Is there an easy way to prove the Earth is round?

Humans have known, and proven, that the earth is round for a fair few millennia, but how can you prove it yourself?

Robert Matthews

Asked by: Davis Shears, Aberystwyth

Yes, travel. Because the Earth's surface is curved, you'll notice that different constellations of stars are revealed.

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Robert Matthews

Physicist

After studying physics at Oxford, Robert became a science writer. He’s visiting professor in science at Aston University.

Is there an easy way to prove the Earth is round? © Getty Images