1. Earth waiting by pressing on the ship:Magellan Victoria started off in love with the ship in 1511, when the ship returned again to the whole world, the earth proved to be the same round.
- Observing the ship from the top: If you see a ship coming towards the coast, you will see the mast of the ship first, the ship will come to the end of it, because the whole part of the ship will be visible to you, because the world is round, if the earth were flat, then the whole ship would see together Could be found
- Earth shade during chandragra: When the moon shines on the earth, it is seen on the moon as much as the Earth is like the arc greater than the moon, the shadow moon of the whole world can not be seen, the partial shadow of the earth gives the earth's spherical proof.
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