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How the Iowa Stored Energy Park Will Work

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The Iowa Stored Energy Park will use wind to generate electricity and will store unused wind underground. Learn about the Iowa Stored Energy Park.

5 Farming Technologies That Changed the World

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Farming technologies have allowed the world to be fed, even though most people no longer farm. Only 2 percent of Americans are farmers, versus 90 percent in the 1700s. Which tools and technologies have had the most impact on farming and why?

How to Build an Outhouse With a Composting Bucket Toilet

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You can't flush and forget with a composting bucket toilet, but you can rest easy knowing you're turning a dangerous waste product into something potentially beneficial. But what are the logistics, and how do composting toilets differ from latrines?

How to Tune Your Own Car for Better Gas Mileage

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How to tune your own car for better gas mileage. In this article, learn how to tune your care for better gas mileage.

5 of Earth's Highest Deserts

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Not all deserts have sand and they're certainly not all hot. They're just extremely dry and have little vegetation. That means deserts are located all over the planet, including at super-high elevations.

How the World Trade Center Slurry Wall Works

science.howstuffworks.com/engineering/structural/world-trade-center-slurry-wall.htm

It's been compared Jerusalem's Wailing Wall. What purpose did the slurry wall serve the World Trade Center, and what is its significance now?

Should we be worried about the dead zone in the Gulf of Mexico?

science.howstuffworks.com/environmental/earth/oceanography/dead-zone.htm

The Dead Zone is a vast area off the Gulf of Mexico, larger than several U.S. States, that is deadly to marine life. Learn more about the Dead Zone.

Portland Cement: A Concrete History With Structural Integrity

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Invented in 1824, Portland cement remains prominent in modern construction. Learn about the hydraulic binder's raw materials and applications.

Not Just Rocks: The Geology Quiz

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Geologists study the processes and substances that form Earth. Most of those processes happen over millions of years, but this quiz only takes a few minutes! Find out how rock solid your knowledge of geology is.

How does public transportation help the environment?

science.howstuffworks.com/transport/engines-equipment/public-transportation-help-environment.htm

In January 2004, the citizens of Milan, Italy, were preparing for a strike that would shut down all public transportation. Since an estimated 28 percent of greater Milan's 3 million populace relied heavily on public transit, the strike meant gridlock for most of the city.

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