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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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If everything around us is made of atoms, why can’t we actually see them?
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How Gerardus Mercator later created a map that transformed navigation forever.
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DNA solves crimes, but what happens when it sends innocent people to prison?
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How thousands of tiny brains, obeying simple rules, solve problems no individual can understand.
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Joe visits a flavor lab to uncover how our senses shape our taste.
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How did the mass extinction of the dinosaurs play out, moment by moment?
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Think traits like eye color or tongue-rolling are simple genetics? Think again.
11:08
Why is the Martian sky red by day… but blue at sunset?
