Coriolis Effect?

Question

what causes the Coriolis Effect

Answer 1

the earths rotation,.

Answer 2

Coriolis force is an apparent force brought about by the rotation of the earth.This force deflects the wind to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.This force can be illustrated as follows.If you are still having the old gramophone with you, start rotating the turn table of the gramophone.With a ruler and a piece of chalk , draw a straight line from centre to circumference,quickly.Stop the turn table.It will be noticed that the line will not be a straight line but a curve.An apparent force causes the deflection in a direction opposite to that of the rotation of the record.This apparent force is called the coriolis force.
This force varies with the wind speed and latitude.It is maximum at the poles and zero at the equator.

Answer 3

This is a really cool thing.

The earth is a sphere, rotating on an axis. Because the sphere is farthest from the axis at the equator and closest to the axis at the poles, the actual distance that any one point goes (in a circle) around the axis in a day depends on its position in "lattitude", i.e., its distance in degrees north of the equator.

The diameter of the earth at the equator is about 12,756 km, which, if you multiply by 3.1416 gives about 40,074 km in circumfrence. This means that a point which is on the equator spins on the earth's axis at a rate of 40,074 km/day or almost 1670 kilometers per hour! THATS FAST!! Objects on earth near the equator are hurtling east FASTER THAN THE SPEED OF SOUND! ( about 1225 kph) Of course the air is moving at the same rate, so sound is completely unaffected by this, locally.

Points near the poles rotate around the axis on VERY SHORT CIRCLES. A point one kilometer from the north pole rotates in a circle with a one km radius. The circumfrence of this circle is 6.28 km. Objects at a point 1 km from the pole, therefore rotate at a speed of 6.28 km per day or 0.26 km per hour!

Points somewhere in between the equator and the pole rotate on circles which have some intermediate value. By my calculations, a point at 45 degrees north lattitude (which lies halfway from the equator to the pole) rotates on a circle with a diameter of about 9021 km. Therefore the circumfrence of that circle is 28,327 km and an object at that lattitude goes 28,327 km/day or about 1180 km/hr.

If an object (like a rocket) is launched north from the equator, then by the time it reaches 45 degrees north, it's going 1670-1180 or 490 kph eastward FASTER than the ground beneath it.

Therefore:

When something flies NORTH, it turns EAST!!!!

Thats the Coriolis effect.

The opposite happens when going toward the equator.

This is why storms rotate.