Quote of the day
The theoretical understanding of the world, which is the aim of philosophy, is not a matter of great practical importance to animals, or to savages, or even to most civilized men.
Kenneth S. Deffeyes

Born: 1931
Died: November 29, 2017 (aged 86)
Bio: Kenneth S. Deffeyes was a geologist who worked with M. King Hubbert, the creator of the Hubbert peak theory, at the Shell Oil Company research laboratory in Houston, Texas.
Known for:
- Beyond Oil (2005)
- Hubbert's Peak (2001)
- When Oil Peaked (2010)
- Nanoscale: Visualizing an Invisible World (2009)