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...
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...
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: 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.
Crash Course
Computer Engineering & the End of Moore's Law: Crash Course Engineering #35
This week we’re exploring a field of engineering that is essential to how you’re watching this video: computers and computer engineering. We’ll explain differences between hardware and software, how engineers are working on making...
SciShow
Rosetta Didn't Find Aliens!
New Horizons went into safe mode and lost a few days of science observations. And there seems to be some confusion over whether there are aliens on Comet 67P.
Crash Course
Neural Networks and Deep Learning
Today, we're going to combine the artificial neuron we created last week into an artificial neural network. Artificial neural networks are better than other methods for more complicated tasks like image recognition, and the key to their...
SciShow
How Do Touchscreens Work?
Ever wonder how your finger can magically control your smartphone screen? We explain in this episode of SciShow.
SciShow
Your Brain is Plastic
Hank explains the gift that your brain gives you every day: the gift of neural plasticity -- the ways in which your brain actually changes at the cellular level as you learn.
Crash Course
Data Structures: Crash Course Computer Science
Today we’re going to talk about on how we organize the data we use on our devices. You might remember last episode we walked through some sorting algorithms, but skipped over how the information actually got there in the first place! And...
Crash Course
How Engineering Robots Works: Crash Course Engineering #33
In this episode we looked at robots and the engineering principles of robots. We learned how robots use sensors to interpret their environment, how actuators and effectors allow a robot to manipulate the objects around it to accomplish a...
TED Talks
Ian Ritchie: The day I turned down Tim Berners-Lee
Imagine it's late 1990, and you've just met a nice young man named Tim Berners-Lee, who starts telling you about his proposed system called the World Wide Web. Ian Ritchie was there. And ... he didn't buy it. A short story about...
TED Talks
TED: Why I fell in love with monster prime numbers | Adam Spencer
They're millions of digits long, and it takes an army of mathematicians and machines to hunt them down -- what's not to love about monster primes? Adam Spencer, comedian and lifelong math geek, shares his passion for these odd numbers,...