Lessons

04:38

Science & Technology

Schrödinger's cat: A thought experiment in quantum mechanics

Lesson duration 04:38

9,091,895 Views

05:55

Social Studies

History vs. Christopher Columbus

Lesson duration 05:55

5,572,925 Views

05:29

Science & Technology

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

Lesson duration 05:29

3,650,294 Views

04:45

Science & Technology

How do we study the stars?

Lesson duration 04:45

922,414 Views

04:44

Health

How do vitamins work?

Lesson duration 04:44

6,767,261 Views

05:29

Medical Conditions

A brief history of melancholy

Lesson duration 05:29

1,544,749 Views

05:23

Psychology

Is telekinesis real?

Lesson duration 05:23

5,255,094 Views

02:55

Science & Technology

If matter falls down, does antimatter fall up?

Lesson duration 02:55

643,446 Views

04:40

Science & Technology

How cosmic rays help us understand the universe

Lesson duration 04:40

201,579 Views

04:24

Science & Technology

Where do genes come from?

Lesson duration 04:24

1,051,800 Views

05:17

Design

The history of tattoos

Lesson duration 05:17

2,371,245 Views

04:44

Physical Science

What is the Heisenberg Uncertainty Principle?

Lesson duration 04:44

5,214,140 Views

04:52

Science & Technology

Particles and waves: The central mystery of quantum mechanics

Lesson duration 04:52

1,138,967 Views

04:32

Science & Technology

The chemistry of cold packs

Lesson duration 04:32

482,149 Views

03:59

Physical Science

Two objects. Same room. Two different temperatures?

Lesson duration 03:59

4,431,083 Views