That was in 1994, when Friedland was best known by critics as "Toxic Bob, " after another of his ventures, Galactic Resources, tried to develop a gold mine near Summitville, Colorado using heap leaching, an extraction process that dips ore in cyanide to extract gold.

FORBES: Magazine Article

That was in 1994, when Friedland was best known by critics as "Toxic Bob, " after another of his ventures, Galactic Resources, tried to develop a gold mine near Summitville, Colo. using heap leaching, an extraction process that dips ore in cyanide to extract gold.

FORBES: The Promoter

In an interview with Heap, Melissa Block asks what it's like to have that direct connection throughout the process.

NPR: Imogen Heap: Even The Kitchen Sink