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Acting Filmography
Title | Character | Year |
---|
How the Earth Was Made | Self - Geophysicist | 2009 |
Naked Science | Self - Scientist Emeritus, U.S. Geological Survey | 2004 |
Horizon | Self - US Geological Survey | 1964 |
Acting Filmography
Title | Character | Year |
---|
How the Earth Was Made | Self - Geophysicist | 2009 |
Naked Science | Self - Scientist Emeritus, U.S. Geological Survey | 2004 |
Horizon | Self - US Geological Survey | 1964 |