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How Horsepower Works
auto.howstuffworks.com/horsepower.htm
Horsepower rates the engine performance of cars and even lawn mowers. Learn what horsepower means, how it is measured and how it works in high-performance cars.
How do plants compare to solar cells when it comes to collecting solar energy?
science.howstuffworks.com/environmental/green-science/question638.htm
How do plants compare to solar cells when it comes to collecting solar energy? Would you get more power from an acre of ground by putting solar cells on it or by raising plants?
Keeping Cool: Air Conditioner Quiz
play.howstuffworks.com/quiz/air-conditioner-quiz
Are you all steamed up because your air conditioner is on the fritz? Knowing some basics about how your air conditioner works will help you keep your cool. Test yourself to see how much you know about the indispensable air conditioner.
Are pellet fireplaces the most efficient fireplaces?
Are pellet fireplaces the most efficient fireplaces? Find out if pellet fireplaces are the most efficient in this article from HowStuffWorks.
Biofuels vs. Fossil Fuels
auto.howstuffworks.com/fuel-efficiency/biofuels/biofuel-fossil-fuel.htm
What's the difference between biofuels and fossil fuels? Keep reading to see how biofuels compare to fossil fuels.
How Much Do You Really Know About HVAC?
play.howstuffworks.com/quiz/how-much-do-you-know-hvac
HVAC professionals help us stay warm or cold on the days we need it most. Think you can keep your cool on this quiz? Take it to find out!
How Force, Power, Torque and Energy Work
auto.howstuffworks.com/auto-parts/towing/towing-capacity/information/fpte.htm
You find references to force, power, torque and energy all over the HowStuffWorks site. Learn what these terms really mean and how they relate to one another.
Does hybrid car production waste offset hybrid benefits?
Does hybrid car production waste offset hybrid benefits? Find out if hybrid car production waste offsets hybrid benefits in this article.
Do You Know More About Home Improvement Than Bob Vila?
play.howstuffworks.com/quiz/do-you-know-more-about-home-improvement-than-bob-vila
Quick, name the best-known home improvement guru on TV! If you said Bob Vila, you're in good company, but do you have what it takes to go toe-to-toe with this master Mr. Fix It? Find out with this quiz!
What If Cows Didn't Exist?
science.howstuffworks.com/science-vs-myth/what-if/what-if-cows-didnt-exist.htm
A world without cows would be a world without burgers, right? Yes, and to beef eaters that's bad news, but it would also be a world with less methane. So would losing all cows be worth it?