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How Gold Works

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We love it. We wear it glittering around our necks and sparkling at our ears, wrists and feet. We pass it down to our children and hoard it in secret stashes. Why is this precious metal so prized?

How Hulu Works

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Hulu lets you watch TV shows and movies online for free. So what's the catch? Is there a catch? See how Hulu works and Hulu's challenges.

How Circumcision Works

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Circumcision is a common medical practice in many places, but where did the tradition of circumcision even come from? Should we rethink circumcisions?

Imagine walking through a field and stumbling upon scads of corpses, all in various states of decomposition. It's not the setting for your next nightmare, but rather a very real discipline of forensic anthropology.

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?

1957-1959 Ford Ranchero

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The 1957-1959 Ford Ranchero has its beginnings in the Australian Ford Utility. Learn more about the history of the 1957-1959 Ford Ranchero.

Michelangelo Biography

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Michelangelo's biography is full of spiritual, political, and artistic struggle, as well as beautiful artwork. Learn more about this genius.

How Does an Invisibility Cloak Work?

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With optical-camouflage technology, the invisibility cloak is a reality. Learn what it is.

How Fear Works

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Fear is the brain's reaction to a stimulus where chemicals are released that raise the heart rate. Learn about fear and the different fear responses.

10 Car Shopping Tips

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Knowing what you want -- or need -- before you start making the rounds of dealerships can save both time and money.

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