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Your search for "millennium" returned 226 results
Why do civilizations collapse?
science.howstuffworks.com/environmental/green-science/civilizations-collapse.htm
The mighty Romans certainly never thought it would happen to them, but the sun eventually sets on even the most powerful empires. Is there more to the story than war?
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.
Distance Formula: Finding the Distance Between Two Points
science.howstuffworks.com/math-concepts/distance-formula.htm
You can find the distance between two points by using the distance formula. It's an application of the Pythagorean theorem. Remember that from high school algebra?
If I Have a Gas Leak in My Home, Will I Die?
home.howstuffworks.com/home-improvement/household-safety/gas-leak-home.htm
A gas leak is not a good thing. There's a reason it has that awful odor -- to warn you of danger. Learn more about the dangers of a gas leak.
Can I recycle my carpet?
home.howstuffworks.com/home-improvement/home-diy/flooring/recycle-carpet.htm
Around 5 billion pounds of carpet goes to landfills every year. Learn how to recycle carpet to slow this wasteful trend.
How does public transportation help the environment?
science.howstuffworks.com/transport/engines-equipment/public-transportation-help-environment.htm
In January 2004, the citizens of Milan, Italy, were preparing for a strike that would shut down all public transportation. Since an estimated 28 percent of greater Milan's 3 million populace relied heavily on public transit, the strike meant gridlock for most of the city.
So That's Where Baby Veggies Come From!
recipes.howstuffworks.com/where-do-baby-veggies-come-from.htm
Are baby veggies actually baby vegetables? HowStuffWorks checks out the truth behind little vegetables.
Call It Arroba, Kukac or Strudel: The History of the @ Sign
people.howstuffworks.com/arroba.htm
The @ sign is so much a part of the internet that it may surprise you to know it's been around for at least 1,500 years.
Cheerios: 8 Fun Facts About Making Oats Into O's
recipes.howstuffworks.com/cheerios.htm
This iconic cereal has a long and fun history. For instance, its original name wasn't even Cheerios.
How Much Do You Know About Texas History?
play.howstuffworks.com/quiz/how-much-do-you-know-texas-history
From the arrival of the Spanish to statehood, Texas has a rich history. Take this quiz to test your knowledge and find out just how well you know Texas.