Cell Phone Science: What Happens When You Call and Why

ISBN-13: 9780826349682 / Angielski / Twarda / 2011 / 182 str.

Michele Sequeira; Michael Westphal

Opis

How exactly do cell phones work? The cell or mobile phone is common place, but the technological importance is not understood. This lively history of phones and their innovations will help teenagers understand how the gadget that connects them to their friends really works.