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Episode 5: The Calling

The Calling

Season 4 Episode 5
53:05
When Whales Could Walk

When Whales Could Walk

Season 51 Episode 1
53:31
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Out of Our Elements

Why Does Metal Rust? (And Why Should We Care?)

Season 1 Episode 7

Caitlin Saks and Arlo Pérez Esquivel team up with fellow NOVA producer Alex Clark to investigate a chemistry problem that has been eating at Alex (or rather, at his classic S13 Nissan Silvia) — rust. But rust isn’t only a challenge for protecting Alex’s sweet ride. It’s also a chemistry problem that engineers must tackle in order to protect the United States’ aging infrastructure.

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Out of Our Elements Season 1
9:43
Can chemistry help us save precious art?
We Tested Our COVID Immunity Every Month
14:44
Will antibodies be the heroes of the COVID pandemic?
How Did a Plane Find the First Molecule in the Universe?
8:52
How did the molecules that make our world—and us—come to be?
Can Turning CO2 to Stone Help Save the Planet?
11:42
Can we turn atmospheric carbon dioxide into stone to help slow global warming?
Is Biodegradable Plastic Actually Possible?
10:12
We have a plastic waste dilemma. Will innovative biodegradable plastics offer a solution?
Glass Is Making Your Internet Faster
10:16
Explore the properties of glass and how it forms the basis of the fiber optic network.
This Explosive Gas is Heating our Planet. Can we Capture it?
13:36
Methane—the potent molecule we use to heat our homes—is also seriously heating our planet
What Does Sweat Have to do with the Global Water Crisis?
13:29
Why is water so crucial to us—and to all life on Earth? The clues lie in our sweat.
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