Why Don T We Feel The Earth Spinning
Olivia Luz
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In other words it feels like nothing at all.
Thanks for your help. You can only feel movement if you change the speed. The earth s rotation and translation speeds remain the same so we don t feel any acceleration or deceleration. Earth spins at a constant speed i e there are no changes in its rotational speed and we humans that live on the surface move along with it at the same speed which is why we don t feel any direct physical effects of earth s spin.
It s he combination of gravity that holds us here and the total lack of any real centrifugal force throwing us off. So why don t we feel that same force really strongly. Our earth is like a giant roundabout spinning in space at around 1 000km h as measured at the uk s latitude. As earth spins its surface moves very fast but so do all the things that are held to its surface by gravity including you.
We do not feel any of this motion because these speeds are constant. Think of what it s like when you re in a moving car. So when the earth spins we change direction and so why cant we feel the change of the direction of our momentum. We don t feel any movement because these speeds are constant.
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As a result sometimes we need to add an extra second to our clocks because earth s rotation is slowing down by two thousandths of a second every day. It spins rotates at a speed of about 1 000 miles 1600 kilometers per hour and orbits around the sun at a speed of about 67 000 miles 107 000 kilometers per hour. The incredibly rapid spinning of 22 736 rpd rotations per day is why. We don t feel earth rotating on its axis because earth spins steadily and moves at a constant rate in orbit around the sun carrying you as a passenger right along with it.
So you have just proven with your own body why we don t fly off the earth we are spinning too slow. This holds us to the ground about 1 000 times more strongly than the earth s spin is trying to throw us off. However because this change in speed is so infinitesimally small for our purposes it still feels like earth is rotating at a constant rate. The spinning and orbital speeds of earth stay the same so we do not feel any acceleration or deceleration.
Just like when a car turns your momentum changes direction and so you can feel it.
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