what was the writer's first view of Stephen Hawking
how did the Stephen Hawking communicate
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With this new system, Hawking was able to communicate at a rate of 15 words per minute. ... His graduate assistant at the time then devised a switching device called the "cheek switch." Attached to his glasses, it could detect, via a low infrared beam, when Hawking tensed his cheek muscle.
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Hawking previously used his figure to control a computer and voice synthesizer. But once he lost use of his hands, he started depending on twitching a check muscle to communicate.
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