With his hammer Bill cracks up a cell phone to expose how our electronic gadgets rely on the mineral tantalum - mined as Coltan.

Tantalum: Nutmeg of the west

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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Tantalum: Nutmeg of the west

Tantalum: Nutmeg of the west