TED Talks
TED: This app makes it fun to pick up litter | Jeff Kirschner
The earth is a big place to keep clean. With Litterati -- an app for users to identify, collect and geotag the world's litter -- TED Resident Jeff Kirschner has created a community that's crowdsource-cleaning the planet. After tracking...
TED Talks
Sonaar Luthra: Meet the Water Canary
After a crisis, how can we tell if water is safe to drink? Current tests are slow and complex, and the delay can be deadly, as in the cholera outbreak after Haiti's earthquake in 2010. TED Fellow Sonaar Luthra previews his design for a...
SciShow
Crypto and NFTs Are Environmental Disasters...But Do They Have to Be?
The world of cryptocurrency and NFTs is riddled with controversy, but somewhere amid all of that blockchain there's some reckoning with reality that must be done.
Crash Course Kids
A Case of 'What-Ifs'
Variables: What are they? In the case of engineering, variables are a condition or value that can change. Sometimes we control a variable, sometimes we don't. In this episode of Crash Course Kids, Sabrina chats to us about how variables...
SciShow
The Science Behind 'Genetically Modified Humans'
The media have been talking about “genetically modified humans” and “designer babies.” But what they’re really talking about is germ-line engineering: a process that could help eliminate heritable diseases. So why do some scientists want...
Crash Course
Educational Technology: Crash Course Computer Science
Today we’re going to go a little meta and talk about how computer science can support learning with educational technology. We here at Crash Course are big fans of interactive in-class learning and hands-on experiences, but we also...
Amoeba Sisters
Mega Genetics Review
Ready to review how to do different types of Mendelian and Non-Mendelian Punnett square problems with The Amoeba Sisters? This video reviews one-trait / monohybrid crosses, two-trait / dihybrid crosses, incomplete dominance, codominance,...
3Blue1Brown
How pi was almost 6.283185
Happy pi day! Did you know that in some of his notes, Euler used the symbol pi to represent 6.28..., before the more familiar 3.14... took off as a standard?
TED Talks
TED: How we'll earn money in a future without jobs | Martin Ford
Machines that can think, learn and adapt are coming -- and that could mean that we humans will end up with significant unemployment. What should we do about it? In a straightforward talk about a controversial idea, futurist Martin Ford...
SciShow
How Smart Are Animals, Really?
Measuring 'intellect' is a difficult task. Check out one way scientists are attempting to make this endeavor more testable.
TED Talks
Jane Chen: A warm embrace that saves lives
In the developing world, access to incubators is limited by cost and distance, and millions of premature babies die each year. TED Fellow Jane Chen shows an invention that could keep millions of these infants warm -- a design that's...
TED Talks
Arthur Benjamin: A performance of "Mathemagic"
In a lively show, mathemagician Arthur Benjamin races a team of calculators to figure out 3-digit squares, solves another massive mental equation and guesses a few birthdays. How does he do it? He’ll tell you.
TED Talks
Peter Molyneux: Meet Milo, the virtual boy
Peter Molyneux demos Milo, a hotly anticipated video game for Microsoft's Kinect controller. Perceptive and impressionable like a real 11-year-old, the virtual boy watches, listens and learns -- recognizing and responding to you.
TED Talks
Martin Villeneuve: How I made an impossible film
Canadian filmmaker Martin Villeneuve talks about "Mars et Avril," the sci-fi spectacular he made with virtually no money over a seven-year stretch. In this charming talk, he explains the various ways he overcame financial and logistical...
TED Talks
TED: How artists can (finally) get paid in the digital age | Jack Conte
It's been a weird 100 years for artists and creators, says musician and entrepreneur Jack Conte. The traditional ways we've turned art into money (like record sales) have been broken by the internet, leaving musicians, writers and...
SciShow
Mars Lander Crash Update: Mystery Solved!
In October, the first mission of the ExoMars program arrived at the Red Planet, and things didn't go exactly as planned. As NASA investigates the crash, the mystery unfolds.
TED Talks
Afra Raymond: Three myths about corruption
Trinidad and Tobago amassed great wealth in the 1970s thanks to oil -- but 2 out of every 3 dollars earmarked for development ended up wasted or stolen. This fact has haunted Afra Raymond for 30 years. Shining a flashlight on a continued...
TED Talks
TED: Why jobs of the future won't feel like work | David Lee
We've all heard that robots are going to take our jobs -- but what can we do about it? Innovation expert David Lee says that we should start designing jobs that unlock our hidden talents and passions -- the things we spend our weekends...
TED Talks
TED: How I started a sanitary napkin revolution! | Arunachalam Muruganantham
When he realized his wife had to choose between buying family meals and buying her monthly "supplies," Arunachalam Muruganantham vowed to help her solve the problem of the sanitary pad. His research got very very personal -- and led him...
TED-Ed
TED-Ed: Can you solve the fortress riddle? | Henri Picciotto
Bad news: your worst enemies are at the gate. Your fledgling kingdom guards the world's only herd of tiny dino creatures. To you, they're sacred. To everyone else, they're food. The three closest nation-states have teamed up to smash...
TED Talks
Carson Bruns: Could a tattoo help you stay healthy?
Can we make tattoos both beautiful and functional? Nanotechnologist Carson Bruns shares his work creating high-tech tattoos that react to their environment -- like color-changing ink that can tell you when you're getting a sunburn -- and...
TED Talks
Don Norman: 3 ways good design makes you happy
In this talk from 2003, design critic Don Norman turns his incisive eye toward beauty, fun, pleasure and emotion, as he looks at design that makes people happy. He names the three emotional cues that a well-designed product must hit to...
TED Talks
Roger Stein: A bold new way to fund drug research
Believe it or not, about 20 years' worth of potentially life-saving drugs are sitting in labs right now, untested. Why? Because they can't get the funding to go to trials; the financial risk is too high. Roger Stein is a finance guy, and...
TED Talks
Chris Domas: The 1s and 0s behind cyber warfare
Chris Domas is a cybersecurity researcher, operating on what's become a new front of war, "cyber." In this engaging talk, he shows how researchers use pattern recognition and reverse engineering (and pull a few all-nighters) to...