circle, n.Trivia

Rainbows can be seen from an airplane as a complete circle

We have 60 seconds in a minute and 360 degrees in a circle because the ancient Babylonians did math in base 60 instead of base 10

Humans cannot walk in a straight line without a visual point. When blindfolded, we will gradually walk in a circle.

A full circle is 'decided' to be 360 degrees (and not a more obvious number, such as 100) because 360 is divisible by 24 different numbers, which makes it easy for math calculations.