electric waves

Radio waves aren't just for listening to your favorite radio station. They are used to make GPS receivers and wireless internet work, plus scientists use radio telescopes to help them study space. Readers learn about radio waves and how we use them every day.

Even though computer wireless networks havent been around for very long, the basic technology used to create them is more than 100 years old. WiFi uses radio waves to send and receive data and connect smartphones, tablets, and computers to the Internet. Today, almost everywhere you go has WiFi, including schools, coffee shops, and the library. The inner workings of this ubiquitous technology will fascinate readers, who probably use it every day. Accompanied by full-color photos, the main content will introduce innovators like Nikola Tesla and other electronics history, as well as the future possibilities of wireless connection..

Explains radio waves and radio signaling and discusses how energy carries information, how messages are imprinted on energy, how signals move across space, how signals are detected, and other related topics.