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Since Sandy Hook, Conspiracy Theories Have Gone Mainstream

history.howstuffworks.com/historical-events/conspiracy-theories-sandy-hook-news.htm

Conspiracy theories are part of a dangerous misinformation crisis that has been building for years in the U.S.

How Enslaved Elizabeth Freeman, 'Mum Bett,' Sued for Her Freedom and Won

history.howstuffworks.com/historical-figures/mum-bett.htm

On Aug 22, 1781, the court ordered that Mum Bett, later known as Elizabeth Freeman, should be emancipated from slavery. She was the first enslaved black woman to sue for her freedom and win.

Cinnabar: Red, Beautiful — and Toxic

science.howstuffworks.com/environmental/earth/geology/cinnabar.htm

Cinnabar's bright-red pigment has been used in jewelry, pottery and makeup for millennia. But cinnabar is also the primary ore for mercury, making it a dangerous mineral if the particles are inhaled.

SCIFs Are Spy-proof Places for America's Top Secrets

science.howstuffworks.com/engineering/structural/scif.htm

SCIFs are spy-proof, highly secure facilities designed for viewing and working with sensitive national security secrets. We talk to a former general counsel for the NSA to find out how they work.

How the CPR Doll Developed From a Famous Parisian Death Mask

history.howstuffworks.com/european-history/cpr-doll-history.htm

CPR Annie has been called "the most-kissed face in the world." But the doll's look was improbably inspired by a famous Parisian death mask.

Moissanite vs. Diamond: Which Is the Best Engagement Ring?

science.howstuffworks.com/environmental/earth/geology/moissanite-vs-diamond.htm

What's the difference between moissanite and diamonds? And which of these brilliant stones wins out when it comes to the engagement ring competition?

How the Phonograph Revolutionized Sound Recording

science.howstuffworks.com/innovation/inventions/phonograph.htm

The phonograph transformed audio recording, leaving a lasting impact on how we capture and preserve sound. Learn about the invention's history and evolution.

Portland Cement: A Concrete History With Structural Integrity

science.howstuffworks.com/innovation/inventions/portland-cement.htm

Invented in 1824, Portland cement remains prominent in modern construction. Learn about the hydraulic binder's raw materials and applications.

Blue-ringed Octopus: Tiny, Deadly and Antisocial

animals.howstuffworks.com/marine-life/blue-ringed-octopus.htm

Looks can be deceiving. That's definitely true for the blue-ringed octopus. It's tiny, stunningly beautiful and looks harmless. Yet its venom could kill 26 men in minutes.

The Copperhead Snake Is Seldom Lethal But Always Venomous

animals.howstuffworks.com/snakes/copperhead-snakes.htm

Though a copperhead will bite if disturbed, and it is venomous, its bite is rarely fatal.

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