04:56

Science & Technology

Why do we have leap years?

Lesson duration 04:56

435,269 Views

17:21

Thinking & Learning

4 lessons in creativity - Julie Burstein

Lesson duration 17:21

435,401 Views

04:09

Social Studies

La urbanización y la evolución de las ciudades a través de 10.000 años - Vance Kite

Lesson duration 04:09

435,401 Views

04:56

Earth and Space Science

Could we survive prolonged space travel?

Lesson duration 04:56

436,009 Views

02:01

Science & Technology

Freaks of nature: water holding frogs

Lesson duration 02:01

436,045 Views

07:49

Physical Science

Palladium (new) - Periodic Table of Videos

Lesson duration 07:49

437,504 Views

04:52

Health

Are there universal expressions of emotion?

Lesson duration 04:52

437,770 Views

04:57

Linguistics

Birth of a nickname

Lesson duration 04:57

439,076 Views

05:02

Science & Technology

How much electricity does it take to power the world?

Lesson duration 05:02

439,252 Views

08:14

Critical Thinking

The Tower of Epiphany | Think Like A Coder, Ep 7

Lesson duration 08:14

439,610 Views

18:09

Thinking & Learning

The nerd's guide to learning everything online - John Green

Lesson duration 18:09

440,994 Views

19:54

Data Analysis & Probability

The best stats you've ever seen - Hans Rosling

Lesson duration 19:54

441,767 Views

06:00

Science & Technology

How does this all-female species reproduce?

Lesson duration 06:00

441,817 Views

08:09

Technology

Rapid prototyping Google Glass

Lesson duration 08:09

441,898 Views

04:55

The Arts

The physics of playing guitar

Lesson duration 04:55

442,201 Views

04:53

Speaking

The case against “good” and “bad”

Lesson duration 04:53

443,385 Views

05:23

The Arts

The satisfying math of folding origami

Lesson duration 05:23

443,886 Views

15:24

Global Economics

How algorithms shape our world - Kevin Slavin

Lesson duration 15:24

444,038 Views

04:43

Literature & Language

Infinity according to Jorge Luis Borges

Lesson duration 04:43

444,977 Views

05:23

Design, Engineering & Technology

How the water you flush becomes the water you drink

Lesson duration 05:23

446,167 Views

05:20

Science & Technology

How to grow a glacier

Lesson duration 05:20

446,385 Views

04:28

Linguistics

The true story of 'true'

Lesson duration 04:28

447,444 Views

04:40

Health

The sleep disorder you might not know you have

Lesson duration 04:40

447,893 Views

03:16

Physical Science

Zinc - Periodic Table of Videos

Lesson duration 03:16

448,057 Views