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How Missile Defense Systems Will Work

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What once was "Star Wars" under Reagan is now National Missile Defense under Bush. Learn more about the technology behind the system.

How Missiles Work

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Missiles are widely-used in the military because they can reach targets from miles away. Learn about all types of missiles, including cruise missiles, stinger missiles, patriot missiles and even missile defense systems.

How Moissanite Jewels Work

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Moissanite is explained in this article. Learn about moissanite.

How Molecular Gastronomy Works

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Molecular gastronomy is the art and science of selecting, preparing, serving and enjoying food. Learn about molecular gastronomy at HowStuffWorks.

How Motion-powered Electronics Work

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Motion-powered electronics are discussed in this article from HowStuffWorks. Learn about motion-powered electronics.

How Much Does a Semi Truck Weigh?

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So, how much does a semi truck weigh? We'll explore what a semi truck weighs and how weigh stations work.

How Much Fuel Does an International Plane Use for a Trip?

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Although the amount of fuel may seem high, when you do the math, it's actually not so bad.

How Much Water Is on Earth?

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Water is one of the most abundant substances on the planet. About 70 percent of our planet is covered by oceans, but just how much water is there on Earth?

How Much of Our Brain Do We Use? Debunking the Myth

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It doesn't exactly seem like something the human body would do, let a large portion of itself go to complete waste. Is it true that most of your brain is on permanent hiatus?

How Much of the Ocean Has Been Explored? Shockingly Little!

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You might be surprised at how little of the world's oceans scientists have investigated.