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PODCAST

TED Talks Science and Medicine

Some of the world"s greatest scientists, doctors and medical researchers share their discoveries and visions onstage at the TED conference, TEDx events and partner events around the world. You can also download these and many other videos free on TED.com, with an interactive English transcript and subtitles in up to 80 languages. TED is a nonprofit devoted to Ideas Worth Spreading.

science & medicine

All Episodes

00:09:57

Are indoor vertical farms the future of agriculture?...

TED Talks Science and Medicine ·

2020/01/21

By 2050, the global population is projected to reach 9.8 billion. How are we going to feed everyone? Investment-banker-turned-farmer Stuart Oda points to indoor vertical farming: growing food on tiered racks in a controlled, climate-proof environment. In a forward-looking talk, he explains how this method can maintain better safety standards, save money, use less water and help us provide for future generations.

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00:13:12

How designing brand-new enzymes could change the...

TED Talks Science and Medicine ·

2020/01/21

"If DNA is the blueprint of life, enzymes are the laborers that carry out its instructions," says chemical biologist Adam Garske. In this fun talk and demo, he shows how scientists can now edit and design enzymes for specific functions -- to help treat diseases like diabetes, create energy-efficient laundry detergent and even capture greenhouse gases -- and performs his own enzyme experiment onstage.

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00:12:34

Why are drug prices so high? Investigating the...

TED Talks Science and Medicine ·

2020/01/16

Between 2006 and 2016, the number of drug patents granted in the United States doubled -- but not because there was an explosion in invention or innovation. Drug companies have learned how to game the system, accumulating patents not for new medicines but for small changes to existing ones, which allows them to build monopolies, block competition and drive prices up. Health justice lawyer Priti Krishtel sheds light on how we've lost sight of the patent system's original intent -- and offers

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00:10:59

The urgent case for antibiotic-free animals | Leon...

TED Talks Science and Medicine ·

2020/01/07

The UN predicts that antimicrobial resistance will be our biggest killer by 2050. "That should really scare the hell out of all of us," says bioprocess engineer Leon Marchal. He's working on an urgently needed solution: transforming the massive, global animal feed industry. Learn why the overuse of antibiotics in animal products, from livestock feed to everyday pet treats, has skyrocketed worldwide -- and how we can take common-sense measures to stave off a potential epidemic.

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00:15:43

The search for dark matter -- and what we've found so...

TED Talks Science and Medicine ·

2020/01/06

Roughly 85 percent of mass in the universe is "dark matter" -- mysterious material that can't be directly observed but has an immense influence on the cosmos. What exactly is this strange stuff, and what does it have to do with our existence? Astrophysicist Risa Wechsler explores why dark matter may be the key to understanding how the universe formed -- and shares how physicists in labs around the world are coming up with creative ways to study it.

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00:15:34

Your body was forged in the spectacular death of...

TED Talks Science and Medicine ·

2019/12/17

We are all connected by the spectacular birth, death and rebirth of stars, says astrophysicist Enrico Ramirez-Ruiz. Journey through the cosmic history of the universe as Ramirez-Ruiz explains how supernovas forged the elements of life to create everything from the air you breathe to the very atoms that make you.

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00:13:52

The search for our solar system's ninth planet | Mike...

TED Talks Science and Medicine ·

2019/11/22

Could the strange orbits of small, distant objects in our solar system lead us to a big discovery? Planetary astronomer Mike Brown proposes the existence of a new, giant planet lurking in the far reaches of our solar system -- and shows us how traces of its presence might already be staring us in the face.

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00:06:16

What it's like to live on the International Space...

TED Talks Science and Medicine ·

2019/11/13

In this quick, fun talk, astronaut Cady Coleman welcomes us aboard the International Space Station, where she spent nearly six months doing experiments that expanded the frontiers of science. Hear what it's like to fly to work, sleep without gravity and live life hurtling at 17,500 miles per hour around the Earth. "The space station is the place where mission and magic come together," Coleman says.

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00:11:32

Small rockets are the next space revolution | Peter Beck

TED Talks Science and Medicine ·

2019/11/12

We're in the dawn of a new space revolution, says engineer Peter Beck: the revolution of the small. In a talk packed with insights into the state of the space industry, Beck shares his work building rockets capable of delivering small payloads to space rapidly and reliably -- helping us search for extraterrestrial life, learn more about the solar system and create a global internet network.

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00:14:47

The next software revolution: programming biological...

TED Talks Science and Medicine ·

2019/11/01

The cells in your body are like computer software: they're "programmed" to carry out specific functions at specific times. If we can better understand this process, we could unlock the ability to reprogram cells ourselves, says computational biologist Sara-Jane Dunn. In a talk from the cutting-edge of science, she explains how her team is studying embryonic stem cells to gain a new understanding of the biological programs that power life -- and develop "living software" that could transform

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00:05:39

The link between fishing cats and mangrove forest...

TED Talks Science and Medicine ·

2019/10/24

Mangrove forests are crucial to the health of the planet, gobbling up CO2 from the atmosphere and providing a home for a diverse array of species. But these rich habitats are under continual threat from deforestation and industry. In an empowering talk, conservationist and TED Fellow Ashwin Naidu shares how community-driven efforts in South and Southeast Asia are working to protect mangroves -- all with a little help from the mysterious and endangered fishing cat.

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00:06:42

A coral reef love story | Ayana Elizabeth Johnson

TED Talks Science and Medicine ·

2019/10/18

Over the course of hundreds of scuba dives, marine biologist Ayana Elizabeth Johnson fell in love -- with a fish. In this ode to parrotfish, she shares five reasons why these creatures are simply amazing (from their ability to poop white sand to make colorful "wardrobe changes") and shows what's at stake -- for us and them -- as climate change threatens the future of coral reefs.

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00:11:49

How a handful of fishing villages sparked a marine...

TED Talks Science and Medicine ·

2019/10/17

We need a radically new approach to ocean conservation, says marine biologist and TED Fellow Alasdair Harris. In a visionary talk, he lays out a surprising solution to the problem of overfishing that could both revive marine life and rebuild local fisheries -- all by taking less from the ocean. "When we design it right, marine conservation reaps dividends that go far beyond protecting nature," he says.

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00:13:43

What happens in your brain when you taste food |...

TED Talks Science and Medicine ·

2019/10/03

With fascinating research and hilarious anecdotes, neuroscientist Camilla Arndal Andersen takes us into the lab where she studies people's sense of taste via brain scans. She reveals surprising insights about the way our brains subconsciously experience food -- and shows how this data could help us eat healthier without sacrificing taste.

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00:05:16

How community-led conservation can save wildlife |...

TED Talks Science and Medicine ·

2019/10/01

Conservationist and TED Fellow Moreangels Mbizah studied the famous Cecil the lion until he was shot by a trophy hunter in 2015. She wonders how things could've gone differently, asking: "What if the community that lived next to Cecil was involved in protecting him?" In a quick talk, Mbizah shares the state of conservation in her home of Zimbabwe -- and why she thinks that communities living with wildlife are the ones best positioned to help them.

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00:11:24

How one tree grows 40 different kinds of fruit | Sam...

TED Talks Science and Medicine ·

2019/09/27

Artist Sam Van Aken shares the breathtaking work behind the "Tree of 40 Fruit," an ongoing series of hybridized fruit trees that grow 40 different varieties of peaches, plums, apricots, nectarines and cherries -- all on the same tree. What began as an art project to showcase beautiful, multi-hued blossoms has become a living archive of rare heirloom specimens and their histories, a hands-on (and delicious!) way to teach people about cultivation and a vivid symbol of the need for

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00:14:00

Can seaweed help curb global warming? | Tim Flannery

TED Talks Science and Medicine ·

2019/09/23

It's time for planetary-scale interventions to combat climate change -- and environmentalist Tim Flannery thinks seaweed can help. In a bold talk, he shares the epic carbon-capturing potential of seaweed, explaining how oceangoing seaweed farms created on a massive scale could trap all the carbon we emit into the atmosphere. Learn more about this potentially planet-saving solution -- and the work that's still needed to get there.

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00:13:29

We need to track the world's water like we track the...

TED Talks Science and Medicine ·

2019/09/20

We need a global weather service for water, says entrepreneur and TED Fellow Sonaar Luthra. In a talk about environmental accountability, Luthra shows how we could forecast water shortages and risks with a global data collection effort -- just like we monitor the movement of storms -- and better listen to what the earth is telling us.

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00:11:00

How climate change could make our food less...

TED Talks Science and Medicine ·

2019/09/16

Rising carbon levels in the atmosphere can make plants grow faster, but there's another hidden consequence: they rob plants of the nutrients and vitamins we need to survive. In a talk about global food security, epidemiologist Kristie Ebi explores the potentially massive health consequences of this growing nutrition crisis -- and explores the steps we can take to ensure all people have access to safe, healthy food.

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00:13:42

A climate change solution that's right under our feet...

TED Talks Science and Medicine ·

2019/09/03

There's two times more carbon in the earth's soil than in all of its vegetation and the atmosphere -- combined. Biogeochemist Asmeret Asefaw Berhe dives into the science of soil and shares how we could use its awesome carbon-trapping power to offset climate change. "[Soil] represents the difference between life and lifelessness in the earth system, and it can also help us combat climate change -- if we can only stop treating it like dirt," she says.

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133 results

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