Bill uses power tools to take apart a photocopier. He shows how it works, and shares the story of its invention by Chester Carlson.

A playful look at how the photocopier works

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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A playful look at how the photocopier works

A playful look at how the photocopier works