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S36 Ep12: What Are Dreams - Preview

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Find out what scientists know about dreams: what they are and why we have them. 8/22/2012

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Dreams: Expert Q & A

Dreams: Expert Q & A

Harvard neuroscientist Robert Stickgold answers questions about sleep and dreams, including lucid dreams an...

Sleep

Sleep

Why do we need sleep? Part of the answer may be to strengthen memories.

Sleep: Expert Q & A

Sleep: Expert Q & A

Matt Walker of Harvard Medical School answers questions on how sleep impacts our ability to learn.

Sleepless Surgeons

Sleepless Surgeons

How important is sleep to a surgeon’s performance? Neil deGrasse Tyson visits a Harvard sleep researcher to...

Episodes of NOVA46

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

53:10

Video thumbnail: NOVA Treasures of the Earth: Metals

NOVA

Treasures of the Earth: Metals

What is it about the nature of metals that have made them a pillar of human civilization?

53:40

Treasures of the Earth: Metals

53:40

Video thumbnail: NOVA Treasures of the Earth: Gems

NOVA

Treasures of the Earth: Gems

What processes in the depths of the Earth forge beautiful and precious stones?

53:40

Treasures of the Earth: Gems

53:40

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Clips of NOVA251

Video thumbnail: NOVA Holocaust Escape Tunnel Prologue

NOVA

Holocaust Escape Tunnel Prologue

In a forest in Lithuania, a team of scientists searches for traces of a vanished people.

2:03

Holocaust Escape Tunnel Prologue

2:03

Video thumbnail: NOVA Holocaust Survival Tale: Abe

NOVA

Holocaust Survival Tale: Abe

In Lithuania during WWII, Abe Gol’s father led Jewish prisoners in a tunnel escape.

7:22

Holocaust Survival Tale: Abe

7:22

Video thumbnail: NOVA Holocaust Survival Tale: Esia

NOVA

Holocaust Survival Tale: Esia

Esia Friedman tells the story of how her family made it through the Holocaust alive.

6:21

Holocaust Survival Tale: Esia

6:21

Video thumbnail: NOVA Holocaust Survival Tale: Haim

NOVA

Holocaust Survival Tale: Haim

Zalman Matzkin narrowly escaped the Holocaust in Lithuania, managing to build a new life.

6:34

Holocaust Survival Tale: Haim

6:34

Video thumbnail: NOVA Holocaust Survival Tale: Hana

NOVA

Holocaust Survival Tale: Hana

Hana Amir describes her father escaping the Holocaust through a tunnel he helped to dig.

7:50

Holocaust Survival Tale: Hana

7:50

Video thumbnail: NOVA Saving Jewish History

NOVA

Saving Jewish History

Jewish scholars in Lithuania risked death in WWII to save their literature from the Nazis.

5:21

Saving Jewish History

5:21

Video thumbnail: NOVA S44 Ep5: Nuestro Mundo de Origami

NOVA

S44 Ep5: Nuestro Mundo de Origami

La biologia y el mundo físico al nuestro alrededor parecen estar gobernados por origami.

1:54

S44 Ep5: Nuestro Mundo de Origami

1:54

Video thumbnail: NOVA S44 Ep3: The Battery That Won't Explode

NOVA

S44 Ep3: The Battery That Won't Explode

Mike Zimmerman’s battery endures abuse at the hands of David Pogue.

2:06

S44 Ep3: The Battery That Won't Explode

2:06

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Previews of NOVA190

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

Video thumbnail: NOVA Holocaust Escape Tunnel Preview 2

NOVA

Holocaust Escape Tunnel Preview 2

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

0:30

Holocaust Escape Tunnel Preview 2

0:30

Video thumbnail: NOVA S44: Building Chernobyl's MegaTomb

NOVA

S44: Building Chernobyl's MegaTomb

Engineers race to build a massive dome to contain the crumbling remains of the reactor.

0:30

S44: Building Chernobyl's MegaTomb

0:30

Video thumbnail: NOVA S44: Holocaust Escape Tunnel Preview 1

NOVA

S44: Holocaust Escape Tunnel Preview 1

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

0:30

S44: Holocaust Escape Tunnel Preview 1

0:30

See All Previews