06:19

Mathematics

Can you solve the rogue submarine riddle? Difficulty level: Master

Lesson duration 06:19

1,529,872 Views

05:18

The Arts

The secrets of the world’s most famous symphony

Lesson duration 05:18

1,746,958 Views

04:24

Science & Technology

You could have a secret twin (but not the way you think)

Lesson duration 04:24

2,812,159 Views

04:22

Science & Technology

Earth's mysterious red glow, explained

Lesson duration 04:22

613,697 Views

22:09

Mathematics

The simplest math problem no one can solve

Lesson duration 22:09

42,457,121 Views

11:07

Psychology

2 questions to uncover your passion — and turn it into a career - Noeline Kirabo

Lesson duration 11:07

244,388 Views

04:57

Linguistics

What makes a language... a language?

Lesson duration 04:57

790,509 Views

05:52

History

The rise and fall of the Lakota Empire

Lesson duration 05:52

603,780 Views

15:13

Sex Education

How porn changes the way teens think about sex - Emily F. Rothman

Lesson duration 15:13

690,315 Views

05:29

Health

What is MSG, and is it actually bad for you?

Lesson duration 05:29

3,983,931 Views

04:48

Social Studies

The infamous overpopulation bet: Simon vs. Ehrlich

Lesson duration 04:48

582,648 Views

11:38

Science & Technology

Why are we warm-blooded?

Lesson duration 11:38

2,380,671 Views

05:27

Science & Technology

Is this the most successful animal ever?

Lesson duration 05:27

513,762 Views

05:55

Science & Technology

How we can detect pretty much anything

Lesson duration 05:55

325,937 Views

07:52

Thinking & Learning

Can you outsmart the slippery slope fallacy?

Lesson duration 07:52

1,005,293 Views

05:08

Health

How the COVID-19 vaccines were created so quickly

Lesson duration 05:08

1,210,085 Views

05:29

Social Studies

The secret society of the Great Dismal Swamp

Lesson duration 05:29

304,532 Views

05:07

Thinking & Learning

Can you solve the giant spider riddle?

Lesson duration 05:07

3,112,689 Views

05:06

Science & Technology

The method that can "prove" almost anything

Lesson duration 05:06

836,566 Views

05:19

Medical Conditions

What causes seizures, and how can we treat them?

Lesson duration 05:19

580,956 Views

05:21

Science & Technology

Iceland's superpowered underground volcanoes

Lesson duration 05:21

484,344 Views

04:56

Science & Technology

A year in the life of one of Earth's weirdest animals

Lesson duration 04:56

1,339,289 Views

05:12

History

The rise and fall of the Kingdom of Man

Lesson duration 05:12

1,173,832 Views

10:36

Psychology

A woman's fury holds lifetimes of wisdom - Tracee Ellis Ross

Lesson duration 10:36

217,507 Views