ይህንን ያውቃሉ
THE LENGTH OF DAYS IN EARTH IS INCREASING
The length of Earth's day is increasing. When Earth was
formed 4.6 billion years ago, its day would have been roughly
six hours long. By 620 million years ago, this had increased
to 21.9 hours. Today, the average day is 24 hours long, but
is increasing by about 1.7 milliseconds every century. The
reason? The moon is slowing down Earth's rotation through
the tides that it helps create. Earth's spin causes the position
of its tidal ocean bulges to be pulled slightly ahead of the
moon-Earth axis, which creates a twisting force that slows
down Earth's rotation. As a result, our day is getting longer —
but not long enough to make a difference to your busy
schedule.
