earth rotates on its own axis so when we are standing still in air why dont we change our position .?

Answer 1

What do you mean, we don't change position? We are moving all the time. The problem is with your frame of reference. You don't recognize that you are moving because the earth and wind move right along with you, and if that is your frame of reference, you notice no changes.

However, if you were to take a position in an external frame of reference, you could easily distinguish the motion. If you were motionless outside the solar system and were able to watch just me in a powerful telescope, you would have to be shifting the focus constantly as I moved along with the rotation of the planet on its axis, and the motion of the earth along it's orbit, and the motion of the solar system within the Milky Way galaxy, and the motion of the galaxy in the universe.

Alternatively, stand outside on a dark night and watch the movement of the stars very carefully. Now, admittedly, the stars are also moving -- and pretty darned fast in absolute terms. But they are so far away that their apparent motion over short time spans is zero. Yet the stars march across the sky every night -- constellations appear on the eastern horizon, move across the sky, and drop below the western horizon. All this shows our movement through space. But we don't "feel" the movement becuase we are part of our immediate frame of reference.

Hope this helps.

Answer 2

There are two questions buried in yours I think.

One relates to the fact that since the earth is moving why don't we move to a position where we were since it is moving beneath us. Well if it wasn't for gravity we wouldn't be able to stand still unless we were holding on to something fixtured to the earth.

The second aspect to your question relates to how we define position. The typical method is define it relative to the earth itself using latitude and longitude.

These are arbitrary lines that run parallel to the equator (latitude) and longitude runs through the north and south poles in a great circle around the earth.

Using a specific intersection point of lat/long one can describe the exact location where you are relative to the earth itself.

If you were plotting out a position say relative to a point on the sun it would be very complicated since the sun is rotating and the earth is rotating on its own axis as well as rotating around the sun.

Or you could fix one's position around something outside our solar system that would contain all the movements above as well as the movement of the solar system through space.

That's why it is so much easier to just have positioned defined as point on earth relative to earth.

By the way if you are into planes you need to use not only latitude and logitude but altitude to get a good positional fix.

Answer 3

Because the air is moving with the earth. If it didn't, we'd have constant 700-1000 mph winds as all the air stayed in one place while the earth spun beneath it. There would likely be no life on the earth's surface.

Answer 4

The air rotates with the world because of the gravity . We have a little rotation that is west to east of the weather.
Need to study harder

Answer 5

We do change our position. Its just that everything around us has also changed by the same degree, so it appears unchanged.
A guy sleeping on a subway train doesnt appear to be moving, but he is rocketing down the tracks.

Answer 6

It is because everything is moving at the same speed so it appears that we are standing still.

Answer 7

first tell me why does the point of the compass did not rotate when we are making a circle with it.you will find your answer .

Answer 8

For the same reason as when you jump up in a train carriage, you still land back on the same spot.
It's called inertia --- I think....

Answer 9

who has time to stand still?