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Top 10 Space Conspiracy Theories
science.howstuffworks.com/space-conspiracy-theory.htm
Space conspiracy theories feature hoaxes, government cover-ups and intelligent aliens. Check out our list of the top 10 space conspiracy theories.
Can You Identify All of These Coniferous Trees?
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Conifers conjure up winter scenes with snow and the winter holiday season. But did you know there are some coniferous trees that can't handle the snow? There are even some that thrive in arid regions! If you think know your cones, then take this quiz!
10 Ways to Stop a Killer Asteroid
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Killer asteroids are all fun and games -- until they're headed for earth. Luckily, scientists have come up with 10 ways to stop a killer asteroid.
How Online Training Works
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Driver safety, employee training and college courses are now being offered in a virtual environment. Learn how these virtual classrooms work.
The Simple Difference Between Ballistic Missiles and Cruise Missiles
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Despite the phrase "going ballistic," the term "ballistic" refers to how a missile travels through the air, not its explosive capability.
Is the American Flag Still on the Moon? Objects Astronauts Left Behind
science.howstuffworks.com/question188.htm
Apollo astronauts left a lot of stuff behind on the moon. Can you see any of that from Earth, even with a telescope?
Each Year Spiders Eat Millions of Tons of Food More Than Humans
animals.howstuffworks.com/arachnids/spiders-eat-millions-tons-food-more-humans-annually.htm
Spiders not only eat more meat than humans every year, they also spend a lot of time getting eaten themselves.
Chloroplasts Are the Plant Cells That Manufacture Energy
science.howstuffworks.com/life/cellular-microscopic/chloroplasts.htm
Chloroplasts are where some of the most miraculous chemistry on Earth goes down.
Meet Gigantopithecus, the Extinct Giant Orangutan in 'The Jungle Book'
animals.howstuffworks.com/extinct-animals/extinct-giant-orangutan-gigantopithecus-jungle-book.htm
The character of King Louie gets a serious primate upgrade in the new Disney live-action-meets-CGI film. Did the ape also serve as inspiration for sasquatch and yeti?
How Dyson Spheres Work
science.howstuffworks.com/environmental/energy/dyson-sphere.htm
Could the source of Earth's future energy come from an ambitious idea to encircle the sun with technology? Maybe, but it's a concept that's a long way from today's reality.