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Top 30 Smartest Animals in the World

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Humans aren't the only animals that can count, use logic, make tools or form lasting bonds with others. Meet 10 of the smartest creatures in the animal kingdom.

How PDAs Work

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PDAs give you big-time computing power on the go. Learn about PDA technology, get PDA buying tips, read PDA reviews and compare prices on popular PDA models.

How the Crusades Worked

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The Crusades were religious wars. Find out what triggered the First Crusade and how the pope persuaded people to go on a crusade.

Fourth of July Crafts for Kids

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Fourth of July crafts include art projects, games, and healthy treats. Learn about these activities for kids.

How Graphic Novels Work

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Graphic novels tackle tough subjects too complicated for traditional media. Learn more about how graphic novels work.

10 Tips for Telling Fact From Fiction

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It can be hard to tell fact from fiction. Here are 10 tips to help you tell fact from fiction.

How Amazon Echo Works

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Could Amazon Echo be the voice-controlled computer that will finally walk us into the future? Learn about the Amazon Echo at HowStuffWorks.

How LAN Switches Work

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We wouldn't get very far without LAN switches -- bedlam would break loose at each network junction. Learn how LAN switches work.

If you want to see a hologram, you don't have to look much farther than your wallet. But the most impressive holograms are large scale and illuminated with lasers or displayed in a darkened room with carefully directed lighting. Learn how a hologram, light and your brain work together make clear, 3-D images.

How the Census Works

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The U.S. census is a huge project bent on counting every U.S. resident. Find out about the changes for the 2020 census with HowStuffWorks.

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