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LCD vs. LED: What's the Difference Between the Displays?
electronics.howstuffworks.com/difference-between-lcd-and-led.htm
Flat screen TVs come in different flavors. Learn about the difference between LCD and LED in this article.
How Light Sticks Work
science.howstuffworks.com/innovation/everyday-innovations/light-stick.htm
Light sticks produce a mesmerizing neon glow before slowly extinguishing. Learn about light sticks, chemical light sticks and how they work.
How Plasma Cutters Work
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The metal used to construct buildings resists all sorts of damage, making it a very reliable material -- and very difficult to manipulate into the appropriate form. Enter the plasma cutter. Learn all about the amazing device that cuts through metal like a knife through warm butter.
How Light Emitting Diodes (LEDs) Work
electronics.howstuffworks.com/led.htm
Light emitting diodes form numbers on digital clocks, send data from remote controls and illuminate watches - the simple genius of the design makes it infinitely applicable. And now, LEDs are affordable.
How Three-Way Switches Work
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You probably have at least one light that is controlled by two separate switches -- either switch can turn it on or off. Find out how the light knows what to do with two sources of input.
How LED Light Bulbs Work
science.howstuffworks.com/environmental/green-tech/sustainable/led-light-bulb.htm
LED light bulbs have taken over the market. But what are their pros and cons?
Ultimate Guide to Green Building
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Green building is the practice of creating more resource-efficient methods of construction and renovation. Learn more about green building methods.
How X-rays Work
science.howstuffworks.com/x-ray.htm
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 Bug Zappers Work
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Bug zappers can help keep your backyard free of pesky insects. Find out how bug zappers kill insects and take a look at the inside of a bug zapper.
How Dimmer Switches Work
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A regular light switch takes care of off and on. A dimmer switch handles off, on and everything in between. Find out what this clever switch does with electrical current.