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It's Okay to Be Smart
Why Are There 7 Days In a Week? Explained
Season 8
Episode 22
Why does everyone use a 7 day week, and where did it come from? Where do the names of the days come from? And who can we blame for Mondays? Here’s the true story of one of the oldest human customs still in use today. It gets a little weird.
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12:27
This episode is about the science and evolutionary history of...butts.
12:38
This could have devastating effects on our future.
11:57
We dug a classic doc that tells the story of the transcontinental burrito hypertunnel.
19:29
We explore all the questions that teach us what's possible in evolution!
14:49
We use lots and lots of mousetraps and ping-pong balls to show how this works.
16:43
Explore why we lie if we’re supposed to be the most socially developed species on Earth?
5:42
Glass is made of sand, which is a kind of rock. But glass is transparent. We explore why!
