Be Smart
How to See Time Travel!!!
Build your own cloud chamber particle detector and test relativity at home!
TED Talks
Christopher C. Deam: The Airstream, restyled
In this low-key, image-packed talk from 2002, designer Christopher C. Deam talks about his makeover of an American classic: the Airstream travel trailer.
TED Talks
Roselinde Torres: What it takes to be a great leader
The world is full of leadership programs, but the best way to learn how to lead might be right under your nose. In this clear, candid talk, Roselinde Torres describes 25 years observing truly great leaders at work, and shares the three...
TED Talks
Un polyglotte sommeille en vous
Un polyglotte sommeille en vous Les langues, comme les espèces, ont évolués au cours des siècles et de nombreuses langues modernes ont des racines communes. Linguiste et polyglotte, Sébastien Roger de Nuñez nous explique comment il est...
TED Talks
TED: A feminist reimagining of Kenya's public transport | Naomi Mwaura
Kenya's minibuses -- known as "matatus" -- offer a convenient, affordable and colorful way for people to get around. But they also pose safety risks and accessibility issues for many of their passengers, especially women. Bringing a...
TED Talks
TED: Asking for help is a strength, not a weakness | Michele L. Sullivan
We all go through challenges -- some you can see, most you can't, says Michele L. Sullivan. In a talk about perspective, Sullivan shares stories full of wit and wisdom and reminds us that we're all part of each other's support systems....
TED Talks
Nizar Ibrahim: How we unearthed the Spinosaurus
A 50-foot-long carnivore who hunted its prey in rivers 97 million years ago, the Spinosaurus is a "dragon from deep time." Paleontologist Nizar Ibrahim and his crew found new fossils, hidden in cliffs of the Moroccan Sahara desert, that...
PBS
The Origin of Matter and Time
We've broken down our preconceived notions about mass and time, now let's redefine what they really are. Since we know that time is not a universal constant, what is? Matt defines causal order and explains how even though time may look...
TED Talks
TED: The art of stillness | Pico Iyer
The place that travel writer Pico Iyer would most like to go? Nowhere. In a counterintuitive and lyrical meditation, Iyer takes a look at the incredible insight that comes with taking time for stillness. In our world of constant movement...
SciShow
Top 5 Coolest Things about Curiosity
In which Hank celebrates the landing of the Mars Curiosity Rover which you know was pretty freaking cool. So here are the Top Five Coolest Things about the Mars Curiosity Rover!
SciShow
How We Proved Earth Rotates Using a Giant Swinging Ball
People have suspected that Earth rotates for thousands of years, but how did we first prove it?
TED Talks
Karen Bass: Unseen footage, untamed nature
At TED2012, filmmaker Karen Bass shares some of the astonishing nature footage she's shot for the BBC and National Geographic -- including brand-new, previously unseen footage of the tube-lipped nectar bat, who feeds in a rather unusual...
TED Talks
TED: Did you hear the one about the Iranian-American? | Maz Jobrani
A founding member of the Axis of Evil Comedy Tour, standup comic Maz Jobrani riffs on the challenges and conflicts of being Iranian-American -- "like, part of me thinks I should have a nuclear program; the other part thinks I can't be...
SciShow
Is There Sound in Space?
Sound can't actually travel through a vacuum like space, but scientists have learned that there's still plenty to hear.
MinutePhysics
Faster Than Light Neutrinos (maybe) - Field Trip!
Come with us to Italy to find out what went into measuring the FTL neutrinos.
MinuteEarth
How To Hear Halfway Around The World
Sounds in the ocean can travel more than 10,000 miles - that's halfway around the world! Here's how.
TED Talks
Pico Iyer: Where is home?
More and more people worldwide are living in countries not considered their own. Writer Pico Iyer -- who himself has three or four “origins” -- meditates on the meaning of home, the joy of traveling and the serenity of standing still.
TED Talks
TED: For more tolerance, we need more ... tourism? | Aziz Abu Sarah
Aziz Abu Sarah is a Palestinian activist with an unusual approach to peace-keeping: Be a tourist. The TED Fellow shows how simple interactions with people in different cultures can erode decades of hate. He starts with Palestinians...
Bozeman Science
The Action Potential
In this video Paul Andersen details the action potential in neurons. The resting potential of a neuron (-70mV) is maintained through differences in concentration and permeability of Na, K, and Cl ions. A graded potential is created as...
Crash Course
Astrophysics and Cosmology: Crash Course Physics
It's time for the end. At least the end of our first series on Physics here at Crash Course. In this episode of Crash Course Physics, Shini sits down to talk about Astrophysics and Cosmology. By using what we've learned this year, we can...
TED Talks
My journey mapping the uncharted world | Tawanda Kanhema
Significant pieces of the globe are literally not on the map: they're missing from the most widely used mapping platforms, like Google Street View, leaving communities neglected of vital services and humanitarian aid. In this...
Curated Video
Is There Sound in Space?
Sound can't actually travel through a vacuum like space, but scientists have learned that there's still plenty to hear.
TED Talks
Moshe Safdie: How to reinvent the apartment building
In 1967, Moshe Safdie reimagined the monolithic apartment building, creating “Habitat ’67,” which gave each unit an unprecedented sense of openness. Nearly 50 years later, he believes the need for this type of building is greater than...