05:40

Environmental Science

Whatever happened to acid rain?

Lesson duration 05:40

2,624,058 Views

04:01

Science & Technology

Which animal murders the most?

Lesson duration 04:01

46,305 Views

05:20

Thinking & Learning

This tool will help improve your critical thinking

Lesson duration 05:20

6,610,155 Views

10:51

Psychology

The counterintuitive way to be more persuasive - Niro Sivanathan

Lesson duration 10:51

177,700 Views

05:05

Science & Technology

The surprising secrets of hummingbird flight

Lesson duration 05:05

1,062,380 Views

05:10

Business & Economics

Why good ideas get trapped in the valley of death— and how to rescue them

Lesson duration 05:10

785,322 Views

05:48

Thinking & Learning

Can you outsmart the apples and oranges fallacy?

Lesson duration 05:48

1,128,552 Views

09:53

Health

What it's really like to have autism - Ethan Lisi

Lesson duration 09:53

1,152,881 Views

05:16

Science & Technology

How does ultrasound work?

Lesson duration 05:16

406,798 Views

05:07

Philosophy & Religion

A brief history of the devil

Lesson duration 05:07

1,653,149 Views

04:58

Social Studies

Why every world map is wrong

Lesson duration 04:58

844,411 Views

06:17

Science & Technology

What it's like to live on the International Space Station - Cady Coleman

Lesson duration 06:17

83,796 Views

05:43

Thinking & Learning

Can you solve the fantasy election riddle?

Lesson duration 05:43

1,696,691 Views

05:42

Philosophy & Religion

Ugly History: The Spanish Inquisition

Lesson duration 05:42

1,650,013 Views

04:16

Science & Technology

The fascinating physics of boat wakes

Lesson duration 04:16

487,090 Views

04:41

Science & Technology

What’s the best fuel for your car?

Lesson duration 04:41

489,830 Views

12:23

Social Studies

What it takes to be racially literate - Priya Vulchi and Winona Guo

Lesson duration 12:23

163,309 Views

04:51

Psychology

How do antidepressants work?

Lesson duration 04:51

3,961,401 Views

04:48

Science & Technology

How much land does it take to power the world?

Lesson duration 04:48

539,370 Views

05:10

Science & Technology

The incredible, bendable, twistable, expandable elephant trunk

Lesson duration 05:10

277,151 Views

04:57

Design, Engineering & Technology

How does artificial intelligence learn?

Lesson duration 04:57

727,685 Views

05:02

Science & Technology

How much electricity does it take to power the world?

Lesson duration 05:02

429,247 Views

06:10

Social Studies

Who were Las Mariposas, and why were they murdered?

Lesson duration 06:10

1,534,356 Views

11:43

Health

Why can't we talk about periods? - Jen Gunter

Lesson duration 11:43

154,092 Views