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It's Okay to Be Smart
The Mystery Behind Earth’s Most Epic Migration
Season 11
Episode 6
Nothing can travel faster than light — in a vacuum. But when light slows down, sometimes matter can blaze past that speed limit, creating a stunning glow called Cherenkov radiation. We can see this glow in a nuclear reactor as high-energy particles speed by. It offers us a window into a realm of the universe that is usually invisible to us.
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10:16
The real magic of mirrors is far stranger and more interesting, as you’re about to learn.
17:56
Neuroscientist David Eagleman talks about illusions that make the moving picture possible.
15:15
We explore what we can actually do about pollution.
9:21
The biggest thing that has ever lived on Earth… is a tree? Hard to believe, but it’s true!
15:33
We travel to Great Sand Dunes National Park to climb the largest sand dunes in America.
12:05
There are parts of you that are living and dying at the same time. We find out how much.