TED-Ed
TED-Ed: At what moment are you dead? - Randall Hayes
For as far back as we can trace our existence, humans have been fascinated with death and resurrection. But is resurrection really possible? And what is the actual difference between a living creature and a dead body anyway? Randall...
TED Talks
TED: Salvation (and profit) in greentech | John Doerr
I don't think we're going to make it, John Doerr says in an emotional talk about climate change and investment. To create a world fit for his daughter to live in, he says, we need to invest now in clean, green energy.
MinuteEarth
Smartphones: A New Model for Energy Efficiency?
The way smartphones made many devices nonessential is a model for a new way to think about improving energy efficiency.
Be Smart
The Amazing Science of DUST?
Some of the universe's biggest action is a result of its smallest stuff
SciShow
Do Negative-Calorie Foods Exist?
We've all heard the rumor that certain foods provides less calories than it takes to digest. Is this true? Check out this SciShow Quick Question to find out!
SciShow
The Kugelblitz: A Black Hole Made From Light
Can you make a black hole out of light? Learn about the strange theoretical object called the 'Kugelblitz'.
TED-Ed
TED-ED: The deadly irony of gunpowder - Eric Rosado
In the mid-ninth century, Chinese chemists, hard at work on an immortality potion, instead invented gunpowder. They soon found that this highly inflammable powder was far from an elixir of life -- they put it to use in bombs against...
TED Talks
TED: Africa's great carbon valley -- and how to end energy poverty | James Irungu Mwangi
Our lives depend on curbing climate change, but so many priorities seem to be in competition. What's the most urgent thing humanity can do right now? Social entrepreneur James Irungu Mwangi tells us why Africa could be the ideal home for...
SciShow
The End of Everything
Hank gives us an inclusive overview of how everything in the universe is thought to have begun, and how cosmologists predict it will all come to an end. Now get happy!
MinuteEarth
How Do Some Waves Get SO Big?
All over the world, giant wave breaks appear because of underwater geology that supercharges their wave energy.
MinutePhysics
The Physics of Car Crashes
How is the chemical energy of gasoline transformed into kinetic energy of a moving car? And where does that kinetic energy go when the car crashes into something and stops moving?
SciShow
Zombie Stars Discovered!
SciShow Space reveals the discovery of a whole new kind of supernova, and the undead stars they leave behind.
TED-Ed
TED-ED: Sunlight is way older than you think - Sten Odenwald
It takes light a zippy 8 minutes to reach Earth from the surface of the Sun. But how long does it take that same light to travel from the Sun's core to its surface? Oddly enough, the answer is many thousands of years. Sten Odenwald...
SciShow
Why Do We Have Such Long Childhoods?
Compared to most animals in the vast kingdom, humans have one of the longest childhoods. And you might think this is so we have time to develop our advanced thinking skills, but scientists think it might not be that simple.
TED-Ed
TED-Ed: Is it possible to lose weight fast? | Hei Man Chan
In the wealthiest circles of Victorian England, dieters would swallow an unhatched tapeworm and let it grow inside them by consuming undigested meals. And while modern fad diets aren't usually this extreme, they do promise similar...
TED Talks
Risa Wechsler: The search for dark matter -- and what we've found so far
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...
TED Talks
Lord Nicholas Stern: The state of the climate — and what we might do about it
How can we begin to address the global, insidious problem of climate change — a problem that's too big for any one country to solve? Economist Nicholas Stern lays out a plan, presented to the UN's Climate Summit in 2014, showing how the...
SciShow
The Star That’s Secretly a Lawn Sprinkler
Scientists have found a star that spins so fast that it can almost complete a full rotation by the time it takes you to finish reading this episode description.
MinuteEarth
The Science of Hobbit Gluttony
Because smaller animals have to eat more relative to their bodyweight, Tolkein’s hobbits need to eat a lot - not for comfort, but for survival.
TED Talks
TED: 5 promising factors propelling climate action | Gabriel Kra
Given the scale of the challenge, the conversation around climate change is often tinged with doom and gloom. But climate tech investor Gabriel Kra thinks we need to reframe the crisis as a source of tremendous opportunity. He offers...
Be Smart
The Surprising Places We Waste Energy
We use a LOT of energy, but we waste a lot too. Where that waste happens might surprise, you though. We don't just waste energy when we leave the lights on or the thermostat cranked down too low. It happens at the dinner table and the...
Be Smart
Are Dinosaurs Extinct?
Most people are taught that dinosaurs went extinct 66 million years ago when a giant meteor crashed into the Yucatan peninsula. I'm here to tell you that's wrong. Dinosaurs are alive and well today, and you don't have to go to Jurassic...
TED Talks
TED: How we explore unanswered questions in physics | James Beacham
James Beacham looks for answers to the most important open questions of physics using the biggest science experiment ever mounted, CeRN's Large Hadron Collider. In this fun and accessible talk about how science happens, Beacham takes us...
SciShow
The Amazing Cosmic Discovery That Almost Was
SciShow Space News revisits one of the biggest (potential) astronomical discoveries of 2014, one that promised to revolutionize our understanding of the formation of the universe. Turns out, we're not quite there yet.