TED Talks
TED: The future of money | Neha Narula
What happens when the way we buy, sell and pay for things changes, perhaps even removing the need for banks or currency exchange bureaus? That's the radical promise of a world powered by cryptocurrencies like Bitcoin and ethereum. We're...
SciShow
The Randomness Problem: How Lava Lamps Protect the Internet
Randomness is important for all kinds of things, from science to security, but to generate true randomness, engineers have turned to some pretty odd tricks!
MinutePhysics
Gravitational Waves Explained Using Stick Figures
This video is about gravitational waves in the weak field limit as discovered by the LIGO collaboration, explained by parallels to electromagnetic radiation, sound waves, water waves, etc. I want to see Cat LIGO ASAP!
TED Talks
Sugata Mitra: Build a School in the Cloud
Onstage at TED2013, Sugata Mitra makes his bold TED Prize wish: Help me design the School in the Cloud, a learning lab in India, where children can explore and learn from each other -- using resources and mentoring from the cloud. Hear...
SciShow
Why Is There a Magnet Inside My Dog?
Pet trackers, and lots of other electronics, have little cylinders inside them called ferrite beads. If they didn't, they'd probably be picking up the local traffic report instead.
TED Talks
Mikko Hypponen: Fighting viruses, defending the net
It's been 25 years since the first PC virus (Brain A) hit the net, and what was once an annoyance has become a sophisticated tool for crime and espionage. Computer security expert Mikko Hyppönen tells us how we can stop these new viruses...
SciShow
Uncovering the Secrets of the Past with AI
It’s probably not a surprise that many ancient texts are a bit worn out and tattered, and that makes deciphering what they say quite a task. But with new computer tech and artificial intelligence, we are getting much clearer glimpses of...
Crash Course
Hackers & Cyber Attacks: Crash Course Computer Science
Today we're going to talk about hackers and their strategies for breaking into computer systems. Now, not all hackers are malicious cybercriminals intent on stealing your data (these people are known as Black Hats). There are also White...
SciShow
The Quantum Theory that Connects the Entire Universe
Quantum mechanics is weird and seems a bit...complicated. But understanding it can help us to understand the universe.
Crash Course
The Clinton Years, or the 1990s Crash Course US History
In which John Green teaches you about the United States as it was in the 1990s. You'll remember from last week that the old-school Republican George H.W. Bush had lost the 1992 presidential election to a young upstart Democrat from...
Crash Course
Computer Vision: Crash Course Computer Science
Today we’re going to talk about how computers see. We’ve long known that our digital cameras and smartphones can take incredibly detailed images, but taking pictures is not quite the same thing. For the past half-century, computer...
TED Talks
TED: Meet a young entrepreneur, cartoonist, designer, activist ... | Maya Penn
Maya Penn started her first company when she was 8 years old, and thinks deeply about how to be responsible both to her customers and to the planet. She shares her story -- and some animations, and some designs, and some infectious...
TED Talks
TED: AI isn't as smart as you think -- but it could be | Jeff Dean
What is AI, really? Jeff Dean, the head of Google's AI efforts, explains the underlying technology that enables artificial intelligence to do all sorts of things, from understanding language to diagnosing disease -- and presents a...
TED Talks
TED: Finding life we can't imagine | Christoph Adami
How do we search for alien life if it's nothing like the life that we know? Christoph Adami shows how he uses his research into artificial life -- self-replicating computer programs -- to find a signature, a "biomarker," that is free of...
3Blue1Brown
How secure is 256 bit security? Cryptocurrency - Part 2 of 2
When a piece of cryptography is described as having "256-bit security", what exactly does that mean? Just how big is the number 2^256?
SciShow
The Old Sailors' Tool That Saved Apollo 13
In the 1700s, sailors used sextants to navigate the seas. Centuries later, these old-timey tools saved the day on not one, but two of the Apollo missions!
TED Talks
Shohini Ghose: Quantum computing explained in 10 minutes
A quantum computer isn't just a more powerful version of the computers we use today; it's something else entirely, based on emerging scientific understanding -- and more than a bit of uncertainty. Enter the quantum wonderland with TED...
SciShow
How to Upload Your Mind
Uploading your mind to a computer might one day let humans cheat death. The technology’s a long way off, but researchers are working on closing that gap. This episode was brought to you and inspired by the movie Self/less.
TED Talks
TED: Meet Spot, the robot dog that can run, hop and open doors | Marc Raibert
That science fiction future where robots can do what people and animals do may be closer than you think. Marc Raibert, founder of Boston Dynamics, is developing advanced robots that can gallop like a cheetah, negotiate 10 inches of snow,...
SciShow
Knitting to the Moon!
The software running Apollo's guidance computers was literally woven by hand by "little old ladies."
TED Talks
TED: How going to Mars improves life on Earth | Eric Hinterman
Memory foam, air purifiers, scratch-resistant lenses: these are just a few of the everyday items originally developed for space missions. Aerospace engineer Eric Hinterman invites us to dream big and imagine what technological...
SciShow
The Next X Prize: Artificial Intelligence!
Hank takes you to the next frontier of innovation: the XPrize for Artificial Intelligence, talking about how true AI can be measured, and what the future might look like.
Crash Course
Integrated Circuits & Moore’s Law: Crash Course Computer Science
So you may have heard of Moore's Law and while it isn't truly a law it has pretty closely estimated a trend we've seen in the advancement of computing technologies. Moore's Law states that we'll see approximately a 2x increase in...
SciShow
Why Electronics Just Shouldn't Work
Every wire, memory chip, and radio link is constantly fending off data corruption with error detecting and correcting codes. With the help of these codes, electronics can keep up the illusion of perfection… most of the time.