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How Air Traffic Control Works
science.howstuffworks.com/transport/flight/modern/air-traffic-control.htm
There are about 5,000 planes in U.S. airspace every hour. How do these aircraft keep from colliding with each other? Learn about the intricate system that guides a plane from takeoff to landing.
How Roundabouts Work
science.howstuffworks.com/engineering/civil/roundabouts.htm
Roundabouts aren't all that complicated, but they're still relatively rare in the U.S., especially when compared with France.
How Dopamine Works
science.howstuffworks.com/life/inside-the-mind/human-brain/dopamine.htm
You could call dopamine the most misunderstood neurochemical in the brain. It's allegedly the cause of people getting addicted to drugs, chocolate or video games. But what does really dopamine do?
Railroads of the 1920s
history.howstuffworks.com/american-history/railroads-of-the-1920s.htm
Railroads of the 1920s reflected a time of uncertainty in the industry at the time. Learn more about the railroads of the 1920s.
10 Mysterious Pains You Shouldn't Ignore
health.howstuffworks.com/wellness/preventive-care/10-mysterious-pains.htm
Some pains should never be ignored because they could put your health - or worse - your life at risk. But how do you know which is just a little discomfort and which is a sign of more?
How Olympic Timing Works
entertainment.howstuffworks.com/olympic-timing.htm
In timed Olympic events, the difference between gold and silver can come down to a fraction of a second. You won't find that kind of accuracy in your typical wristwatch. Find out about the systems (and backup systems) that keep Olympic timing honest.
How the Digestive System Works
health.howstuffworks.com/human-body/systems/digestive/digestive-system.htm
The digestive system absorbs and transports all the nutrients your body needs. Learn more about the digestive system.
How do motion sensing lights and burglar alarms work?
home.howstuffworks.com/home-improvement/household-safety/question238.htm
How can motion-sensing lights detect your presence, and what prevents them from seeing you when you're standing still? It all comes down to the movement of light.
What is a foul-tip?
entertainment.howstuffworks.com/foul-tip.htm
What is a foul-tip? Learn about foul-tips in baseball in this article from HowStuffWorks.
Can Different Bird Species 'Talk' with Each Other?
animals.howstuffworks.com/birds/can-bird-species-talk-with-each-other.htm
Does your parakeet understand the cardinal chirping outside its window? Can a pigeon's noises mean anything to a crow? Yes, it can.