why cant we feel 'PLANET EARTH' spinning?

Answer 1

A check of the Resolved answers would have answered your question & showed how often someone asks this.

We can't feel it because our sense of motion is entirely relative; we only have it when we are comparing the motion of something to ourself. Since we are moving at the same rate as the ground, sky, etc.etc. than there is nothing to compare with.

The sense of movement from our inner ear is due to otoliths, small pebble-like granules that rub or touch nerve endings in the inner ear. This is based on gravity and our movement relative to the gravity source (usually Earth). There's that relative thing again!

;-)

Answer 2

Because we are all, and everything else on earth, moving with the earth at the same contant speed. When you are on a train you can only feel its acceleration and deceleration, you cannot feel the train move when the train is going at constant speed in a single direction because you are moving with it. If the earth were to suddenly stop spinning, we would all feel it by flying off east wards at about a 1000 miles per hour.

Answer 3

It turns out that not only is the Earth spinning on its axis, but it is orbiting around the sun, which is in turn making its way around the galactic center at speeds of several hundreds of kilometers per second.

The reason we don't feel it can be explained by thinking of an airplane ride. Imagine we are in a perfect airplane. That is, an airplane that is flying at a constant velocity without slowing down, speeding up, turbulence or turning.

In this airplane, we are free to move about without noticing that the plane is moving. We can run, walk, play catch and do anything that we can do on the ground because we are moving at the same constant velocity as the airplane. In fact, if the windows were closed, there is no way we could tell whether we were flying along at this constant velocity or whether we were sitting motionless on the runway.

If, however, the pilot decides to speed up, slow down, or turn, the plane undergoes an acceleration and we can feel an inertial force.

Think of making a fast left turn in a car. You feel an inertial force pushing you to the right as a result of your frame or reference (in this case the car) undergoing an acceleration (the sharp left turn).

Like the plane, our solar system is moving very close to a constant velocity. So, just as in the plane, we can't feel that we are moving through space. Although the Earth is moving in a curved path around the sun, which means it is undergoing an acceleration, the inertial force is so small that we don't feel it.

We can however measure an inertial force caused by the earth's rotation. This force is called the Coreolis force and it plays an important role in our climate and weather planes.

Credit: http://www.pa.msu.edu/~sciencet/ask_st/062195.html

Answer 4

You would experience it if you journeyed from a pole to the equator. The contribution to the centripetal force due to the earth's acceleration is F=m*w^2*r, where w= angular velocity (2*pi rad/24hrs) and r= 6.4x10^6metres.
This works out at about .033N/Kg at the equator. So a person there of mass 60Kg would weigh about 2N less, equivalent to just under half a pound 'weight'
If the earth rotated very fast, the centripetal force required to keep you on the surface would exceed the force of gravity, then you would 'feel it'. Work it out using m*w^2*r>=m*g!

Answer 5

The Earth moves at a rotation rate that is significantly slower than people are able to turn. If I stand up and leisurely turn around it takes less than 4 seconds. A professional skater can turn around on ice in much less than a second. The Earth on the other hand takes a whole day to turn.

Answer 6

Because we, the ground we stand on and the air that surrounds are *all* spinning with it. Essentially we are "part of" the spinning earth, so there is nothing to stimullate the sensory modalities associated with movement and spinning (oculovestibulatory).

Answer 7

The earth is shifting and we circulate with it. So we've not have been given any way of detecting that we are in certainty shifting. circulation is all approximately from whose point of view you're shifting. this entire thought is what began Einsteins concept of particular relativity.

Answer 8

Because everything on the surface of the Earth is moving together: the ground, the buildings, the air, and so on. If you were in a car driving VERY smoothly and closed your eyes you wouldn't know it was moving at all. Try riding in a car going at 30mph and one going 60mph while wearing earplugs and with your eyes closed. Can you tell how fast the car is going? It's hard to do, and you can't tell on the Earth because it's moving so smoothly and everything moving together at the same rate.

Answer 9

Because we were born with it spinning, so we never notice it. If we were born in space in a "stationary" spot, then went on the earth, we'd feel it.

Answer 10

The same reason you can throw a ball on an airplane in the opposite direction it's moving and the ball will not be affected. Of course, to an outside observer the ball would look like it's affected. Theory of Relativity.