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Brain-computer interfaces allow you to manipulate computers and machinery with your thoughts. Learn more about brain-computer interface technology.

Reproduction is a basic drive in all animals, including humans. Think you know what human reproduction is all about? Discover the biology of sex.

When you have an itch, what is happening under your skin? And, why does scratching make it go away?

Dissolvable stitches are a convenient medical marvel. How long does it take for stitches to dissolve?

Without memory, computers wouldn't be able to store data in any way. How much do you know about computer memory?

In built-in lawn sprinkling systems, there is a device called an anti-siphon valve. What is it for and how does it work?

What is a "smart card"? Learn how an embedded microprocessor in a smart card can authenticate your computer usage and data. Learn about smart cards.

The 1955 Lincoln Capri saw model-year improvements, but sales were dismal in an otherwise booming year. Learn all about the 1955 Lincoln Capri.

The 1951 Meteor Custom DeLuxe was Ford Motor Company's 'Canadianized' version of its namesake car. See pictures of this stunning convertible.

Ulcers can form inside your body and on your skin. Find out if ulcers can kill you at HowStuffWorks.

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