Have you ever wondered why there are 360 degrees in a circle?

Have you ever wondered why there are 360 degrees in a circle? This short video distills a lot of information about numbers, geometry and the relationship between them.

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Christopher Ryan — Are we designed to be sexual omnivores?

Author Christopher Ryan walks us through the controversial evidence that human beings are sexual omnivores by nature, in hopes that a more nuanced understanding may put an end to discrimination, shame and the kind of unrealistic expectations that kill relationships.