Eratosthenes: Computed the diameter of the Earth (to within 6%) around 238 BC.
Magellan (or at least his ship and a lot of his crew): sailed around the world.
Columbus did the most to prove the earth was shaped like a ball. He did this by sailing to America, and proving to Europe that the world was not flat. Edit: a lot of people think that, but it was established by the Ancient Greeks about 1800 years earlier.
It is globe shaped. Globe means sphere shaped so if you use the world globe most people automatically know you are talking about a spherical object
Because God felt like making the world spherical. Besides if it were shaped like a cube gravity would be different everywhere and Newton would be at a loss.
Any sailor coming from the sea closer to land or anyone living near a body of water that occasionally is calm and at least a few kilometers wide. Eratosthenes (276-194 BC) Ferdinand Magellan Yuri Gagarin
To circumnavigate and prove that earth was spherical most people don't get wht i say- I'm just a smart ass... i mean ... to travel around the world to prove its round :P lol x
Gravity has a preference for large ball shaped objects. In fact, being spherical under the force of its own gravity is part of the current definition of 'planet'.
The world is spherical
You can't because Linda Harmon is the smartest!!!
Nothing because the world is spherical
No, since our planet is spherical (ball-shaped) and we have only one sun, only half of the planet can be illuminated by the sun at any one time.
Cartographers an represent the spherical Earth on flat paper by making a projection, which is like casting shadows from the spherical world onto a flat piece of paper.
A globe.