How Radio Signals Work: All the Basics Plus Where to Find Out More by Jim Sinclair, ISBN 0070580588
Understand Today's Communications- No Technical Background Required.Radio waves poer not only radios, but TVs. They make our cell phoneswork. They enable the airplane we ride and the ships we sail to navigate in unfamiliar locales. Radio waves are even at the heart of our most powerful telescopes, permitting scientists their clearest look into deep space. Most of us use radio waves every single day -and most of us have very little idea of how they work. In a reader-friendly style requiring no technical or mathematical background, this concise and clearly-written book explains the basics of radio signaling. You'll learn how: Energy carries information.Messages are imprinted on energy.Signals move across space.Signals are detected and amplified.Electrons, watts, amps, volts, and other "mysterious beasties" owrk.If you're curious about the phenomena that make modern communications work...if you want a fascinating, across-the-board tour of the entire field of radio communications, including career posibilities... or if you want to buttress a radio license application, you've found the right book. How Radio Signals Work is the most pleasant path to enlightenment in the Age of Communications.
Momentum: Igniting Social Change in the Connected Age
A new and empowering way of looking at and organizing social change! How can we move from serving soup until our elbows ache to solving chronic social ills like hunger or homelessness? How can we break the disastrous cycle of low expectations that leads to chronic social failures?
The answers to these questions lie within "Momentum," a fresh, zestful way of thinking about and organizing social change work. Today's digital tools— including but not limited to e-mail, the Web, cell phones, personal digital assistants (PDAs), even iPods— promote interactivity and connectedness. But as "Momentum" shows, these new social media tools are important not for their wizardry but because they connect us to one another in "inexpensive," "accessible," and "massively scalable" ways.
Momentum: Igniting Social Change in the Connected Age
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Tom Clancy's Splinter Cell: Double Agent
Tom Clancy's Splinter Cell: Double Agent
Motorolla cell phones > Tom Clancy's Splinter Cell: Double Agent