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Can You Get More Than 11 Right on This Air Force Quiz?
play.howstuffworks.com/quiz/can-you-get-more-than-11-right-on-this-air-force-quiz
The Air Force has been defending the nation since 1947 and in that time has operated thousands of aircraft and conducted thousands of missions. Think you can ace this Air Force quiz? Strap in and let's find out!
What Is Delta Force, the Super Secret Military Group?
science.howstuffworks.com/delta-force.htm
Delta Force is the United States' most elite tactical combat group. Learn about Delta Force and the secrecy surrounding the Delta Force team
The British Armed Forces Quiz
play.howstuffworks.com/quiz/british-armed-forces-quiz
Test your (knowledge of) British military might by taking our British Armed Forces Quiz. Learn how the armed forces work in Merry Old England. Or, you know, Regular Modern Great Britain.
How Air Curtains Work
home.howstuffworks.com/home-improvement/construction/green/air-curtains.htm
Is it possible for a stream of air to behave like a door? Surprisingly, yes. This door may not block out burglars, but it can certainly fight against cold winds, flying insects and pollutants.
How Air Tubs Work
home.howstuffworks.com/air-tub.htm
Lots of people like the relaxing massage they get from the water jets in a hot tub. But some people prefer a gentler touch. How are air tubs different from whirlpools?
How Air Brakes Work
auto.howstuffworks.com/auto-parts/brakes/brake-types/air-brake.htm
Air brakes aim to stop trucks, trains and buses from crashing. Learn why air brakes, not hydraulic brakes, slow these modes of transportation down.
How Air Purifiers Work
home.howstuffworks.com/air-purifier.htm
Americans spend an estimated $250 million annually on air purifiers for their homes. Learn why people buy air purifiers and how they work.
How Air Taxis Will Work
science.howstuffworks.com/transport/flight/modern/air-taxi.htm
Air taxis could make a trip to the beach or a visit with friends and relatives go from taking six hours on the highway to a quick, no-hassles plane ride. Find out how the air-taxi system will operate.
How Hot Air Balloons Work
science.howstuffworks.com/transport/flight/modern/hot-air-balloon.htm
Hot air balloons are about as simple as flying can get — no engine, no moving parts really, and very little the pilot can do to control the vehicle. Find out what it's like to fly a hot air balloon!
How an Air-cooled Engine Works
auto.howstuffworks.com/air-cooled-engine.htm
Most modern cars use a water-cooled engine with a radiator, hoses and a water pump. Is an air-cooled engine a better idea?