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Explain It To Me (for Kids)
Last Updated: Sep 19th, 2011 - 19:28:10


Workings of War
By ClassBrain Staff
Jul 25, 2011, 7:06pm

Since the Middle Ages, engineers have engaged in a battle for the sky. Read about the skyscrapers fight against gravity, how they stay standing and see how the wind affects these mighty buildings.

How the U.S. draft works – If you have ever wondered if anybody you know could be drafted, read about who qualifies, registration and special classifications here.
How night vision works – Are you seeing red? Find out how night vision works, when it’s used and why it is so important to today’s world.

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