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How Lasers Work
science.howstuffworks.com/laser.htm
Lasers are used in dental drills, eye surgery, tattoo removal, and (of course) laser pointers. Learn how different lasers generate such concentrated light.
How Plasma Displays Work
electronics.howstuffworks.com/plasma-display.htm
Flat-panel plasma displays are quickly surpassing bulky CRTs in terms of sales. Learn about plasma technology.
How Television Works
electronics.howstuffworks.com/tv.htm
Ever wonder how television works? The technology has been around long enough to seem ordinary, but the box that brings TV shows into your home is an amazing device. How is the picture formed? Where does the color come from? Let's find out!
What causes the faint horizontal lines on my monitor?
computer.howstuffworks.com/question406.htm
What causes the faint horizontal lines I can see on my monitor?
How Laser Analysis Works
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Laser analysis is advancing everything from forensics and archaeology to health care and art history. Learn how laser analysis technology works.
How X-rays Work
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X-ray machines seem to do the impossible: They see straight through clothing, flesh and even metal, thanks to some very cool scientific principles at work. Find out how X-ray machines see straight to your bones.
How Computer Monitors Work
computer.howstuffworks.com/monitor.htm
Chances are you're reading this on a computer monitor. Do you know what's going on behind the scenes? Find out all about it, including dot pitch, refresh rates and the signals flowing along the graphics cable.
How Olympic Timing Works
entertainment.howstuffworks.com/olympic-timing.htm
In timed Olympic events, the difference between the gold and the 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 Laser Levels Work
home.howstuffworks.com/laser-level.htm
Laser levels will help you to hang your pictures all in a line. Learn how laser levels work and how to use a laser level to hang pictures.
How Night Vision Works
electronics.howstuffworks.com/gadgets/high-tech-gadgets/nightvision.htm
Most of us instinctively think of darkness as a way to hide. Night vision has changed all that. So, how can you see someone standing over 200 yards away on a pitch-black night? Find out.