually it is slowly decreasing on geologic time scales) but the orbit of the earth is not cir
by shkkmo 5y ago
My understanding is that the rate of earth's spin is "constant" (actually it is slowly decreasing on geologic time scales) but the orbit of the earth is not circular and a revolution around the sun doesn't match with a full number of earth rotations.
- LeoPanthera 5y agoThat is not correct. Positive leap seconds are caused by Earth's rotation rate slowing. Recently the Earth has begun to rotate slightly faster, possibly caused by climate change, which may mean a negative leap second is necessary. https://en.wikipedia.org/wiki/Earth%27s_rotation https://en.wikipedia.org/wiki/Earth%27s_rotation