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How much can you save by turning off the A/C?
money.howstuffworks.com/personal-finance/budgeting/how-much-save-turning-off-ac.htm
Turning off your A/C can save you money, but do you know how much? Learn how much can you save by turning off the A/C at HowStuffWorks.com.
Can Your Ceiling Fan Direction Impact Energy Costs?
home.howstuffworks.com/ceiling-fan-direction.htm
You probably don't need to change your ceiling fan direction if you only use it to cool the room, but you can switch the direction for a wintertime hack.
Match the Fighter Jet to Its Nickname!
play.howstuffworks.com/quiz/match-the-fighter-jet-its-nickname
Do you know your Tomcats from your Typhoons? Your Flagons from your Fencers? Or your Fulcrums from your Foxbats? Then this jet fighter nickname quiz is just for you!
How Mirages Work
science.howstuffworks.com/mirage.htm
You're driving down the road on a sunny day, and you see a puddle of water coming up. You look again and it's gone! What happened? You'll be able to answer that question if you read our miraculous mirage article.
Can You Pass a Scuba Diving Certification Quiz?
play.howstuffworks.com/quiz/can-you-pass-a-scuba-diving-certification-quiz
Scuba diving: It's the passport to a gorgeous underwater world ... but it's not very forgiving of the careless or the reckless! Think you could pass a diver certification quiz? Find out now with our quiz!
How the Grail Engine Works
auto.howstuffworks.com/grail-engine.htm
What is the Grail Engine? Read about the Grail Engine and how it could change how we drive in the future.
Why are drone pilots leaving the military?
science.howstuffworks.com/why-are-drone-pilots-leaving-military.htm
Why the skies aren't exactly so friendly for drone pilots.
What Are Dual Overhead Cams?
auto.howstuffworks.com/question562.htm
What does it mean when a car has dual overhead cams? Does it matter? Is a car with dual overhead cams better than one with single overhead cams?
How Your Lungs Work
health.howstuffworks.com/human-body/systems/respiratory/lung.htm
You couldn't breathe without your lungs and you do it without even thinking about it. So, how do your lungs manage this amazing feat?
UFOs and the Government
science.howstuffworks.com/space/aliens-ufos/ufo-government.htm
Project Sign was the first major government UFO investigation project. Read how Project Sign began and the history of UFOs and the U.S. government.