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Metal vs. Steel: Is There a Difference?

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Is there a difference between metal and steel? Find out whether the difference between metal and steel at HowStuffWorks.

The Land Down Under: The Australian Geography Quiz

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You may already know that the Australian continent includes the Australian mainland and nearby islands, but how well-versed are you in some of the finer details of its geography? Test your knowledge of the "land down under" with this Australian geography quiz.

How the Bessemer Process Changed the World of Steelmaking

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Uncover the impact of the Bessemer process, which revolutionized steel production and shaped modern society.

The Lost Art of True Damascus Steel

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All steel is not the same, and Damascus steel has a reputation for being the best. But is today's Damascus steel the same as that forged centuries ago?

10 Inventions by Thomas Edison (That You've Never Heard Of)

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It's common knowledge that Thomas Edison invented the incandescent light bulb and the phonograph, but did you know he also developed concrete furniture and a phone to communicate with the dead?

Do You Have a Fear of Long Words?

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The fear of long words is ironic, as the name is ridiculously long. What gives?

How Deep Are the Great Lakes? And Why Are They Great?

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The Great Lakes are named so for several reasons. HowStuffWorks looks at why the Great Lakes are so great, including their impressive depths.

5 Green NASA Inventions

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NASA's technological innovations haven't just gotten us to the moon and beyond -- some have also helped make life a little greener here on Earth. What are five surprisingly grounded technologies spearheaded by NASA?

What's a uranium centrifuge?

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Iran has announced its activation of a second set of uranium centrifuges. These machines are at the core of the uranium-enrichment process. Find out where the centrifuge fits into the equation.

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