Howcast - Learn how to treat a leaking heart valve from Dr. Dennis Finkielstein in this Howcast video.

Howcast - Learn how a toilet tank works from Master Plumber John Wood in this plumbing repair video from Howcast.

Howcast - Learn three important tips on buying new plumbing fixtures from Master Plumber John Wood in this Howcast video.

Howcast - Learn the worst three things an amateur plumber can do from Master Plumber John Wood in this plumbing repair video from Howcast.

Howcast - If you are craving that flame-broiled taste but you are out of propane, follow this advice to heat up that grill in a snap.

Howcast - A toilet that keeps running or that won't flush properly can cost plenty of money while wasting water. Learn how to roll up your sleeves and fix the flushing mechanism with minimal effort.

Howcast -Learn how to fix a leaky toilet in this Howcast plumbing repair video with Tim Flynn.

Does banging in the pipes sound like someone's running a sledge hammer? Try this easy do-it-yourself fix.

If the faucet valve for your tub and shower malfunctions, use the steps here to make the repair.

Now that you've laid the groundwork in part 1, finish the sprinkler system installation with part 2 of the process.

Animation showing treatment to repair or replace the mitral valve

If you’re just too fast, too young or too shreddy to picture yourself on a Niner, picture yourself on the new RIP. It’s an unapologetic thrashing machine that happens to come in both a 29- and 27.5-inch version.

The dump truck helped the excavator at the construction site - it took away the excess earth remaining from the foundation pit. But the truck body stopped lowering... Doctor MacWheelie is already waiting for us in his repair shop to find...

This video showcases a complex experimental procedure that saved Fred Grant's life by replacing his weak heart valve without the need for open-heart surgery. The surgeons used a new style valve, compressed it to the width of a pencil,...

Tom Thomas notices that the water in the toilet keeps running. Simka and Nolik say that they shouldn’t mess with the bowl because Fixies can get flushed down the drain. They call Papus for help and ask Tom Thomas to guard the door to...

Permaculture instructor Andrew Millison lays out some of the basics you need to know to design a gravity irrigation system.<br/>

Do you know how transistors work? What is it about transistors that make them the building block of so many electronic items, like computer, laptops, smartphones and tablets these days? What is a transistor? The transistor is arguably...

An electronic component that allows current to flow in only one direction.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

The heart powers everything you do. It pumps without you thinking about it, and beats over a billion times in an average lifetime. But how does it work? Biology - Human Body - Learning Points. The heart is the hardest working muscle in...

Join Alexander Bianchi, an ice farmer, as he transforms cliffs into artistic ice climbs using innovative techniques in Uncompahgre Gorge.

Explore the fascinating history and technological advances behind two kitchen staples: refrigerators and pressure cookers. Discover how these inventions have revolutionized our food storage and cooking practices. Learn how...

At Loughborough University Sports Technology Laboratory, researchers are focused on enhancing athletic performance by developing breathing muscles. By using a device with a valve that opens and closes quickly, the lungs are forced to...

Dr. Forrester discusses various types of simple machines, such as the lever, pulley, wedge, wheel and axle, screw, and inclined plane.

Permaculture Elder Tom Ward takes us on a 10 minute animated tour of Wolf Gulch Farm in Southern Oregon, USA. It was designed using Permaculture principles and laid out using Keyline patterning. Tom's narrated journey explores water...