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What if an astronaut went on a space walk without wearing a space suit?

science.howstuffworks.com/suitless-space-walk.htm

Because an Earth-like environment is created within a spacesuit, it allows you to walk around in space in relative safety. But outer space is an extremely hostile place and could kill you if you aren't protected.

What is string theory?

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String theory tries to bring relativity and quantum physics into one general theory of everything. Learn about string theory in this article.

How Asteroid Mining Will Work

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Asteroid mining is explained in this article. Learn about asteroid mining.

What Is Pi?

science.howstuffworks.com/math-concepts/pi.htm

Whether the circle is as big as planet Mars or as small as a tennis ball, the ratio of its circumference divided by its diameter will always equal pi (3.14). But why?

Can You Answer These Basic Questions About the Solar System?

play.howstuffworks.com/quiz/can-answer-these-basic-questions-about-science

This quiz is out of this world. Are you ready to find out how much you really know about the Solar System? Will you be a shining star or crash down to earth?

5 Worst Places to Be in a Thunderstorm

health.howstuffworks.com/diseases-conditions/death-dying/5-worst-places-to-be-in-thunderstorm.htm

Do you know the worst places to be in a thunderstorm? Golf course? On water? See our list of five worst places to be in a thunderstorm to learn more.

10 Scare-inducing Moments in History

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From serial killers to natural disasters, many events in our history have stoked fear among the masses. Here are 10 fear-stoking moments.

How Infrared Grills Work

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Infrared grilling introduces less hot air and more radiating heat to food than traditional grills. But are they really better? Stronger? Faster?

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