What can be use to observe the earth's spin?

Answer 1

Without any special tools or devices, just by noticing the direction of the sunrise and sunset. We know that the sun rises in the east and sets in the west, therefore the earth spins in the direction of (or toward) the sunrise, or to the east. If looking at the earth from above the equator, the earth would spin in a west-to-east direction. From the north pole, it turns counter-clockwise, and clockwise if viewed from above the south pole.

Answer 2

A Foucault pendulum is often used to observe the Earth's spin. It consists of a long pendulum that swings in a fixed plane, showing how the Earth rotates underneath it. Astrolobes and sextants can also be used to observe the Earth's spin by measuring the position of celestial objects in the sky.

Answer 3

EARTH rotates for "west to east" Answer proved-- As the Earth rotes from West - East, The sun rises from East and sets in the west. For more information, ask question at omkar_1109@Yahoo.com

Answer 4

It is that everything in the sky seems to rotate around us every 24 hours. You can say we are fixed and everything else moves round and is fixed somehow on to a big sphere, but now we know that it makes more sense to say we are rotating.

Answer 5

By measuring it against the plane in which the planet travels around the sun, and logically against the plane in which the initial gas cloud rotated before the birth of our solar system.

Without this tilt we would not have seasons, as at any time during our revolution around the Sun we would have exactly equal days and nights, and year round the light from the sun would arrive at the same angle.

Answer 6

The sun moves across the sky and returns to its starting point in 24 hours. So does the background star field. It is highly unlikely that these two things would happen with exactly the same frequency if it were them which were moving. It is much more sensible to believe that they stay still and our planet spins once in 24 hours.

Answer 7

You can watch the sun wheel across the sky during the day, and the stars at night. Focus a telescope on any star besides the north star--especially southern stars--and you can watch them drift across your field of view.

An alternative explanation is that all the stars are painted on (or holes in) some canopy that rotates around the earth. This explanation does not account for the motion of the "wanderers," or planets, as the Greeks called them, or for the path of the moon among the stars.

As we know the stars are massive bodies of significant and varying distance to the earth, the notion they all swing around us in unison seems highly implausible.

Answer 8

One observation is that we have day and night.

Ancient peoples thought the Sun revolved around the Earth.

We now know that the Sun is not going around the Earth, but it moves across the sky because of the Earth's spin.

The Moon and stars also seem to move in a similar way.

Answer 9

Eyes: night and day are caused by Earth's spin;

The shadow of a tree (or a stick stuck into the ground) and a compass: The shadow will be on the west side in the morning, east side in afternoon

Answer 10

i think the best way is to see which way the wind is coming from.