Next time you're in a car doing 20mph, look at something far away, then look at lampposts passing within a few feet of your window. The something far away is easy to focus on, but the lamppost isn't, right?
';These cows are small. Those cows are far away.';If the earth rotates at 1038 KM per hour. How do our eyes focus when we look at the stars?
The Earth actually moves at 1658 KM per hour at the equator, but speed is insignificant when we view a star.If the earth rotates at 1038 KM per hour. How do our eyes focus when we look at the stars?
Stars are a long, long way away. Light coming from a very distant object appears to be coming towards us at the same angle; despite the rotation of the earth. it takes a very precise scientific instrument to measure the angular distance from a star, even from opposite sides of the earth's orbit around the sun (about 300 million kilometers from one side to the other).
The surface velocity isn't what makes the difference, it is the angular velocity that natters. It still takes a day to rotate 360 degrees.
The effect is quite noticable if you set up a stationary telescope and focus on anything in the heavens. At higher magnifications the stars zoom across you field of view and are hard to track.
Einstein has a lot to answer for.
If the earth rotates at 1 revolution per day. How do our eyes focus when we look at the stars?
Very easily, there is plenty of time before the star drops below the horizon.
EZ divide that by the circumference of the earth and that's how fast you are moving
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