Uploaded March 2014 | Updated September 2026, 2 weeks ago

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Date- 12th Feb 14 Source- http://www.spitzer.caltech.edu/video-audio/1434-irastro027-Fusion-vs-Fission

'When a science-mad A.I. system (voiced by GLaDOS actress Ellen McLain) is installed at NASA, two hapless computer technicians learn the process behind nuclear fusion in the Sun, and how it differs from fission.'