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What is the difference between analog and digital cell phones?

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There are two main digital systems in the U.S. One is generically known as "digital service," and the other is clearly branded as "PCS."

How is my radio able to display the stations call letters?

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If you have a car radio that shows FM station call signs on the display panel, then you have the Radio Data System feature. Find out how they 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 do you connect a subwoofer to an amplifier?

electronics.howstuffworks.com/connect-subwoofer-to-amplifier.htm

How do you connect a subwoofer to an amplifier? Visit HowStuffWOrks.com to learn how to connect a subwoofer to an amplifier.

How TV Phones Work

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Widespread mobile TV is on its way, straight to your cell phone. Find out what's behind it.

Can you watch TV with an antenna?

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Can you watch TV with an antenna? Visit HowStuffWorks.com to learn more about watching TV with an antenna.

How to Start a Radio Station

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Do you know how to start a radio station? Find out how to start a radio station in this article from HowStuffWorks.

Evolution by Natural Selection: Examples and Effects of Adaptation

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Natural selection is the idea that organisms that are best suited to survive pass their traits down. Is it true that only the strong survive?

How Grid Energy Storage Works

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Grid energy storage is discussed in this article from HowStuffWorks. Learn about grid energy storage.

What are the bumps at the end of computer cables?

computer.howstuffworks.com/question352.htm

The strange bumps, called ferrite beads, on your computer cables actually serve a very important purpose. Read about ferrite beads and what they do.

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