Bill uses a pile of cell phones to illustrate the seven design criteria that shape a mobile device. He outlines the seven basic constrain

Cell phone design

Bill Hammack's audio and video work emphasizes the creative role of engineers in designing and creating our world. He's a regular commentator on radio - based at Illinois Public Radio in Urbana he's appeared on public radio's premier business program Marketplace, and on Radio National Australia's Science Show. Many engineering, science, and journalistic groups have recognized his work.

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Cell phone design

Cell phone design