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NOVA

S39 Ep10: Deadliest Tornadoes Preview

Video duration: 0:30

Airs April 11, 2012 at 9pm on PBS

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Hunt for the Supertwister

Hunt for the Supertwister

Tornado-chasing scientists with an eye to better forecasting plumb the secrets of nature's most terrifying ...

Rate Tornado Damage

Rate Tornado Damage

Use the Fujita Scale of tornado intensity to assess the level of destruction left in the wake of actual tor...

Tornado Country

Tornado Country

How is it that with nearly 200 nations in the world, just one—the U.S.—gets up to three-quarters of all tor...

Killer Tornado of 1928

Killer Tornado of 1928

The remarkable story of 17-year-old Dale Larson and 29 Nebraskan schoolchildren shows how far tornado warni...

Episodes of NOVA42

Video thumbnail: NOVA School of the Future - Spanish Version

NOVA

School of the Future - Spanish Version

How can the science of learning help us rethink the future of education for all children?

1:53:25

School of the Future - Spanish Version

1:53:25

Video thumbnail: NOVA S44 Ep10: Poisoned Water

NOVA

S44 Ep10: Poisoned Water

What exactly went wrong in Flint—and what does it mean for the rest of the country?

54:07

S44 Ep10: Poisoned Water

54:07

Video thumbnail: NOVA S44 Ep7: Holocaust Escape Tunnel

NOVA

S44 Ep7: Holocaust Escape Tunnel

At ground zero for the final solution, scientists uncover a story of hope and bravery.

54:14

S44 Ep7: Holocaust Escape Tunnel

54:14

Video thumbnail: NOVA Treasures of the Earth: Power

NOVA

Treasures of the Earth: Power

Drill underground to see the treasures that power our world—today and into the future.

53:10

Treasures of the Earth: Power

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Clips of NOVA241

Video thumbnail: NOVA 9 Minerals That Totally Rock

NOVA

9 Minerals That Totally Rock

From sea creatures to cityscapes, minerals are everywhere!

2:18

9 Minerals That Totally Rock

2:18

Video thumbnail: NOVA How to Build Your Dragon

NOVA

How to Build Your Dragon

Game of Thrones got us thinking — what would a real dragon look like?

2:17

How to Build Your Dragon

2:17

Video thumbnail: NOVA Why Does This Frog Have So Many Legs?!

NOVA

Why Does This Frog Have So Many Legs?!

These frogs can have up to TEN back legs.

3:08

Why Does This Frog Have So Many Legs?!

3:08

Video thumbnail: NOVA Secrets of the Ghost Forest

NOVA

Secrets of the Ghost Forest

Meet the earthquake that drowned the Pacific Northwest.

3:07

Secrets of the Ghost Forest

3:07

Video thumbnail: NOVA How to Find an Exoplanet

NOVA

How to Find an Exoplanet

Want to find another world beyond our solar system? Here are the 5 ways you can do it.

3:42

How to Find an Exoplanet

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Video thumbnail: NOVA The Case for Eating Bugs

NOVA

The Case for Eating Bugs

Would you eat insects if it helped save the planet?

4:25

The Case for Eating Bugs

4:25

Video thumbnail: NOVA Grow Your Own Crystals

NOVA

Grow Your Own Crystals

What should you do with the borax you have leftover from making slime? Make crystals!

3:38

Grow Your Own Crystals

3:38

Video thumbnail: NOVA Scandal's Joe Morton on Flint

NOVA

Scandal's Joe Morton on Flint

Actor Joe Morton, narrator of “Poisoned Water,” discusses the Flint water crisis.

4:09

Scandal's Joe Morton on Flint

4:09

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Previews of NOVA177

Video thumbnail: NOVA Flint: A Timeline

NOVA

Flint: A Timeline

Follow the emergency in Flint from the switch in water supply to today’s health crisis.

1:55

Flint: A Timeline

1:55

Video thumbnail: NOVA S44 Ep9: Chinese Chariot Revealed Preview

NOVA

S44 Ep9: Chinese Chariot Revealed Preview

A team of experts rebuild an ancient battle chariot to help uncover its design secrets.

0:30

S44 Ep9: Chinese Chariot Revealed Preview

0:30

Video thumbnail: NOVA S44 Ep10: Poisoned Water Preview

NOVA

S44 Ep10: Poisoned Water Preview

What exactly went wrong in Flint—and what does it mean for the rest of the country?

0:30

S44 Ep10: Poisoned Water Preview

0:30

Video thumbnail: NOVA Holocaust Escape Tunnel Q&A with Historians and Filmmakers

NOVA

Holocaust Escape Tunnel Q&A with Historians and Filmmakers

At ground zero for the final solution, scientists uncover a story of hope and bravery.

2:00

Holocaust Escape Tunnel Q&A with Historians and Filmmakers

2:00

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