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How the Iowa Stored Energy Park Will Work

science.howstuffworks.com/environmental/green-science/iowa-stored-energy-park.htm

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

Can You Name All These British Landmarks?

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Can you tell the difference between the gorgeous old church where Princess Diana was married and the gorgeous old church where Will and Kate wed? Take our quiz to see how many of these British landmarks you can name!

10 Boom Towns that Went Bust

money.howstuffworks.com/10-boom-towns-that-went-bust.htm

Some towns boom but eventually bust economically. Learn about 10 boom towns that went bust at HowStuffWorks.

How Tunnels Work

science.howstuffworks.com/engineering/structural/tunnel.htm

Constructing a tunnel is one of the most complex challenges in the field of civil engineering. Learn about the basics behind tunnels.

Can You Name the States From Smallest to Largest?

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For this quiz, size does matter, and you're gonna have to know a thing or two about land plots to even think of passing. We'll be impressed if you can tell us where Delaware lands on this quiz.

Can You Identify All These English Counties by Just a Map Outline?

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There are about four dozen to choose from - but if you know the shape of the country, you can probably figure out quite a few. Let's see how you do with just an outline!

¿Puedes adivinar todos los 50 estados a partir de una imagen de su contorno?

play.howstuffworks.com/quiz/can-you-identify-all-50-states-just-a-map-outline-can-you-sp

¿Sacaste una A en la clase de geografía? ¿Conoces los lemas estatales y los famosos puntos de referencia que hacen únicos a casa estado? ¡Demuéstralo al desafiarte con este quiz!

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