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⏲ Duration: 27 min 76 sec ✓ Published: 28-Jul-2011
Description: Bill Stone has organized the exploration of some of our planet’s deepest underwater caves. During the past 35 years, Dr. Stone has led 51 caving expeditions, spent more than seven years in the field, and logged 403 days below ground. In his spare time, Dr. Stone pioneered the development of computer-controlled diving apparatus, diver propulsion vehicles, 3D underwater and dry cave mapping equipment, spacecraft reaction control systems, next-generation laser radar systems for unmanned ground ve
Play Video: (Note: The default playback of the video is HD VERSION. If your browser is buffering the video slowly, please play the REGULAR MP4 VERSION or Open The Video below for better experience. Thank you!)