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How Breast Pumps Work

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Breastfeeding is a healthy way to feed young children, but busy schedules and other factors may keep mom from being available when baby's hungry. Breast pumps can help bridge that gap.

How Bridges Work

science.howstuffworks.com/engineering/civil/bridge.htm

Bridges support tremendous weight, span huge distances and all the while withstand the greatest forces of nature. Find out about these engineering feats (as well as some of the flaws).

How Brunelleschi Built the World's Biggest Dome

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The dome of the Cathedral of Santa Maria del Fiore is the largest masonry dome ever built and still defines the city of Florence over 500 years later.

How Building Implosions Work

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Safe, professional building implosions combine mathematics, intuition and sheer explosive power. Find out how the experts bring down huge structures without damaging the buildings nearby.

How Bulletproof Are Bulletproof Vests?

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Without question, they save lives - but they aren't 100 percent failsafe.

How Bunker Busters Work

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Bunker busters penetrate deep into fortified bunkers or underground compounds before exploding. Learn about bunker busters and how they're used in combat.

How C-4 Works

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C-4 is a powerful explosive that's used in terrorist attacks all over the world. Find out what C-4 explosives are and what C-4 explosives can do.

How CAT Scans Work

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CAT scans take X-ray imaging to a whole new level. Find out how a CAT scan machine uses "slices" to form a 3-D computer model of a patient's insides.

How CFL Bulbs Work

science.howstuffworks.com/environmental/green-tech/sustainable/cfl-bulb.htm

CFL bulbs are eco-friendly alternatives to traditional bulbs. Visit HowStuffWorks to learn about CFL bulbs.

How CIPA Works

science.howstuffworks.com/life/inside-the-mind/human-brain/cipa.htm

You might think that not being able to feel pain would be a blessing. No tears, no painkillers, no lingering aches. But really, not being able to feel pain is dangerous.