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It's Okay to Be Smart
What If We Could See Nature In Infrared?
Season 7
Episode 24
Why are trees and other plants green? The answer is full of surprises. Using a special camera that can pick up light just beyond the visible range, into the near-infrared, you’ll get to see trees like you’ve never seen them before. And these other-worldly images can teach us not only why trees are green on Earth, but what color photosynthetic life on other planets might be.
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14:51
Seedless fruits are delicious, convenient… and completely unnatural.

21:13
What does randomness really mean? And why your digital life depend on it?

16:20
Why do we have different blood types? And why do we have blood at all?

16:18
How did dinosaurs become birds—and what good is half a wing?

16:00
Just how big would a telescope need to be to actually see an alien world in detail?

26:19
Dire wolves are back—sort of.

16:53
The key enzyme behind photosynthesis isn’t actually all that great at its job.

16:40
The oldest rocks on Earth are more than just ancient—they’re time machines!

17:11
This is one of the weirdest mysteries of human evolution: Why do we have grandmas?

12:28
Why do some people taste music or hear colors? Let’s talk about synesthesia.

14:35
How a chemical in lizard spit inspired one of the most important medical advancements.

12:15
These diamond makers create one of the most amazing materials on Earth — from dead people.