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...
Curated Video
French Muslim leader condemns attack on French newspaper
The president of the Union of French mosques strongly condemned Wednesday's attack on the Paris offices of a satirical newspaper in which 12 people were killed.
Mohammed Moussaoui, was speaking from the Vatican in Rome where he was...
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
Project Definition: Three Big Questions about Your Project
There's more to Project Definition than just Goals, Objectives, Scope, Dependencies, and Constraints. There are things we rarely talk about. In fact, there are three vital questions we rarely even ask ourselves. Yet they are as important...
Curated Video
Levers, Wheels, Pulleys
There are only six basic types of machine. Discover more about levers, wheels and pulleys: what are they and why are they useful? Physics - Forces - Learning Points. Archimedes designed simple machines to move and lift objects. The...
Curated Video
Gears and pulleys – Did you know?
Did you know that a seesaw, a wheelbarrow and a fishing rod are all types of lever? Physical processes - Force and motion - Gears and pulleys Learning Points A lever is a stiff bar that pivots on a fixed point. A Twig Tidbit Film - Did...
Curated Video
How the Egyptians built the pyramids
Discover how a simple system of pulleys helped the Egyptians build some of the wonders of the world. Physical processes -Force and motion - Gears and pulleys Learning Points Pulleys reduce the amount of force needed to move something....
Curated Video
Cycling to school
Discover how bike gears make pedalling easier. Physical processes -Force and motion - Gears and pulleys Learning Points Gears make pedalling a bike easier. A Twig Curriculum Film. Delivering key learning points. Get straight to the facts...
Curated Video
Force and Motion: Meaning of Levers
By the end of this learning object, the student will be able to: Explain the meaning of levers.9523
Wonderscape
The Power of Simple Machines: How Levers Make Our Lives Easier
Discover the fascinating world of simple machines with a focus on levers, one of the oldest and most fundamental tools used by humans. Learn how levers enhance our strength, change the direction of force, and make it possible to lift...
Curated Video
Machining an Upgrade for my Electric Guitar
In this video, Mike machines a Brass volume knob for his electric guitar.
Curated Video
Compound Machines
Dr. Forrester describes compound machines and the simple machines that make them.
Curated Video
Types of Simple Machines
Dr. Forrester discusses various types of simple machines, such as the lever, pulley, wedge, wheel and axle, screw, and inclined plane.