RADIO

These days, many people think of "radio" as that thing attached to their clock or what they listen to in their cars. But radio transmission is a science. Learn more about this technology, from Ham Radio to Sirius and XM.
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Could a wireless radio network save a miner's life?

A good communication network could help mine workers notify one another of unsafe conditions, but radio waves don't like to travel through rock. So what do you do?

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