Lessons

04:38

Science & Technology

Schrödinger's cat: A thought experiment in quantum mechanics

Lesson duration 04:38

9,091,219 Views

05:55

Social Studies

History vs. Christopher Columbus

Lesson duration 05:55

5,572,713 Views

05:29

Science & Technology

Light seconds, light years, light centuries: How to measure extreme distances

Lesson duration 05:29

3,650,150 Views

04:45

Science & Technology

How do we study the stars?

Lesson duration 04:45

922,333 Views

04:44

Health

How do vitamins work?

Lesson duration 04:44

6,766,536 Views

05:29

Medical Conditions

A brief history of melancholy

Lesson duration 05:29

1,544,527 Views

05:23

Psychology

Is telekinesis real?

Lesson duration 05:23

5,254,967 Views

02:55

Science & Technology

If matter falls down, does antimatter fall up?

Lesson duration 02:55

643,442 Views

04:40

Science & Technology

How cosmic rays help us understand the universe

Lesson duration 04:40

201,562 Views

04:24

Science & Technology

Where do genes come from?

Lesson duration 04:24

1,051,725 Views

05:17

Design

The history of tattoos

Lesson duration 05:17

2,371,170 Views

04:44

Physical Science

What is the Heisenberg Uncertainty Principle?

Lesson duration 04:44

5,213,851 Views

04:52

Science & Technology

Particles and waves: The central mystery of quantum mechanics

Lesson duration 04:52

1,138,897 Views

04:32

Science & Technology

The chemistry of cold packs

Lesson duration 04:32

482,141 Views

03:59

Physical Science

Two objects. Same room. Two different temperatures?

Lesson duration 03:59

4,430,994 Views