Stephen Hawking's ability to communicate was slowing down due to his disease, and a speaking aid was developed to help him talk. Master of the Universe: Stephen Hawking Speaking Aid More Videos Online

Master of the Universe: Stephen Hawking Speaking Aid

Stephen Hawking's ability to communicate was slowing down due to his disease, and a speaking aid was developed to help him talk.

Added: Feb 10, 2009
Views: 16051 Views
Runtime: 02:50

 
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