it means that the earth will travel one spot and back to that same spot in 1 day
The tides are slowing the earths rotation and making the day longer.
The length of the day
the presence of day and night proved its rotation
The days may feel longer after a tsunami but no, the length of the day depends on the earths rotation not tsunamis.
The length of a day would increase and the number days in a year would decrease.
the earths rotation
rotation
earths rotation
Mars.
rotation
Yes
687 day