Bill takes apart an incandescent light bulb to how how the filament is made. He shows extreme close-ups of the filament, and he discusses the materials processing need to make the ductile tungsten

Light Bulb Filament

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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Light Bulb Filament

Light Bulb Filament