TED Talks
Jaime Lerner: A song of the city
Jaime Lerner reinvented urban space in his native Curitiba, Brazil. Along the way, he changed the way city planners worldwide see what's possible in the metropolitan landscape.
TED Talks
Aaron O'Connell: Making sense of a visible quantum object
Physicists are used to the idea that subatomic particles behave according to the bizarre rules of quantum mechanics, completely different to human-scale objects. In a breakthrough experiment, Aaron O'Connell has blurred that distinction...
TED Talks
Margaret Gould Stewart: How giant websites design for you (and a billion others, too)
Facebook's "like" and "share" buttons are seen 22 billion times a day, making them some of the most-viewed design elements ever created. Margaret Gould Stewart, Facebook's director of product design, outlines three rules for design at...
TED Talks
Catherine Mohr: The tradeoffs of building green
In a short, funny, data-packed talk at TED U, Catherine Mohr walks through all the geeky decisions she made when building a green new house -- looking at real energy numbers, not hype. What choices matter most? Not the ones you think.
TED Talks
George Smoot: The design of the universe
At Serious Play 2008, astrophysicist George Smoot shows stunning new images from deep-space surveys, and prods us to ponder how the cosmos -- with its giant webs of dark matter and mysterious gaping voids -- got built this way.
TED Talks
Josette Sheeran: Ending hunger now
Josette Sheeran, the head of the UN's World Food Program, talks about why, in a world with enough food for everyone, people still go hungry, still die of starvation, still use food as a weapon of war. Her vision: "Food is one issue that...
TED Talks
Del Harvey: Protecting Twitter users (sometimes from themselves)
Del Harvey heads up Twitter’s Trust and Safety Team, and she thinks all day about how to prevent worst-case scenarios -- abuse, trolling, stalking -- while giving voice to people around the globe. With deadpan humor, she offers a window...
TED Talks
TED: A flying camera ... on a leash | Sergei Lupashin
Let's admit it: aerial photo drones and UAVs are a little creepy, and they come with big regulatory and safety problems. But aerial photos can be a powerful way of telling the truth about the world: the size of a protest, the spread of...
TED-Ed
TED-Ed: What if there were 1 trillion more trees? | Jean-François Bastin
Today humanity produces more than 1,400 tons of carbon every minute. To combat climate change, we need to reduce fossil fuel emissions, and draw down excess CO2 to restore the balance of greenhouse gases. Like all plants, trees consume...
TED Talks
TED: The billion-dollar pollution solution humanity needs right now | Stacy Kauk
Could the same mechanism used to accelerate vaccine development work for spurring solutions to the climate crisis? Sustainability innovator Stacy Kauk introduces the billion-dollar fund to supercharge the carbon removal market, which...
TED Talks
Will Marshall: Tiny satellites show us the Earth as it changes in near-real-time
Satellite imaging has revolutionized our knowledge of the Earth, with detailed images of nearly every street corner readily available online. But Planet Labs' Will Marshall says we can do better and go faster -- by getting smaller. He...
Bozeman Science
Concept 6 - Structure and Function
Paul Andersen explains how the structure of objects are related to their function and vice versa. He begins with a quick quiz on bicycle construction and ends with a progression of teaching for students grades K-12. He also explains how...
Crash Course
Producers: Crash Course Film Production
So... what do Producers even do? It's a hard question to answer because there are so many different kinds of producers on a movie. In this episode of Crash Course Film Production, Lily Gladstone talks us through the different kinds of...
TED Talks
TED: How to fix the "bugs" in the net-zero code | Lucas Joppa
Lucas Joppa, Microsoft's first chief environmental officer, thinks about climate change through the lens of coding, and he says the world's current net-zero approach simply won't compute. So how do we create a system that actually...
SciShow
Kicked in the Crotch vs. Childbirth The Great Debate
Childbirth or a swift kick to the crotch? Both are painful experiences, but is there a scientifically accurate way to tell which is worse?
TED-Ed
TED-Ed: Why don't oil and water mix? - John Pollard
Salt dissolves in water; oil does not. But why? You can think of that glass of water as a big, bumpin' dance party where the water molecules are always switching dance partners -- and they'd much rather dance with a salt ion. John...
TED Talks
TED: A census of the ocean | Paul Snelgrove
Oceanographer Paul Snelgrove shares the results of a ten-year project with one goal: to take a census of all the life in the oceans. He shares amazing photos of some of the surprising finds of the Census of Marine Life.
Bozeman Science
Matter as a Wave
In this video Paul Andersen explains how matter can act as a wave at the nanoscale. Louis de Broglie showed that the wavelength of matter can be calculated using the momentum of an object and Planck's constant. The Davisson-Germer...
Bozeman Science
Gravitational Force
In this video Paul Andersen explains how an object with mass placed in a gravitational field experiences a gravitational force. On the Earth this gravitational force is known as weight. The gravitational force is equal to the product of...
3Blue1Brown
Linear combinations, span, and basis vectors: Essence of Linear Algebra - Part 2 of 15
Some foundational ideas in linear algebra: Span, linear combinations, and linear dependence.
Crash Course
Data & Infographics: Crash Course Navigating Digital Information #8
Today, we're going to discuss how numbers, like statistics, and visual representations like charts and infographics can be used to help us better understand the world or profoundly deceive. Data is a really powerful form of evidence...
Be Smart
There's No Such Thing As Cold
You've felt cold before. Sometimes it's cold outside. But what if I told you that "cold" isn't real? There's no substance or quantity called "cold" in science. We can't measure the amount of "cold" in something. Instead it's about what's...
Bozeman Science
Free-Body Diagrams
In this video Paul Andersen explains how free-body diagrams can be used to solve kinematics problems. The only two parts of a free-body diagram are the object and all external forces acting on the object. Numerous situations are...