I believe that everybody must have studied that the shape of Planet Earth is "Sphere" and more precisely its Oblate-Ellipsoid(egg shaped). But how do you know this? How do you prove it without going to space..?
The answer is here...!
1. During eclipse, Planet Earth covers the Moon from Sun. At that time, if we observe, we find that the shadow of Earth falling on the Moon is a sphere..
2. Also, Waxing & Wanning of Moon indicates the shape of the Moon is also a "sphere".
3. When we see a distant vehicle at the horizon, we observe the roof of the vehicle first. Then the body. Then comes the Hood and finally the Tyres. This shows that the Earth is a sphere. If the Earth to be assumed flat, then the distant vehicle at the horizon should appear at a flash as a whole object.
In the picture, seen aside, a person looks for the ship at horizon. When the ship approaches, the person can see only the "mast" and the "sails" of the ship. As the ship comes near and near... He can see the hull and finally the bottom part of ship which is above the water line... This clearly proves the shape is approximately "Sphere"..
Comments are welcome if you find any other such proofs....!
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