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What is the four-stroke combustion cycle?
auto.howstuffworks.com/four-stroke-combustion-cycle.htm
The Otto cycle includes the intake, compression, combustion and exhaust strokes. Learn about the four-stroke combustion cycle from this article.
Want to Save Gas? Follow That Truck!
auto.howstuffworks.com/fuel-efficiency/fuel-economy/follow-that-truck.htm
What to save gas? Follow that truck! Learn in this article how you can save gas by following behind large trucks.
How Fire Works
science.howstuffworks.com/environmental/earth/geophysics/fire.htm
Few things have done as much harm to humanity as fire, and few things have done as much good. Find out where fire comes from and see why it behaves the way it does. The answers might surprise you!
What Is a Green Roof?
science.howstuffworks.com/environmental/green-science/green-rooftop.htm
A green roof is a roof that is covered in plants, which reduces stormwater run-off and lowers cooling costs. Find out how a green roof can help the environment.
How to Avoid Bubbles in Your Nail Polish Finish
A buried bubble trapped in your nail polish finish can really mess it up. So how can you fix it?
Bessie Coleman: America's First Black Female Aviatrix
science.howstuffworks.com/transport/flight/classic/bessie-coleman.htm
You've heard all about the exploits of Amelia Earhart, but do you know the story of Bessie Coleman, the first Black American woman to receive a pilot's license?
What Are the Cardinal Signs in Astrology?
entertainment.howstuffworks.com/horoscopes-astrology/cardinal-signs.htm
The cardinal signs are Aries, Cancer, Libra and Capricorn. What does it mean if you're a cardinal?
What is a keyhole satellite and what can it really spy on?
science.howstuffworks.com/question529.htm
On a television drama last week, the plot involved photos taken of a Russian missile silo, and the characters mentioned a "keyhole satellite." What is a keyhole satellite and what can it really spy on?
What are the twelve signs of the Zodiac?
entertainment.howstuffworks.com/horoscopes-astrology/question750.htm
What are the twelve signs of the Zodiac?
Do exhaust cutouts increase horsepower?
auto.howstuffworks.com/exhaust-cutouts-increase-horsepower.htm
Adding an exhaust cutout is a simple way to free-up some additional horsepower in your car or truck. Learn more at HowStuffWorks.