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When a baseball player hits a home run, how do they know how far the ball traveled?
entertainment.howstuffworks.com/question704.htm
When Mark McGwire hits a home run, the distance the ball traveled is always announced on the scoreboard and on television a few seconds later. How do they know how far the ball traveled?
How did they get a huge IMAX camera to the top of Mt. Everest?
entertainment.howstuffworks.com/question705.htm
I really enjoyed How IMAX Works. The article says the camera weighs over 200 pounds -- so how did they create the IMAX films in the space shuttle, or the one on Mt. Everest? There is no way people lugged a 200-pound camera to the top of Mt. Everest!
What is OxyContin?
health.howstuffworks.com/medicine/medication/question706.htm
I keep hearing about some drug called "OxyContin" in the news. What is it? Why all the fuss?
How much corn would I need to fuel a cross-country trip with ethanol?
auto.howstuffworks.com/fuel-efficiency/alternative-fuels/question707.htm
I've heard that it's possible to build a car engine to run off of ethanol, a byproduct of corn. How much corn would I need to grow in order to produce enough ethanol fuel to drive my car across the country?
If you have HIV, does it mean you have AIDS, too?
health.howstuffworks.com/diseases-conditions/infectious/question709.htm
A friend of mine told me that just because you have HIV doesn't mean you have AIDS. Is this true?
How does a master key work?
home.howstuffworks.com/home-improvement/household-safety/question710.htm
A master key can open many different types of locks. Find out how a master key works.
How did the game of paintball get started?
entertainment.howstuffworks.com/question715.htm
My friends and I really like to play paintball. How did it get started? Someone told me it was for military maneuvers -- is this true?
How do touch-screen monitors know where you're touching?
computer.howstuffworks.com/question716.htm
There are three basic systems that are used to recognize a person's touch. Learn how touch-screen monitors work.
How much does the average person eat in two years?
recipes.howstuffworks.com/question720.htm
How much does a person eat in two years? A trip to Mars is supposed to take six months to get there and six months to get back, and with perhaps a year spent on the planet, how much food would the ship have to carry for each person?
What is the difference between DVD-audio and CDs?
electronics.howstuffworks.com/question344.htm
What is the difference between DVD-audio and CDs? It all has to do with their sampling rate.