You Can Now Access All Of Richard Feynman's Physics Lectures For Free

The lectures of Nobel Prize winning physicist Richard Feynman were legendary. Footage of these lectures does exist, but they are most famously preserved in The Feynman Lectures. The three-volume set may be the most popular collection of physics books ever written, and now you can access it online, in its entirety, for… » 8/30/14 10:30am 8/30/14 10:30am

Read Richard Feynman's physics lectures for free online

Physicist Richard Feynman was particularly famous for his lectures, which were known for being an engaging and accessible introduction to a number of scientific topics. Now Volume One of The Feynman Lectures is available in its entirety online. » 9/15/13 8:30am 9/15/13 8:30am

Watch a series of seven brilliant lectures by Richard Feynman

Richard Feynman was obviously famous for his work as a physicist, but he's also widely regarded as one of the most lucid and effective lecturers to ever address an audience. So renowned, so readily accessible were his presentations, that his introductory physics lectures (which he delivered to undergraduates at… » 3/19/12 1:42pm 3/19/12 1:42pm

10 Awesome Online Classes You Can Take For Free

Back in August, we told you about a free course on artificial intelligence being offered by Stanford University, and co-taught by two world-renowned AI experts. The class officially started today, so if you managed to register for it on time, then good on you. » 10/10/11 10:25am 10/10/11 10:25am

Enroll in a free course on artificial intelligence, taught by two…

If you've ever wanted a world-class introduction to the basics of artificial intelligence, here's your chance. Every fall, engineering students at Stanford University can enroll in a class titled "Introduction to Artificial Intelligence." And now you can, too. » 8/26/11 1:37pm 8/26/11 1:37pm

A simple physics demonstration that shows why science still sometimes…

In this simple demonstration of how waves work, a Harvard instructor shows how a group of pendulums can move through a complicated dance together — due entirely to the way each pendulum oscillates at a different rate. » 7/28/11 10:31am 7/28/11 10:31am

A parasite that eats snail gonads and controls fishes' minds

The Euhaplorchis californiensis is a little parasite who lives in Southern California. And in this movie, released last year by researchers with the USGS, we learn why its lifecycle is the stuff of nightmares. » 11/22/10 4:30pm 11/22/10 4:30pm

Ride a space shuttle rocket booster into space, then plunge back to…

In this film, taken a couple of years ago from a rocket booster on the space shuttle Discovery, you can see what it's like to blast into space, shooting fire and whirling back into the upper atmosphere. » 8/19/10 9:30am 8/19/10 9:30am

Why do the biggest waves in the world hit a tiny beach in Northern…

If you haven't heard of Mavericks, that's because it's a tiny beach on the Northern California coast. But scientists and surfers know it well, because it delivers some of the most spectacularly huge waves in the world. Find out why. » 7/15/10 9:00am 7/15/10 9:00am

Are you ready for Snowball Earth?!

Watch as Earth becomes a mega-snowball, just like it did 650 million years ago! To watch this video properly, you have to yell "dude!" every time a scientific fact is followed by a dramatic reenactment where the WORLD IS DESTROYED. » 6/25/10 9:31pm 6/25/10 9:31pm

Millennia-old octopus mystery is solved

For thousands of years, a fist-sized octopus called the argonaut has baffled scientists. Even Aristotle wondered why this creature wraps its body in a thin "paper nautilus" to swim. Now, video evidence suggests these creatures have a highly-sophisticated ballast system. » 5/19/10 9:10pm 5/19/10 9:10pm

Proof That Rats Laugh When You Tickle Them

Now that we know octopi like to play with cameras, it's time to investigate other forms of animal play. Did you know that rats laugh when you tickle them? This scientist has proof - and it's pretty damn cute. » 4/20/10 1:00pm 4/20/10 1:00pm

Watch Cells Mutate Into Cancer and Divide Crazily, In These Amazing…

Every day, the cells in your body are dividing like crazy - sometimes too much, which is the definition of cancer. Here you can see breast cancer cells in action, multiplying into what could become a tumorous growth. » 3/31/10 6:02pm 3/31/10 6:02pm

How Space Junk Blanketed The Earth Over The Past 50 Years

This amazing video shows how the Earth collected over 5 tons of orbiting garbage over the past half-century - and exactly where it is. Sputnik's unexpected legacy is space junk. [via phospors] » 3/29/10 10:57pm 3/29/10 10:57pm

"Nature By Numbers" Explains The Math In Nature - Beautifully

Created by Cristóbal Vila, this video manages to explain how everything, from snails to flowers, is built according to predictable mathematical principles. Numbers have never been more sublime. [via Etérea Studios] » 3/25/10 2:28pm 3/25/10 2:28pm

Watch The Explosion That Never Stops Inside Your Engine

What happens deep inside that four-stroke engine inside your car, truck or jet when you run it? This silent, elegant video was taken inside one such engine, and reveals all. » 3/24/10 8:00am 3/24/10 8:00am

In The Future, You'll Play Tetris On Your Skin

A group of researchers has created "Skinput," a device that turns your body into a touchscreen by sensing movements in your skin and muscle. Witness the future of the mobile - literally in the palm of your hand. » 3/03/10 7:30am 3/03/10 7:30am

Taking a Stroll in Low-Earth Orbit: The Truth About Spacewalks

When astronauts spacewalk, it looks like they're floating serenely in the vacuum of space. The reality: they're hurtling at 17,220 mph inside bulky pressurized suits. Here's the lowdown on spacewalking, from how it's done to what it costs. » 2/25/10 7:30am 2/25/10 7:30am

A Tale Of Two Neurons - One Normal, One A Mutant

What's the difference between a mutant neuron, or nerve cell, and an ordinary one? This amazing time-lapse video from MIT shows two neurons developing into healthy and weird variants. » 2/22/10 5:30pm 2/22/10 5:30pm

The Giant Machines That Create Earthquakes

It may not be Lex Luthor's earthquake-causing missile, but the earthquake centrifuge at UC Davis in California is the next best thing. It's a giant robotic arm that can cause horrific earthquakes, all in the name of science. » 2/19/10 2:00pm 2/19/10 2:00pm