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How Laser Communication Works

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When speed is everything and light marks the universe's speed limit, lasers are bound to be the answer. At least, that's what NASA and a bunch of Wall Street types are betting on.

What Are Mines?

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Underground mining has come a long way from the days of men with pickaxes and canaries. It relies much more heavily on machinery that makes it much safer than in the past. Which techniques are used in mining today?

Are You Smart Enough to Name These Disney Characters?

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Throughout the years, more than a few Disney characters have been created. If you think you're able to keep up with all of their names and faces, then you'll have no trouble acing this one. Take the quiz to see how well you know them!

How Aluminum Works

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Aluminum is used in many products, from pots and pans to light bulbs and power lines. Learn how aluminum went undiscovered for so long.

How to Install Weather Stripping

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Installing weatherstripping can help to keep you warm all winter long and can lower your energy bills. Learn how to install weatherstripping.

How to Remove Cherry Stains

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Cherry stains can make doing your laundry the pits. These spots can be stubborn once they set in. Learn how to remove cherry stains and save your most treasured items.

How to Remove Prune Stains

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Prunes are a fiber-rich fruit usually eaten dried. They're good for you, but not for your carpet, clothing, or surfaces. Learn stain removal tips to keep your household and clothing free of prune spots.

Melons: Natural Weight-Loss Food

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Melons all have a soft, sweet, juicy pulp and superb taste. Learn about melons, weight loss, and healthy diets.

How to Replace a Wall Switch in 10 Steps

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Wall switches help us turn on and power a wide variety of lights, fixtures and appliances. But what if a wall switch were to stop working? Learn how to replace a wall switch with the information in this article.

What are the brake tools needed for brake tests?

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What are the brake tools needed for brake tests? Visit HowStuffWorks to learn about the brake tools needed for brake tests.

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