Earth and Space Science
Gravity and the human body
Lesson duration 04:46
Our bodies function necessarily under the presence of gravity; how blood pumps, a sense of...
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Results for "human body" (210)
The basics of the Human Rights Council
Lesson duration 03:17
Learn about the Human Rights Council, the main body within the UN system responsible for...
Sociology
What happens to our bodies after we die?
Lesson duration 04:41
Since the dawn of humanity, an estimated 100.8 billion people have lived and died, a number that...
Science & Technology
Vestigial structures
Lesson duration 04:20
A review of vestigial structures, some of the structures in our bodies that are "leftover" from...
Life Sciences
Why do humans have a third eyelid?
Lesson duration 04:36
You know that little pink thing nestled in the corner of your eye? It’s actually the remnant of a...
Earth and Space Science
Could we survive prolonged space travel?
Lesson duration 04:56
Prolonged space travel plays a severe toll on the human body: microgravity impairs muscle and...
Health
7 organs you could live without
Lesson duration 10:19
The human body is an incredibly complex machine made up of systems of organs all working together...
Visual Arts
Visualizing hidden worlds inside your body
Lesson duration 06:06
How do we see things too small to be detected by the human eye? What about things inside our own...
Science & Technology
How to grow a bone
Lesson duration 04:37
Can you grow a human bone outside the human body? The answer may soon be yes. Nina Tandon...
Science & Technology
Why do we have hair in such random places?
Lesson duration 04:22
We have lots in common with our closest primate relatives. But comparatively, humans seem a bit…...
Nutrition
What would happen if you didn’t drink water?
Lesson duration 04:52
Water is essentially everywhere in our world, and the average human is composed of between 55 and...
Science & Technology
Are you more likely to explode or freeze in space?
Lesson duration 04:56
Imagine a scientist who has teleported to space. His spacesuit’s pressurized air protects his...
Science & Technology
Can you freeze your body and come back to life?
Lesson duration 05:34
In 1967, James Bedford had a plan to cheat death. He was the first person to be cryogenically...
Health
Why are human bodies asymmetrical?
Lesson duration 04:19
Symmetry is everywhere in nature. And we usually associate it with beauty: a perfectly shaped...
Life Sciences
Poison vs. venom: What's the difference?
Lesson duration 03:56
Would you rather be bitten by a venomous rattlesnake or touch a poisonous dart frog? While both...
Science & Technology
How smart are dolphins?
Lesson duration 04:51
Dolphins are one of the smartest animal species on Earth. In fact, their encephalization quotient...
Science & Technology
The genes you don't get from your parents (but can't live without)
Lesson duration 05:03
Inside our cells, each of us has a second set of genes completely separate from our 23 pairs of...
Health
The most common STI in the world
Lesson duration 04:28
At some point, most sexually active people will be infected with human papillomavirus, or HPV....