06:13

Social Studies

History vs. Thomas Jefferson

Lesson duration 06:13

528,497 Views

05:40

Thinking & Learning

The Boltzmann brain paradox

Lesson duration 05:40

1,256,486 Views

05:11

Literature

How to write the perfect crime, according to Agatha Christie

Lesson duration 05:11

855,691 Views

06:17

Thinking & Learning

Can you outsmart the college admissions fallacy?

Lesson duration 06:17

853,311 Views

06:24

Thinking & Learning

Can you solve the Big Bang riddle?

Lesson duration 06:24

1,254,571 Views

05:27

Literature & Language

The tragic myth of the Sun God's son

Lesson duration 05:27

2,136,708 Views

04:46

Business & Economics

Why is it so hard to escape poverty?

Lesson duration 04:46

5,228,108 Views

04:26

Philosophy & Religion

You can only save one— who do you choose?

Lesson duration 04:26

2,285,283 Views

05:19

Design, Engineering & Technology

Yes, scientists are actually building an elevator to space

Lesson duration 05:19

805,850 Views

05:54

Thinking & Learning

Can you solve the computer virus riddle?

Lesson duration 05:54

1,259,544 Views

22:09

Mathematics

The simplest math problem no one can solve

Lesson duration 22:09

42,093,494 Views

05:20

Mathematics

The paradox at the heart of mathematics: Gödel's Incompleteness Theorem

Lesson duration 05:20

3,817,991 Views

04:53

Thinking & Learning

Can you cheat death by solving this riddle?

Lesson duration 04:53

5,597,915 Views

05:16

Design, Engineering & Technology

How one design flaw almost toppled a skyscraper

Lesson duration 05:16

873,119 Views

05:48

Thinking & Learning

Can you outsmart the apples and oranges fallacy?

Lesson duration 05:48

1,120,607 Views

09:53

Health

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

Lesson duration 09:53

1,133,713 Views

05:06

Thinking & Learning

Can you solve the demon dance party riddle?

Lesson duration 05:06

1,724,986 Views

04:30

Speaking

We can help you master public speaking

Lesson duration 04:30

389,747 Views