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Caves
Bill Stone Explores the World's Deepest Caves
Bill Stone
Bill Stone talks about space exploration using cave exploration machines and ingenious methods for fuel and propulsion.
1 people like this
Bill Stone: Bill Stone Explores the World's Deepest Caves
March 1, 2007 (over 16 years ago)Bill Stone talks about space exploration using cave exploration machines and ingenious methods for fuel and propulsion.
1 people like this
Source: TED
(1 results)