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What If Earth's Core Cooled Down?

science.howstuffworks.com/science-vs-myth/what-if/what-if-earths-core-cooled-down.htm

The core of our planet is about as hot as the sun. Could it ever cool down? That's one thing you don't want to happen.

How Dark Matter Works

science.howstuffworks.com/dictionary/astronomy-terms/dark-matter.htm

For decades, stargazing scientists have been facing their own darkness on the edge of town as they try to explain one of astronomy's greatest mysteries: dark matter. Have they been successful, or will the universe carry its secrets for a long time?

A Rule of Thumb Can Save You Tons of Time

people.howstuffworks.com/rule-of-thumb.htm

Let's talk about an expression you've probably heard before: "rule of thumb." This phrase is a handy way of saying, "Here's a general guideline that works in most cases."

Ridiculous History: The Great Moon Hoax of August 1835

history.howstuffworks.com/historical-events/ridiculous-history-the-great-moon-hoax-1835.htm

On Aug. 25, 1835, The New York Sun ran the first of several newspaper columns on the moon's geography, vegetation and humanoid inhabitants. There was just one problem.

Why do we have 10 fingers and 10 toes?

health.howstuffworks.com/human-body/parts/why-do-we-have-10-fingers-and-10-toes.htm

When a child is born, the first thing a parent checks is how many fingers and toes he or she has. Learn why we have 10 of each at HowStuffWorks.

Why do antibiotics make you sensitive to the sun?

health.howstuffworks.com/medicine/medication/antibiotics-sensitive-to-sun.htm

Sun sensitivity is a common side effect of antibiotics. Find out why antibiotics make you sensitive to the sun at HowStuffWorks.

What's the difference between a fruit and a vegetable?

recipes.howstuffworks.com/difference-between-fruit-and-vegetable.htm

The difference between a fruit and a vegetable may seem simple -- if you're a botanist. Learn how to tell the difference between a fruit and vegetable.

Which Astronomical Body Are You?

play.howstuffworks.com/quiz/which-astronomical-body-are-you

Space is full of amazing and beautiful creations. With all of your amazing feats and remarkable personality traits, which astronomical object do you measure up to?

This 'Enchantress of Numbers' Was the World's First Computer Programmer

history.howstuffworks.com/historical-figures/this-enchantress-numbers-was-worlds-first-computer-programmer.htm

Ada Lovelace was the daughter of famed poet Lord Byron. But she moved out of her father's shadow to make a name in numbers, not words.

Could a Platypus Poison Me?

animals.howstuffworks.com/mammals/platypus-poison.htm

Platypus poison incapacitates competing male platypuses during mating season. Learn about platypus poison and other odd platypus features.

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