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What Is an Isotope?

science.howstuffworks.com/isotopes.htm

You don't need to be a fan of chemistry to appreciate isotopes. They affect geology and medicine, too.

Ancient Babylonian Tablet May Show Early Trigonometry, But Some Experts Are Dubious

science.howstuffworks.com/math-concepts/babylon-tablet-plimpton-322-trigonometry.htm

A reinterpretation of an ancient Babylonian tablet shows that trigonometry might be 1,000 years older than thought. But there's some disagreement.

How to Play Checkers

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Want to know how to play checkers? Visit HowStuffWorks to learn how to play checkers.

How Tiny Houses Work

home.howstuffworks.com/tiny-house.htm

Tiny houses are gaining in popularity with people who want to live a more simple life. Find out why they're choosing tiny houses.

Tic-Tac-Toe Games for Kids

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Try these tic-tac-toe games for kids and experience a new twist on this classic game. Learn more about these tic-tac-toe games for kids.

Can You Guess the Board Game from the Pieces?

play.howstuffworks.com/quiz/can-you-guess-the-board-game-the-pieces

We've all played a board game at one point in our life, but how well have you been paying attention to the pieces? Take this quiz if you think you're an expert!

10 Biggest Malls in America

money.howstuffworks.com/biggest-malls-in-america.htm

Malls in America can be massive enough to contain hotels and ice rinks, in addition to the usual stores. Here are 10 of the biggest shopping malls in the U.S.

Food Fun: Fast Food Quiz

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You've probably been living under a rock if you haven't realized how unhealthy fast food can be, but do you know exactly how many calories were in that Double Six Dollar Burger you just ate? Find out that number and lots more in our fast food quiz.

Can You Pass This Incredibly Difficult Logic Test?

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So you think you're pretty good at solving riddles, puzzles and brain teasers, eh? It's time to really put your deduction skills to the test with this difficult logic quiz! Let's see how many you can get right!

Creating the Kranks Neighborhood

entertainment.howstuffworks.com/kranks.htm

Sometimes, reality just doesn't do the trick. To get the right feel for the movie "Christmas with the Kranks," filmmakers had to build a fake wintry Chicago neighborhood on a parking lot in California. See how they did it.

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