It was around 250 BCE when ... One can understand that if the earth is a sphere. In fact, from the angle of the sun’s rays from the vertical on June 20 and the distance from Alexandria to Syene he was ...

Imagine a piece of string wrapped around the Earth's equator - that's about 40,000km ... thing here is to get a sense of proportion. The circumference of a circle is directly proportional to ...

Explore facts about this small but mighty celestial body. The Moon is a little over a quarter the size of the Earth, with a circumference of 10,917 kilometres around the equator and a radius – the ...

But if you live near the equator, you get almost ... to South pole (known as the meridional circumference) Earth is only 40,008 km (24,860 miles) around. It is the combination of the Earth ...

Rusá actually cycled a distance further than the earth’s circumference by around 15,000km. Even through freezing fog, Rusá kept going and pushing her limits, which is an inspiration to us all.