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Glass is Solid… So Why Is It Clear?

Glass is Solid… So Why Is It Clear?

Season 8 Episode 25
5:42
Why Do We Lie?

Why Do We Lie?

Season 8 Episode 26
16:43
Visualizing Herd Immunity

Visualizing Herd Immunity

Season 8 Episode 27
14:49
Why Don't Big Animals Get More Cancer?

Why Don't Big Animals Get More Cancer?

Season 10 Episode 2
9:42
How Illusions Can Explain Reality

How Illusions Can Explain Reality

Season 10 Episode 4
19:07
Are Humans Still Evolving?

Are Humans Still Evolving?

Season 10 Episode 5
10:41
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It's Okay to Be Smart

Why Geckos Are Sticky Without Being Sticky

Season 8 Episode 21

Geckos can grip and climb almost anything. Walking up walls, hanging upside down… even from glass. It’s almost like they can defy gravity. How do they do it? The secret lies in nanotechnology. I’ll tell you how that works and how scientists are using this incredible gripping ability to inspire next-generation adhesives. Here's the secret behind a gecko's gravity-defying grip.