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How the La Brea Tar Pits Work

science.howstuffworks.com/environmental/earth/archaeology/la-brea-tar-pits.htm

A sculpted mammoth shows visitors to the La Brea Tar Pits what these ancient animals might have looked like, but the pits themselves have looked the same for thousands of years. How did they form, and what discoveries lie beneath the sticky surface?

How the Large Hadron Collider Works

science.howstuffworks.com/science-vs-myth/everyday-myths/large-hadron-collider.htm

To understand the universe better, scientists from all over the world are going to harness the power of an enormous machine -- the Large Hadron Collider.

How the Living Earth Simulator Will Work

science.howstuffworks.com/environmental/earth/geophysics/living-earth-simulator.htm

You may have noticed that our planet isn't terribly predictable. Could a German polymath and an unfathomable pile of data change that?

How the MQ-9 Reaper Works

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Early unmanned aerial vehicles (UAVs) primarily carried out reconnaissance missions in war zones, but the Reaper packs some serious heat. Is there anything more foreboding than a drone with a Hellfire missile?

How the Machine Gun Revolutionized Warfare

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The invention of the machine gun forever changed the battlefield. While soldiers once had to reload after a single shot, they now can fire hundreds of rounds per minute without a single pause.

How the Mars Rovers Work

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Of course we want to go to Mars. Until we figure it out though, roving robots with names like Spirit, Opportunity, Sojourner and Curiosity are our best bet for digging up dirt on our nearest planetary neighbor. Want to go along for the ride?

How the Metric System Works

science.howstuffworks.com/metric-system.htm

Ever heard of a little unit called a femtometer? Can you tell us how much you weigh -- in petagrams? We know you can't, so hurry up and start reading. We have work to do.

How the Mohs Scale Ranks Hardness

science.howstuffworks.com/environmental/earth/geology/mohs-hardness-scale.htm

The Mohs hardness scale is used by geologists and gemologists as a way to help identify minerals using a hardness test. How does it work?

How the Moon Works

science.howstuffworks.com/moon.htm

The moon is the Earth's only natural satellite and the closest celestial object. Learn about the moon and some of the theories about the moon's origin.

How the Navy SEALs Work

science.howstuffworks.com/navy-seal.htm

Navy SEALs complete some of the most dangerous U.S. military missions. Learn about how the Navy SEALs work and what it takes to become a SEAL.

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