TED-Ed

Dig into the field of cryobiology and explore the possibility of humans being frozen and preserved for future resurrection.

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In 1967, James Bedford had a plan to cheat death. He was the first person to be cryogenically frozen. This process promised to preserve his body until a theoretical future when humanity could cure any illness, and essentially, reverse death. So is it possible to freeze a human, preserve them indefinitely, and then thaw them out? Shannon N. Tessier explores the challenges of human cryopreservation.

Lesson by Shannon N. Tessier, directed by Gavin Edwards, Movult.

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View full lesson: https://ed.ted.com/lessons/can-you-freeze-your-body-and-come-back-to-life-shannon-n-tessier
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View full lesson: http://ed.ted.com/lessons/what-happened-to-antimatter-rolf-landua

Particles come in pairs, which is why there should be an equal amount of matter and antimatter in the universe. Yet, scientists have not been able to detect any in the visible universe. Where is this missing antimatter? CERN scientist Rolf Landua returns to the seconds after the Big Bang to explain the disparity that allows humans to exist today.

Lesson by Rolf Landua, animation by TED-Ed.

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View full lesson: http://ed.ted.com/lessons/how-spontaneous-brain-activity-keeps-you-alive-nathan-s-jacobs

Uploaded 13-01-15

The wheels in your brain are constantly turning, even when you're asleep or not paying attention. In fact, most of your brain’s activities are ones you’d never be aware of … unless they suddenly stopped. Nathan S. Jacobs takes us inside the always active, surprisingly spontaneous brain.

Lesson by Nathan S. Jacobs, animation by TOGETHER.



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We've been to the moon, we've mapped the continents, we've even been to the deepest point in the ocean -- twice. What's left for the next generation to explore? Biologist and explorer Nathan Wolfe suggests this answer: Almost everything. And we can start, he says, with the world of the unseeably small.

Talk by Nathan Wolfe.

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How do we keep labs that handle dangerous pathogens safe and leak-free? Dig into the ongoing debate over virology research.

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Since the 1970s, researchers have engineered superbugs. While this research could help us prepare for future outbreaks, the stakes of this work are extremely high: if even one dangerous virus escaped a lab, it could cause a global pandemic. So, what can we do to minimize risk? And is the knowledge gained even worth the risk in the first place? Dig into the ongoing debate over virology research.

Directed by Kevin Herrmann, AIM Creative Studios.

Learn more about the long-term thinking required for humanity to thrive: https://ed.ted.com/reducingrisk

This video made possible in collaboration with the Forethought Foundation
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Discover how humans lost their fur as they evolved from primates, and why we still have hair on our bodies.

Uploaded 03-06-21

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We have lots in common with our closest primate relatives. But comparatively, humans seem a bit… underdressed. Instead of thick fur covering our bodies, many of us mainly have hair on top of our heads— and a few other places. So, how did we get so naked? And why do we have hair where we do? Nina G. Jablonski explores the evolution of human hair.

Lesson by Nina G. Jablonski, directed by Igor Coric, Artrake Studio.

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Explore the physics of flight, and discover how aerodynamic lift generates the force needed for planes to fly.

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By 1917, Albert Einstein had explained the relationship between space and time. But, that year, he designed a flawed airplane wing. His attempt was based on an incomplete theory of how flight works. Indeed, insufficient and inaccurate explanations still circulate today. So, where did Einstein go wrong? And how exactly do planes fly? Raymond Adkins explains the concept of aerodynamic lift.

Lesson by Raymond Adkins, directed by Michael Kalopaidis, Zedem Media.

This video made possible in collaboration with Marriott Hotels
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Uploaded 09-08-18

View full lesson: https://ed.ted.com/lessons/how-the-normans-changed-the-history-of-europe-mark-robinson

In the year 1066, 7,000 Norman infantry and knights sailed in warships across the English Channel. Their target: England, home to more than a million people. Around the same period of time, other groups of Normans were setting forth all across Europe. Who were these warriors, and how did they leave their mark so far and wide? Mark Robinson shares a brief history of the Normans.

Lesson by Mark Robinson, directed by Echo Bridge.

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Practice more problem-solving at https://brilliant.org/TedEd

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A few years ago, the king decided your life would be forfeit unless you tripled the gold coins in his treasury. Fortunately, a strange little man appeared and magically performed the feat. Unfortunately, you promised him your first-born child in exchange for his help — and today he’s come to collect. Can you figure out how to outsmart the man and keep your baby? Dan Finkel shows how.

Lesson by Dan Finkel, directed by Gavin Edwards, Movult.

This video made possible in collaboration with Brilliant
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Even a death-defying magician has to start somewhere. High-wire artist Philippe Petit takes you on an intimate journey from his first card trick at age 6 to his tightrope walk between the Twin Towers.

Talk by Philippe Petit.

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