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10 Cool Things About Carl Sagan
science.howstuffworks.com/dictionary/famous-scientists/10-cool-things-carl-sagan.htm
He is famous for a phrase he never said, for wearing turtlenecks and for hosting the original 'Cosmos' TV series. As enthusiastic about the stars as he was about marijuana, Carl Sagan led a very surprising life.
How Sunglasses Work
science.howstuffworks.com/innovation/everyday-innovations/sunglass.htm
Whether you're hitting the surf or the slopes or just spending a day on the lake, sunglasses are a must-have accessory. Find out if the $10 sunglasses are as good as the high-cost ones.
How Chaos Theory Works
science.howstuffworks.com/math-concepts/chaos-theory.htm
Has this ever happened to you? The meteorologist calls for a massive snowstorm, but the flakes fail to arrive. Chaos theory can shed light on why forecasts fail (and why our orderly world may not be so orderly after all).
How Telescopes Work
science.howstuffworks.com/telescope.htm
For centuries, curious observers have probed the heavens with the aid of telescopes. Today, both amateur and professional scopes magnify images in a variety of ways.
HowStuffWorks Newsletter Quiz
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If you took one of our recent newsletter quizzes, you've come to the right place for the answers.
Russian Army Repels Hitler's Forces: August 1942-January 1943
history.howstuffworks.com/world-war-ii/russian-army-repels-hitlers-forces.htm
The Russian Army repelling Hitler's forces put an end to the bloodiest battle in history. Learn about it and other World War II events of this period.