London: Tim Hawking, the son of Stephen Hawking has admitted programming swear words in his father’s speech machine, he made the confession in an upcoming BBC documentary.
He also admitted that it was only after his father got his synthesized voice that they were able to communicate properly. Tim, who works for toy company Lego, said that he had never known his father as a healthy man.
The 73-year-old physicist was diagnosed with motor neurone disease in 1963. Since 1985, Hawking has used a computer speech system to speak in a distinctive electronic voice.
Tim admitted that as a child he used his father’s wheelchair as a go-kart and programmed swear words into his famous voice machine. “My dad was able to speak with his own, natural voice for those first years, but it was incredibly difficult to understand what he was saying – particularly for me at such a young age.
Tim is the third of Hawking’s children with his first wife, Jane Wilde. Their romance forms the basis of the book and film ‘The Theory of Everything’.