wireless communication systems

Traces the history and development of wireless communication from Marconi's invention of the telegraph in 1895 to the arrival of satellite radio in cars in 2001.

Explains what wireless technology is and how it works, discusses the effects of Wi-Fi on computers, cell phones, personal digital assistants, or PDAs, satellite communications, and other devices, and considers the future of the technology.

Traces the history of cell phones, explaining how they work from a scientific perspective, and examining the electrical components, technologies, and other related concepts, with information on transmission, plastics, software, and semiconductor chips.

Profiles the lives of Brittany and Robbie Bergquist, siblings who started Cell Phones for Soldiers, discussing their childhoods, inspiration for starting the organization, hard work, awards, and benefits of their efforts.

Text and photographs help readers explore the science concepts behind communication.

Presents resources for better understanding the complex, broad, and evolving legal issues about electronic devices that is facing American teens.

Fourteen essays present opposing arguments on wireless technology, covering such topics as classroom use, business productivity, security, wireless implants, and the urban poor.

Social networking sites are an essential part of everyday life. But whether they are good for relationships and society as a whole is debatable. Through objective discussion, numerous direct quotes, and full-color illustrations this title examines the issue.

Provides information on the possible effects of electromagnetic radiation called radiofrequency (RF) energy, which may increase the risk of brain cell damage leading to tumors.