Do we rotate along with it because of it's gravitational pull? Or is it friction?
The OP asks about rotation along with the Earth. You can go to the North Pole, rotate slowly againts the Earth's spin, and you are not rotating along with the Earth anymore. So you cannot generally say that everyone has been always rotating with the Earth.russ_watters said:I prefer the second answer: we have always been moving with earth, so neither friction nor gravity are required to keep us moving with the earth.
HomogenousCow said:Do we rotate along with it because of it's gravitational pull? Or is it friction?
Ok, almost everyone -- 99.99999% of the population (estimate).A.T. said:The OP asks about rotation along with the Earth. You can go to the North Pole, rotate slowly againts the Earth's spin, and you are not rotating along with the Earth anymore. So you cannot generally say that everyone has been always rotating with the Earth.
Stationary wrt what?vk6kro said:If we only had gravity, we would watch the slippery Earth moving underneath us, but we would remain stationary.
russ_watters said:Stationary wrt what?
The Earth rotates because of the forces created by its initial formation. When the Earth was formed, it was a hot and molten ball of gas and dust. As the Earth cooled, its rotation sped up due to conservation of angular momentum, causing it to rotate at a speed of about 1,000 miles per hour at the equator.
The Earth's rotation causes day and night by constantly exposing different parts of the Earth to the Sun's light. As the Earth rotates, the side facing the Sun experiences daytime while the side facing away from the Sun experiences nighttime.
The Earth's rotation plays a crucial role in the planet's climate and weather patterns. It also helps regulate the Earth's temperature and helps distribute heat and moisture around the globe. The rotation also affects the length of a day and the direction of winds and ocean currents.
The Earth takes approximately 24 hours to make one full rotation on its axis, which is why we have 24 hours in a day. However, due to the Earth's orbit around the Sun, it actually takes about 23 hours and 56 minutes for the Earth to complete one rotation relative to the stars.
No, the Earth's rotation is not constant. It is gradually slowing down due to tidal forces caused by the Moon and other factors such as the Earth's changing shape and distribution of mass. This means that the length of a day is slowly getting longer by about 0.002 seconds per century.