In 1327, a monk named Richard of Wallingford drafted plans for an engineering marvel: one of the very first truly mechanical clocks in the world, which helped to usher in a complete reinvention of humanity's perception of time...

Plutonium powered robot car! With a laser gun! That's (kind of) what's hurtling through space right now as part of NASA Mars Science Laboratory heads for the Red Planet. Hank walks you through this historic mission, with the help of some...

No matter how we make electricity, it takes up space. Coal requires mines, and plants to convert it into electricity. Nuclear power takes uranium mines, facilities to refine it, a reactor, and a place to store the spent fuel safely....

How DO you make a digital clock?

Who invented microphones, PCs, and video game consoles? In honor of Black History Month, Hank talks about some African Americans scientist/inventors who've helped make all our lives more awesome.

Have you ever wondered how you can turn the light on in your house? Or maybe why you can push a doorbell and it makes a sound? This happens because of circuits! Join Jessi and Squeaks as they learn how circuits work, and make their very...

Howcast - Check out part 41 of this walkthrough for the third person action shooter "Warhammer 40K Space Marine" and beat Chapter 4 with this online demo.

Howcast - Check out this walkthrough for the third person action shooter "Warhammer 40K Space Marine" and beat Chapter 4 with this online demo.

Howcast - Check out part 40 of this walkthrough for the third person action shooter "Warhammer 40K Space Marine" and beat Chapter 4 with this online demo.

Howcast - Check out part 32 of this walkthrough for the third person action shooter "Warhammer 40K Space Marine" and beat Chapter 4 with this online demo.

Howcast - Check out part 22 of this walkthrough for the third person action shooter "Warhammer 40K Space Marine" and beat Chapter 2 with this online demo.

Howcast - Check out part 15 of this walkthrough for the third person action shooter "Warhammer 40K Space Marine" and beat Chapter 2 with this online demo.

Howcast - Check out part 16 of this walkthrough for the third person action shooter "Warhammer 40K Space Marine" and beat Chapter 2 with this online demo.

Video games have taken it to the next level, but has your computer? Get graphics so good you'll feel like you're there with these simple steps.

It is very difficult to harness power from lightning power because of its volatile nature, sporadic appearance and uneven geographical distribution. Lightning is one of the incredible forces of nature. A single bolt of it carries a few...

An electrical conductor that connects to a non-metallic part of a circuit.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

Discover that the lights of the Eiffel Tower form part of an electrical circuit.
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Physical processes -Electricity and magnetism - Elect
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Learning Points
Circuits usually...

Learn how to identify universal circuit symbols.
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Learning Points
Electrical circuits are draw
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The High Magnetic Field Laboratory at Los Alamos Research Laboratory houses the most powerful magnet in the world, generating a magnetic field over a million times greater than the Earth's. This magnet is used by researchers from various...

This video explores five fun facts about circuit components.

This video is answering the question of what is a power source in a circuit.

Make your own automatic plant watering system with an Arduino, pump, and soil moisture sensor. Written instructions, including a parts list, circuit diagram, and example code, are available on the Science Buddies