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How Radio Works
electronics.howstuffworks.com/radio.htm
Radio waves are the backbone of nearly all modern media technology, from TV to smartphones to wireless internet. Yet, they're actually a simple technology.
How does a computer's parallel port work?
computer.howstuffworks.com/question11.htm
How does a computer's parallel port work? And how can you design things to attach to a parallel port ?
How does stealth technology work?
science.howstuffworks.com/question69.htm
When an airplane is described as a "stealth" aircraft, what does that mean? What is "stealth technology" and how does it work?
How are the Voyager spacecraft able to transmit radio messages so far?
science.howstuffworks.com/question431.htm
The Voyager spacecraft use 23-watt radios. This is higher than the 3 watts a typical cell phone uses, but in the grand scheme of things it is still a low-power transmitter. The key to receiving the signals is therefore not the power of the radio, but a combination of three other things.
How TV Phones Work
electronics.howstuffworks.com/tv-phone.htm
Widespread mobile TV is on its way, straight to your cell phone. Find out what's behind it.
No Wires Required
play.howstuffworks.com/quiz/wifi-quiz
Wireless networks are easy to set up and inexpensive. They're also unobtrusive -- unless you're on the lookout for a place to use your laptop, you may not even notice when you're in a hotspot. But as you'll find out in this quiz, there's a lot more to them than meets the eye.
How Wireless Speakers Work
electronics.howstuffworks.com/gadgets/audio-music/wireless-speakers.htm
Wireless speakers can eliminate some of those pesky audio cables. While they do have advantages, wireless speakers also come with some strings attached.
Why Syncing Traffic Lights May Not Reduce Congestion
Ever get red light after red light when you're driving? Often, it's because traffic lights aren't synced to each other. But would doing so really fix traffic problems?
How Rumble Robots Work
entertainment.howstuffworks.com/rumble-robot.htm
Rumble Robots are some of the most popular toys right now. Find out how these RC bots wage war and keep score!
How is GPS used in spaceflight?
science.howstuffworks.com/how-is-gps-used-in-spaceflight.htm
GPS is great, but it's kind of Earth-centric. If we have our hearts set on traveling to distant planets and faraway stars, then it's time to come up with a new navigation system. NASA, of course, has an idea.