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The September 11 Attacks Quiz

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On Sept. 11, 2001, terrorist attacks on America altered the world's political and military landscape. How much do you really know about the history of these atrocities?

Is Technology Driving a New Era of Cults?

people.howstuffworks.com/is-technology-driving-new-era-cults.htm

Bentinho Massaro has more than 300,000 followers. Stuff They Don't Want You To Know looks at his teachings and if he's the first tech cult leader.

Historically, Houseplants Were For the Rich

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In Victorian times, only a few plants could stand up to the fumes from coal fires and gas lamps. Now, we have a wide variety of plants to choose from.

What Did Your Address Look Like 250 Million Years Ago?

science.howstuffworks.com/environmental/earth/geophysics/what-did-your-address-look-like-250-million-years-ago.htm

The Ancient Earth visualization map shows the movement of the planet's tectonic plates in a really cool way.

What's the Difference Between a Tortoise and a Turtle?

animals.howstuffworks.com/reptiles/tortoise-turtle-difference.htm

Tortoises and turtles both have prehistoric looking shells and look very much alike, but what's the difference?

The Hairy Frog Has Retractable Claws Made of Bone

animals.howstuffworks.com/amphibians/hairy-frog.htm

Most frogs hop away from danger. But the hairy frog? It brings its own weapons to the fight—literally. Known for its bizarre defense mechanism, this amphibian snaps its own bones to create claws that pierce through its skin. You read that right.

How Space Collisions Work

science.howstuffworks.com/dictionary/astronomy-terms/space-collision.htm

Space collisions happen when stars, asteroids and even galaxies smash into one another. Learn what space collisions look like and what the results are.

Why did cars become the dominant form of transportation in the United States?

auto.howstuffworks.com/cars-dominant-form-transportation.htm

Why did cars become the dominant form of transportation in the U.S.? In this article, find out why cars became the main form of transportation in the U.S.

Top 5 Home Repairs You Should Never Do Yourself

home.howstuffworks.com/home-improvement/household-safety/5-home-repairs-you-should-never-do-yourself.htm

There are some home repairs that really should be left to the professionals. Learn about 5 home repairs you should never do yourself.

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