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I've heard differing reports on what to do when brakes lock. What's the right thing to do? What should I do when my brakes lock?

Diets: You've tried them all, with mixed results. At least you know all about diets ... or do you? Test your diet IQ with this weight loss quiz.

Are new moles always a sign of cancer? Find out if new moles are always a sign of cancer at HowStuffWorks.

Can I wash my face too much? Find out if there is such a thing as washing your face too much at HowStuffWorks.

A power-cube transformer is used for just about every electronic device, but what's on the inside? Take a look inside a power-cube transformer.

How do the lightsabers in the "Star Wars" movies work?

If a URL does not include "www," is it not on the "Web"? What is the difference between sites that do and don't require the "www" in the URL?

What is the churning sound I hear from my hard drive whenever it is retrieving data?

I would like to know how airplanes can fly upside down and do loops. How does the fuel get to the engine if the plane is upside down?

How do VHS tapes prevent you from bootlegging a copy of a movie? Find out how Macrovision works.

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