2021 will be a shorter year than usual: scientists…
If the Earth’s rotation loses its compatibility with atomic clocks, one leap second can be added or subtracted so that the calculation is not disturbed.Scientists at the International Earth Rotation and Reference System Service measure the duration of a day exactly as a star passes through a particular place in the sky each day. 2021 […]
2021 will be a shorter year than usual: scientists… Read More »