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How Urban Planning Works

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Urban planning works to design a city so that it can be used effectively by its people. Find out more about how urban planning works.

How Urban Sprawl Works

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Urban sprawl occurs when people move from cities to the areas around them and develop the land with houses, businesses and roads. Learn about urban sprawl.

How Vampires Work

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The vampire legend has been evolving for centuries. The most common image of the vampire was born in Bram Stoker's novel "Dracula" in 1897, but the stories go back further than that. Learn all about the undead.

How Van de Graaff Generators Work

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Van de Graaff generators are famous for producing static electricity. Learn about Van de Graaff generators and find out why Van de Graaff generators were invented.

How Venus Flytraps Work

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Plants that eat other creatures? It sounds like a genetic experiment gone awry. But there's actually nothing unnatural about it; carnivorous plants have been around for millions of years.

How Viagra Works

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Viagra is one of the best-known drugs of all time. Nearly every adult in America has heard of the drug and can tell you what it does. Find out how this high-profile medication works its magic.

How Virgin Galactic Works

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Virgin Galactic is the first commercial space tourism company, offering flights to space. Read about Virgin Galactic.

How Virtual Reality Military Applications Work

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Virtual reality military applications include battlefield simulations and military vehicle simulations. Learn about virtual reality military applications.

How Viruses Work

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Influenza, Ebola and COVID-19 are all viruses. Find out what a virus does to your body and how to decrease your chance of exposure.

How Vitaminwater Works

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Vitaminwater is a new product from Glaceau that combines distilled water with vitamins, herbs and flavors. Learn about Glaceau's Vitaminwater product.