how can you prove that the earth is a sphere by looking at the horizon?
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Answer:
Watch a ship sail off to sea. Without being in the sky, it is impossible to see the curvature of the Earth. ...
Watch a lunar eclipse. ...
Climb a tree. ...
Travel through, or even within, different time zones. ...
Watch a sunset. ...
Measure shadows across the country. ...
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Explanation:
The earth has got a spherical shape, slightly bulging at the equator and flattened at the poles. The spherical shape is confirmed by the arrival of a ship seen first by its mast and later on the ship. The satellite picture of the earth, the shadow of the earth on the moon as circular, and the views of circular horizons from the height, etc. all these prove the spherical shape of the earth.
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