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Religions and babies - Hans Rosling
Hans Rosling had a question: Do some religions have a higher birth rate than others -- and how does this affect global population growth? Speaking at…
1 day, 14 hours ago
The cheerful secret to better work - Shawn Achor
View full lesson: http://ed.ted.com/lessons/the-happy-secret-to-better-work-shawn-achor
We believe that we should work to be happy, but could that be …
1 day, 14 hours ago
How pigeons colonized the world - Elizabeth Carlen and Joanna Moles
Trace the ancient history of the pigeon, and discover how these birds became one of the most abundant species on the planet.
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Seeing their meat as a …
1 day, 15 hours ago
The material that could change the world... for a third time
Explore the role concrete plays in global warming and how scientists are working to create a cleaner, more sustainable concrete.
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Today roads, sidewa…
1 day, 16 hours ago
The Greek myth of the Fates' prediction - Iseult Gillespie
Dig into the Greek myth of Meleager, who set out to end a boar’s destruction of his city along with Greece’s best warriors.
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The night of her son's b…
1 day, 17 hours ago
What can DNA tests really tell us about our ancestry? - Prosanta Chakrabarty
Dig into the science of how ancestry DNA tests work, their accuracy, and why tracing ancestry is so complicated.
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Two sisters take the same DNA test…
1 day, 18 hours ago
Analyzing a zombie: Brain and body (Part one) - Tim Verstynen and Bradley Voytek
View full lesson: http://ed.ted.com/lessons/diagnosing-a-zombie-tim-verstynen-brad-voytek
Zombies eat brains. They are also, like all of us, driven by…
1 day, 18 hours ago
How breath functions - Nirvair Kaur
View full lesson on ed.ted.com http://ed.ted.com/lessons/how-breathing-works-nirvair-kaur
We breathe constantly, but have you ever thought about how b…
1 day, 19 hours ago
Can you unravel the savanna mystery? - Cella Wright
Explore how big-headed ants have changed an entire ecosystem in Kenya, from its insects and plants to its biggest predators.
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In the early 2000s, one…
1 day, 20 hours ago
The carbon cycle - Nathaniel Manning
View full lesson: http://ed.ted.com/lessons/the-carbon-cycle-nathaniel-manning
What exactly is the carbon cycle? Nathaniel Manning provides a basic lo…
1 day, 21 hours ago