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Why Are Some Comets Green?
science.howstuffworks.com/green-comet.htm
News headlines talk about a rare green comet appearing in the sky. The comet itself is rare, but green comets, not so much. What makes some comets appear green?
How Wildfires Work
science.howstuffworks.com/nature/natural-disasters/wildfire.htm
Wildfires burn about five million acres in the U.S. every year. Learn about the causes of wildfires, how wildfires behave and how firefighters fight them.
How the Terracotta Army Works
science.howstuffworks.com/environmental/earth/archaeology/terracotta-army.htm
The Terracotta Army was commissioned under Emperor Qin as protection for the afterlife. Learn why the Terracotta Army isn't as unique as it is massive.
How Motes Work
computer.howstuffworks.com/mote.htm
Smart dust sounds like something out of a Disney movie, but it's not. Also called a mote or a wireless sensing network, this new technology is intriguing everyone from military personnel to vineyard owners. Find out what the big deal is and explore the many possible applications of this tiny device.
Do wind turbines kill birds?
science.howstuffworks.com/environmental/green-science/wind-turbine-kill-birds.htm
While some wind turbines kill birds, newer models are being built to reduce bird mortality. Learn why some wind turbines kill birds.
10 Places to Look for Classic Car Parts
Need ideas for where to find classic car parts? Check out 10 places to look for parts for your classic car at HowStuffWorks Auto.
Could You Pass This Canadian Geography Quiz?
play.howstuffworks.com/quiz/could-you-pass-this-canadian-geography-quiz
If you've traveled around the country, or just know your stuff about Canada, you've found the right quiz. You live here, but how well do you really know the geography of your country? Find out by taking a trip from BC to Newfoundland on this quiz!
Test Your Automotive Knowledge With a Car Quiz!
play.howstuffworks.com/quiz/test-your-automotive-knowledge-with-a-car-quiz
Most of us drive cars to get to work, go shopping and visit friends. But how much do you actually know about the vehicle you drive each and every day? Start your engine, hit the gas and get ready to take our challenging car quiz to find out.
What is soft-story seismic retrofitting?
science.howstuffworks.com/engineering/structural/soft-story-seismic-retrofitting.htm
A soft-story building has a first floor that's more flexible than the ones above -- think apartments over a department store that's mostly open space. How does soft-story retrofitting keep such buildings from collapsing in a quake?
Japanese Kamikazes: Heroic or Horrifying?
history.howstuffworks.com/world-war-ii/japanese-kamikazes.htm
Toward the end of World War II, the Japanese were desperate and turned to the ultimate death squad, suicide bombers. Were these men heroes or horrible war criminals?