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244 Results (Viewing 1 - 12 of 244)

Janet Iwasa: How animations can help scientists test a hypothesis

Duration: 15:44

3D animation can bring scientific hypotheses to life. Molecular biologist (and TED Fellow) Janet Iwasa introduces a new open-source animation software designed just for scientists.

     
Janet Iwasa: How animations can help scientists test a hypothesis

Molly Stevens: A new way to grow bone

Duration: 15:44

What does it take to regrow bone in mass quantities? Typical bone regeneration — wherein bone is taken from a patient’s hip and grafted onto damaged bone elsewhere in the body — is limited and can cause great pain just a few years after operation. In an informative talk, Molly Stevens introduces a new stem cell application that harnesses bone’s innate ability to regenerate and produces vast quantities of bone tissue painlessly.

     
Molly Stevens: A new way to grow bone

Fabian Oefner: Psychedelic science

Duration: 15:44

Swiss artist and photographer Fabian Oefner is on a mission to make eye-catching art from everyday science. In this charming talk, he shows off some recent psychedelic images, including photographs of crystals as they interact with soundwaves. And, in a live demo, he shows what really happens when you mix paint with magnetic liquid--or when you set fire to whiskey.

     
Fabian Oefner: Psychedelic science

Stuart Firestein: The pursuit of ignorance

Duration: 15:44

What does real scientific work look like? As neuroscientist Stuart Firestein jokes: It looks a lot less like the scientific method and a lot more like "farting around … in the dark." In this witty talk, Firestein gets to the heart of science as it is really practiced and suggests that we should value what we don’t know — or “high-quality ignorance” — just as much as what we know.

     
Stuart Firestein: The pursuit of ignorance

Elizabeth Loftus: The fiction of memory

Duration: 15:44

Psychologist Elizabeth Loftus studies memories. More precisely, she studies false memories, when people either remember things that didn't happen or remember them differently from the way they really were. It's more common than you might think, and Loftus shares some startling stories and statistics, and raises some important ethical questions we should all remember to consider.

     
Elizabeth Loftus: The fiction of memory

Andras Forgacs: Leather and meat without killing animals

Duration: 15:44

By 2050, it will take 100 billion land animals to provide the world's population with meat, dairy, eggs and leather goods. Maintaining this herd will take a huge, potentially unsustainable toll on the planet. What if there were a different way? In this eye-opening talk, tissue engineering advocate Andras Forgacs argues that biofabricating meat and leather is a civilized way to move past killing animals for hamburgers and handbags.

     
Andras Forgacs: Leather and meat without killing animals

Marla Spivak: Why bees are disappearing

Duration: 15:44

Honeybees have thrived for 50 million years, each colony 40 to 50,000 individuals coordinated in amazing harmony. So why, seven years ago, did colonies start dying en masse? Marla Spivak reveals four reasons which are interacting with tragic consequences. This is not simply a problem because bees pollinate a third of the world’s crops. Could this incredible species be holding up a mirror for us?

     
Marla Spivak: Why bees are disappearing

Heather Barnett: What humans can learn from semi-intelligent slime

Duration: 12:11

Inspired by biological design and self-organizing systems, artist Heather Barnett co-creates with physarum polycephalum, a eukaryotic microorganism that lives in cool, moist areas. What can people learn from the semi-intelligent slime mold? Watch this talk to find out.

     
Heather Barnett: What humans can learn from semi-intelligent slime

Peter Doolittle: How your "working memory" makes sense of the world

Duration: 09:29

"Life comes at us very quickly, and what we need to do is take that amorphous flow of experience and somehow extract meaning from it." In this funny, enlightening talk, educational psychologist Peter Doolittle details the importance -- and limitations -- of your "working memory," that part of the brain that allows us to make sense of what's happening right now.

     
Peter Doolittle: How your

Greg Asner: Ecology from the air

Duration: 13:50

What are our forests really made of? From the air, ecologist Greg Asner uses a spectrometer and high-powered lasers to map nature in meticulous kaleidoscopic 3D detail — what he calls “a very high-tech accounting system” of carbon. In this fascinating talk, Asner gives a clear message: To save our ecosystems, we need more data, gathered in new ways.

     
Greg Asner: Ecology from the air

Grégoire Courtine: The paralyzed rat that walked

Duration: 14:23

A spinal cord injury can sever the communication between your brain and your body, leading to paralysis. Fresh from his lab, Grégoire Courtine shows a new method -- combining drugs, electrical stimulation and a robot -- that could re-awaken the neural pathways and help the body learn again to move on its own. See how it works, as a paralyzed rat becomes able to run and navigate stairs.

     
Grégoire Courtine: The paralyzed rat that walked

Gian Giudice: Why our universe might exist on a knife-edge

Duration: 14:10

The biggest surprise of discovering the Higgs boson? That there were no surprises. Gian Giudice talks us through a problem in theoretical physics: what if the Higgs field exists in an ultra-dense state that could mean the collapse of all atomic matter? With wit and charm, Giudice outlines a grim fate -- and why we shouldn't start worrying just yet.

     
Gian Giudice: Why our universe might exist on a knife-edge
244 Results (Viewing 1 - 12 of 244)