L. John Fry: Methane Digester and Methane Fuel Innovator

An extended interview with L. John Fry, who as a pig farmer in South Africa in the late 1950s/early 1960s developed his own anaerobic methane digester technology to generate methane fuel from organic waste.

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Fry preparing a digester made from a truck inner tube he developed for people who live in countries with limited access to sophisticated materials.
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