Design, Engineering & Technology
Why aren't we only using solar power?
Lesson duration 04:43
Solar power is cheaper and more sustainable than our current coal-fueled power plants, so why...
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Life Sciences
How bees help plants have sex
Lesson duration 05:25
Plants have a hard time finding mates -- their inability to get up and move around tends to...
Visual Arts
A brief history of religion in art
Lesson duration 04:38
Before we began putting art into museums, art mostly served as the visual counterpart to...
Design, Engineering & Technology
Less stuff, more happiness - Graham Hill
Lesson duration 05:50
Writer and designer Graham Hill asks: Can having less stuff, in less room, lead to more...
Social Studies
Tycho Brahe, the scandalous astronomer
Lesson duration 04:08
If you think scientists lead boring, monotonous lives, you must not know about Tycho Brahe. The...
Social Studies
Soccer: the world's favorite game
Lesson duration 17:21
In the soccer fields of Port Elizabeth, South Africa, a provincial soccer star shares how her...
Mathematics
Why do honeybees love hexagons?
Lesson duration 03:59
Honeybees are some of nature’s finest mathematicians. Not only can they calculate angles and...
Earth and Space Science
The colossal consequences of supervolcanoes
Lesson duration 04:51
In 1816, Europe and North America were plagued by heavy rains, odd-colored snow, famines,...
Psychology
Doodlers, unite! - Sunni Brown
Lesson duration 05:51
Studies show that sketching and doodling improve our comprehension -- and our creative thinking....
Media and Journalism
How to choose your news
Lesson duration 04:49
With the advent of the Internet and social media, news is distributed at an incredible rate by...
Social Studies
The Silk Road: Connecting the ancient world through trade
Lesson duration 05:20
With modern technology, a global exchange of goods and ideas can happen at the click of a...
Life Sciences
How does your brain respond to pain?
Lesson duration 04:58
Everyone experiences pain -- but why do some people react to the same painful stimulus in...
Social Studies
Unintended consequences - Edward Tenner
Lesson duration 16:11
Every new invention changes the world -- in ways both intentional and unexpected. Historian...
Linguistics
How languages evolve
Lesson duration 04:03
Over the course of human history, thousands of languages have developed from what was once a much...
History
A digital reimagining of Gettysburg
Lesson duration 09:04
Geographer Anne Knowles uses digital technologies to reimagine the past. In this fascinating...
Psychology
Try something new for 30 days - Matt Cutts
Lesson duration 03:28
Is there something you've always meant to do, wanted to do, but just ... haven't? Matt Cutts...
Teaching & Education
Why good leaders make you feel safe - Simon Sinek
Lesson duration 12:00
What makes a great leader? Management theorist Simon Sinek suggests it's someone who makes their...
Earth and Space Science
The fundamentals of space-time: Part 3
Lesson duration 03:27
In the first two lessons of this series on space-time, we've dealt with objects moving at...
Life Sciences
How the heart actually pumps blood
Lesson duration 04:28
For most of history, scientists weren’t quite sure why our hearts were beating or even what...
Life Sciences
The cancer gene we all have
Lesson duration 03:19
Within every cell in our body, two copies of a tumor suppressor gene called BRCA1 are tasked...
Writing/Composition
A Rosetta Stone for the Indus script - Rajesh Rao
Lesson duration 17:02
Rajesh Rao is fascinated by "the mother of all crossword puzzles" - how to decipher the 4000 year...
Visual Arts
From Aaliyah to Jay-Z: Captured moments in hip-hop history
Lesson duration 06:21
Jonathan Mannion once convinced rapper DMX to climb into a pool of blood -- all in pursuit of...
The Arts
Exploring the creative process: drawing with tea and ink
Lesson duration 03:48
Explore the creative process with artist Slobodan Dan Paich, an ex-Yugoslavian émigré. At his...
Life Sciences
The science of symmetry
Lesson duration 05:09
When you hear the word symmetry, you might think generally of triangles, butterflies, or even...