SciShow
Why Can't You Use Your Phone on a Plane?
Whether you've got the latest iPhone or the same flip phone you've had since 2002, you're still asked to turn off your device before take off. Why is that?
SciShow
4 Buildings Too Awesome to Be Real (For Now)
Humans take up a lot of space, but engineers are already coming up with some amazing solutions for the future.
SciShow
The SpaceX Explosion
What went wrong with SpaceX's Falcon 9 on September 1st? And an update on our old friend Philae!
TED Talks
Elizabeth Lesser: Take "the Other" to lunch
There's an angry divisive tension in the air that threatens to make modern politics impossible. Elizabeth Lesser explores the two sides of human nature within us (call them "the mystic" and "the warrior”) that can be harnessed to elevate...
TED Talks
Lucien Engelen: Crowdsource your health
You can use your smartphone to find a local ATM, but what if you need a defibrillator? Lucien Engelen shows us online innovations that are changing the way we save lives, including a crowdsourced map of local AEDs.
SciShow
The Imaginary Future Asteroid That Hit NYC
Last week, an asteroid impact drill was conducted, which demonstrated what might happen if an asteroid hit us within the decade. It didn't go quite as well as we would like.
SciShow
Our Alarmingly Close Shave with an Asteroid
How often do we miss asteroids like 2017 OO1, and what are astronomers doing to limit their impact? Meanwhile, distant icy worlds might not look as promising in our search for extraterrestrial life as scientists once thought.
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...
TED Talks
TED: Refugees have the right to be protected | António Guterres
António Guterres thinks that we can solve the global refugee crisis -- and he offers compelling, surprising reasons why we must try. In conversation with TED's Bruno Giussani, Guterres discusses the historical causes of the current...
TED Talks
TED: The little problem I had renting a house | James A. White Sr.
Fifty-three years ago, James A. White Sr. joined the US Air Force. But as an African American man, he had to go to shocking lengths to find a place for his young family to live nearby. He tells this powerful story about the lived...
SciShow
How Scientists Found the First Type of Molecule in the Universe - SciShow News
Around a quarter of a million years after the Big Bang, the very first molecule, helium hydride was formed. Now scientists have confirmed that molecule is still being made, and they found it with some help from a high flying airplane.
TED-Ed
TED-Ed: Check your intuition: The birthday problem - David Knuffke
Imagine a group of people. How big do you think the group would have to be before there's more than a 50% chance that two people in the group have the same birthday? The answer is - probably lower than you think. David Knuffke explains...
SciShow
3 Extreme Climate Fixes
Hank talks about a few - maybe crazy, maybe reasonable - geoengineering schemes that some scientists have come up with in order to "fix" climate change, including designer clouds, ocean fertilization, and stratospheric shading with...
SciShow
Could the Firefly Universe Exist?
Firefly takes place in an incredibly complicated star system. But it probably couldn't exist, because physics.
SciShow
The Most Extreme Complex Life in the World
Humans can’t go too far above or below sea level unaided, but there are some complex forms of life that CAN survive at super high elevations or in the deepest parts of the ocean.
TED Talks
Joe Kowan: How I beat stage fright
Humanity's fine-tuned sense of fear served us well as a young species, giving us laser focus to avoid being eaten by competing beasts. But it's less wonderful when that same visceral, body-hijacking sense of fear kicks in in front of 20...
TED Talks
TED: In defense of dialogue | Jonas Gahr Støre
In politics, it seems counterintuitive to engage in dialogue with violent groups, with radicals and terrorists, and with the states that support them. But Jonas Gahr Støre, the foreign minister of Norway, makes a compelling case for open...
TED Talks
TED: How to create a world where no one dies waiting for a transplant | Luhan Yang
For nearly half a century, scientists have been trying to create a process for transplanting animal organs into humans, a theoretical dream that could help the hundreds of thousands of people in need of a lifesaving transplant. But the...
Crash Course
Advanced CPU Designs: Crash Course Computer Science
So now that we’ve built and programmed our very own CPU, we’re going to take a step back and look at how CPU speeds have rapidly increased from just a few cycles per second to gigahertz! Some of that improvement, of course, has come from...
TED Talks
Gever Tulley: Life lessons through tinkering
Gever Tulley uses engaging photos and footage to demonstrate the valuable lessons kids learn at his Tinkering School. When given tools, materials and guidance, these young imaginations run wild and creative problem-solving takes over to...
TED Talks
TED: A pro wrestler's guide to confidence | Mike Kinney
You are more than you think you are, says former pro wrestler Mike Kinney -- you just have to find what makes you unique and use it to your advantage. For years Kinney "turned up" the parts of himself that made him special as he invented...
SciShow
Interview with EPA Administrator McCarthy
Hank interviews Administrator Gina McCarthy of the United States Environmental Protection Agency. They discuss getting people to care about climate change, the EPA's goals going into the United Nations Climate Change Conference, and the...
Crash Course Kids
The Robot Challenge
Robots! They're everywhere. We use them for all kinds of things that we can't, or don't want to do. In this episode of Crash Course Kids, Sabrina shares a problem with us that can probably be solved by building an awesome robot. So let's...
Crash Course
Where Does Your Mind Reside?: Crash Course Philosophy
Today we continue our unit on identity by asking where the mind resides. Hank explains the mind body problem and several approaches to the question of where our minds reside, including reductive physicalism, substance dualism, and...