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Just How Many Galaxies Are in the Universe?
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Galaxies are large systems of stars, gas, dust and dark matter that orbits a center and is bound by gravity. Learn about the characteristics of galaxies.
10 Amazing Ancient Egyptian Inventions
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There may be no greater tribute to a society's ingenuity and vision than the Great Pyramid of Giza in Egypt. What other cool stuff did the ancient Egyptians invent?
What Did Benjamin Franklin Invent? Much More Than Bifocals
science.howstuffworks.com/innovation/famous-inventors/10-ben-franklin-inventions.htm
Between running a print shop, engineering the U.S. postal system, and helping sow the seeds of the American Revolution, Benjamin Franklin also found time to draw up a vast collection of new devices. What are some of his most enduring inventions?
How Will We Colonize Other Planets?
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We've been cruising to and from the International Space Station since 2000. Isn't it about time we started moving on to other space destinations and establishing human outposts?
10 Plants Lost to History
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Are trees and shrubs as cute as pandas? As awe-inspiring as whales? Maybe not, but many are in danger of going the way of the dodo - just like countless leafy greens before them. Learn about some amazing plants we lost to history.
10 Technologies That Help Buildings Resist Earthquakes
Bend but don't break: That's the idea behind many of these temblor-thwarting technologies. They may even allow a building's inhabitants to walk out unharmed and start picking up the pieces after the earthquake subsides.
10 Fastest Things in the Universe
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We're about to power through some of the speediest stuff this universe - both in the real world and in fiction - has to offer.
How Controlled Detonations Work
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It's a delicate, hair-raising business that usually ends in triumph, but can, in certain circumstances, end in tragedy. Welcome to the world of a bomb squad technician. It's explosive.
10 Insane Disguises That Actually Worked
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We're not talking about one of those laughable get-ups that celebs don when they want to go incognito for a latte. Nope, we're talking elaborate disguises -- from operatic to scientific.
How Floating Bridges Work
science.howstuffworks.com/engineering/structural/floating-bridge.htm
Bridges span the gap and help us get from point A to B, but who knew they could float, too? Find out what the deal is with floating bridges in this article.