Every once in a while, a hoax or claim that's so spectacularly absurd goes viral that even the most circumspect bystanders can be taken in. Yet science doesn't stop being true just because some people ...

Some days the world feels really big and some days it feels quite small, but as you might suspect, it doesn't actually change size. Here in the 21st century, we know the circumference, density, and ...

You might have heard that the Earth was earlier believed to be flat. You might have even laughed at the thought, but if you try and empathise with those who lived thousands of years ago, it would not ...

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Born around 276 B.C. in Cyrene, Libya, Eratosthenes soon became one of the most famous mathematicians of his time. He is best known for making the first recorded measurement of the Earth’s ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. G’day, Dr Karl here. Somehow, and I don’t know how, here we are in the 21st Century and yet there are ...

It is common sense that everyone knows that the earth is a sphere, but when walking in practice the road is flat and it is difficult to notice that "the earth is round". YouTube channel providing ...

The idea that people needed modern science to know Earth was round is not true. Eratosthenes worked it out in the 3rd century ...