04:42

Business & Economics

The real story behind Archimedes’ Eureka!

1,795,082 views

05:34

Health

At what moment are you dead?

2,483,435 views

05:11

Mathematics

Is math discovered or invented?

1,165,613 views

05:29

Health

A brief history of melancholy

873,141 views

03:03

Philosophy & Religion

How do you know you exist?

1,965,007 views

16:47

Science & Technology

The Earth is full - Paul Gilding

13,955 views

04:38

The Arts

A brief history of religion in art

468,237 views

16:11

Social Studies

Unintended consequences - Edward Tenner

13,639 views

03:28

Psychology

Try something new for 30 days - Matt Cutts

288,202 views

01:21

Philosophy & Religion

Lessons from Auschwitz: The power of our words

265,950 views

12:53

Philosophy & Religion

Islam, the Quran, and the Five Pillars

6,343,670 views

04:44

Social Studies

The history of marriage

2,231,927 views

20:27

Psychology

What makes us feel good about our work? - Dan Ariely

55,269 views

11:10

Philosophy & Religion

The five major world religions

2,720,293 views

19:06

Design, Engineering & Technology

Toward a science of simplicity - George Whitesides

7,317 views

05:00

Philosophy & Religion

What is love?

936,637 views

09:35

Philosophy & Religion

On reading the Koran - Lesley Hazleton

150,755 views

04:10

Philosophy & Religion

The hidden meanings of yin and yang

2,111,473 views

04:51

Literature & Language

What's the definition of comedy? Banana.

409,698 views

04:49

Mathematics

Exploring other dimensions

1,897,028 views

17:33

Social Studies

The moral dangers of non-lethal weapons - Stephen Coleman

13,195 views

12:21

Philosophy & Religion

The happy secret to better work - Shawn Achor

92,295 views

13:20

Philosophy & Religion

Let's talk about dying - Peter Saul

129,913 views

04:12

Mathematics

What is Zeno’s Dichotomy Paradox?

1,394,242 views