Evidence the Earth is round

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What is evidence the Earth is round?

-Space photos -Motion of ships sailing toward the horizon - shape of Earth's shadow during a lunar eclipse -Altitude of Polaris

What is a model?

A way of representing the propertiesof an object in a system like a globe, map or diagram.

Why are motions of shipd sailing toward the horizon evidence?

As ships sail toward the horizon, they appear to disappear from the bottom up. (This is because it travels on a curved surface)

Whay is the shape of Earth's shadow during a lunar eclipse evidence?

During a lunar eclipse Earth casts a curved shdow on the moon (only a round object would havea curved shadow)

Why are space photos evidence?

Photos from space show the sperical shape of Earth.

What is the best piece of evidence to proove that Earth is round?

Photos from space, it is direct evidence.

Why is the altitude of Polaris evidence?

The altitude of Polaris equals your latitude, therefore if Earth was flat everywere would see it at 90 degrees.

What is the true shape of Earth?

The true shape is an oblate speroid, slightly bulging and the equators and slightly flattenned at the poles.


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