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How Tangrams Work

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Tangram puzzles are made up of geometric pieces placed to create different shapes. Learn how Tangram puzzles work at HowStuffWorks.

Can You Identify These Small Countries by Their Outlines?

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Not every country can be big, so we're going to feature some small ones that really make an impact. But can you identify them only from an outline? Let's find out!

How small can CPUs get?

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Small CPU size depends on the number of transistors that can physically be crammed inside. Learn more about how to make a small CPU.

How to Remove Ammonia Spots

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Ammonia stains can leave you feeling like you've been stung. There are proven methods to remove ammonia stains safely and effectively. Find out how to get rid of ammonia spots and stains.

Taco Cat: It's a Palindrome!

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Palindromes are words, phrases or even dates that are spelled the same forward and backward. They don't always make tons of sense, but they're still fun.