PBS
The Trebuchet Challenge | Space Time
Kinetic and potential energy are defined as combinations of more basic quantities: position, velocity and mass. These combinations are chosen so that their sum is conserved. It’s actually remarkable that there’s any such combination of...
SciShow
What Slot Machines Can Tell Us About Our Brains
The rise of lootboxes in video games has led to numerous investigations seeking to establish just how close to gambling they are. While the science behind lootboxes is only just beginning to come in, we do know a lot about how other...
TED-Ed
TED-ED: The mighty mathematics of the lever - Andy Peterson and Zack Patterson
Archimedes once said "Give me a place to stand, and I shall move the Earth." While the idea of a person moving such a huge mass on their own might sound impossible, chances are you've seen this idea in action at your local playground....
TED-Ed
TED-Ed: Can you solve the alien pyramid riddle? | Henri Picciotto
Today is the anniversary of the best-worst day of your life. The best part was discovering a subterranean city on Mars. The worst part was when you lost contact with Earth. You and the other 99 scientists have spent the year engineering...
Bozeman Science
Torque
In this video Paul Andersen begins by discriminating between translation and rotational motion. He then explains how a torque is the product of the lever arm and the force perpendicular. The lever arm must be perpendicular to the axis of...
TED-Ed
TED-Ed: Can you solve the multiplying rabbits riddle? - Alex Gendler
After years of experiments, you’ve finally created the pets of the future – nano-rabbits! They’re tiny, they’re fuzzy ... and they multiply faster than the eye can see. But a rival lab has sabotaged you, threatening the survival of your...
SciShow Kids
The Coolest Machine Ever!
Jessi and Squeaks have a new invention to show you! They built it using what they know about simple machines and with a little inspiration from a cartoonist named Rube Goldberg!
TED-Ed
TED-Ed: Can you solve the multiverse rescue mission riddle? - Daniel Finkel
A bug in the superconductor system has trapped your team in 11 separate dimensions. Can you get them back home safely? -- It was a normal Tuesday at the superconductor, until a bug in the system caused your team to be trapped in 11...
Crash Course
How to Train a Brain - Crash Course Psychology
I'm sure you've heard of Pavlov's Bell (and I'm not talking about the Aimee Mann song), but what was Ivan Pavlov up to, exactly? And how are our brains trained? And what is a "Skinner Box"? All those questions and more are answered in...
SciShow Kids
Super Simple Machines: Levers
Levers are a simple machine that help us make work easier. But how do they work and how can you make one to help you? Check out this episode with Squeaks and Jessi to learn all about levers!
SciShow Kids
Need a Lift Try a Pulley!
Jessi and Squeaks just got a new telescope, and they can't wait to check out the night sky! But there's just one problem: it's too heavy to bring up the stairs into the observatory! Join them as they learn about a simple machine that can...
Bozeman Science
Simple Machines
Mr. Andersen explains the simple principles behind simple machines. He shows how the mechanical advantage of a simple machine can increase the input force. A brief discussion of work is also included.
Curated Video
How to Wear an Accordion
Howcast - Learn how to wear an accordion from musician / Broadway actress Katrina Yaukey in this Howcast video.
Curated Video
How to Replace a Front Bicycle Wheel
Howcast - Learn how to replace a front wheel from Silk Road Cycles' Brendon Nicholas in this Howcast bicycle repair and maintenance video.
Curated Video
Minecraft Tutorial: How to Make a Portable Cannon in Minecraft
Howcast - Learn how to make a Portable Minecraft cannon with this gameplay tutorial.
Curated Video
Minecraft Tutorial: How to Make a Lever in Minecraft
Howcast - Learn how to make a Minecraft lever with this gameplay tutorial.
Curated Video
Transformers Fall of Cybertron Walkthrough Part 19 - Chapter 6
Howcast - Check out part 19 and join the war between the Autobots and Decepticons in Activisions' newest release, Transformers: Fall of Cybertron
Curated Video
Jurassic Park The Game Walkthrough Episode 2 - The Cavalry - Part 3
Howcast - Check out part 4 and beat Episode 2: "The Cavalry" of Jurassic Park: The Game with this online demo of the third-person adventure .
Curated Video
How to Do Turfing Traces for Arms
Howcast - Learn how to do turfing traces for arms in this street dance video from Howcast.
Curated Video
How to Play Minor Chords on a Pedal Steel Guitar
Howcast - Learn how to play minor chords in this Howcast video about how to play a pedal steel guitar.
Curated Video
What Are Pedal Steel Guitar Splits?
Howcast - Learn what splits are in this Howcast video about how to play a pedal steel guitar.
Curated Video
How to Use the Knee Levers on a Pedal Steel Guitar
Howcast - Learn how to use the knee levers on a pedal steel guitar in this Howcast video.
Curated Video
How to Tune the Knee Levers on a Pedal Steel Guitar
Howcast - Learn how to tune the knee levers on a pedal steel guitar in this Howcast video.
Curated Video
What Is a Copedent?
Howcast - Learn what a copedent is in this Howcast video about how to play a pedal steel guitar.