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How Blowtorches Work

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Blowtorches produce an exceptionally hot flame and harnesses that heat to mold and cut metal. Learn how the blowtorch revolutionized welding.

How Bonsai Works

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Bonsai is an ancient form of gardening that many consider to be art. Learn more about bonsai and the rich history that comes with it.

How Concrete Roofs Work

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Concrete roofs are exactly what they sound like: solid slabs of concrete capping the top of homes. How can concrete roofs protect you from big storms?

How Denim Insulation Works

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Do you love your jeans so much that you want them to stay in your house forever and ever? Then you're going to love denim insulation, the blue way to go green.

How Dimmer Switches Work

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A regular light switch takes care of off and on. A dimmer switch handles off, on and everything in between. Find out what this clever switch does with electrical current.

How Drain Cleaners Work

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You've probably experienced a clogged drain before and reached for the drain cleaner. But how do drain cleaners work?

How Efflorescence Works

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Even Michelangelo had to deal with efflorescence -- white deposits that appear on masonry -- while painting the Sistine Chapel. What causes this unsightly problem, and how can you address it if it shows up on the surfaces of your home?

How Fallout Shelters Work

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Fallout shelters can help protect you from radiation from a nuclear attack. Learn how fallout shelters work, and how to build a fallout shelter.

How Fireplaces Work

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Fireplaces are known for their warmth, but they can sometimes lose more heat than they provide. Learn about fireplaces at HowStuffWorks.

How Fluorescent Lamps Work

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You see fluorescent lighting all over the place -- in offices, homes, stores, dressing rooms. But there's a certain mystery to it. Find out what's going on inside these glowing tubes!