"Cosmology is a very exciting and active subject. "Only those which grew to a certain size would be safe from re-collapse and would continue to expand at an ever increasing rate," Dr. The image which Hawking drew of the beginnings of the universe was that of bubbles appearing and bursting, corresponding to mini universes that expand and collapse. In his view, the beginning of the universe would be governed by the laws of science: the creation of the universe would be down to spontaneous quantum creation. "To ask what happened before the beginning of the universe would become a meaningless question because there is nothing south of the South Pole." "As one moves north, the circles of constant latitude, representing the size of the universe, would expand," he said. Looking for the beginning of the universe was like looking for any place south of the South Pole, he said. "One can get rid of the problem of time having a beginning in a similar way in which we got rid of the edge of the world," Dr. Roger Penrose developed in 1970 said that the General Theory of Relativity explained how the universe and time itself might begin in the big bang and that time would come to an end in black holes. He described how the General Theory of Relativity of Albert Einstein and the discovery of the expansion of the universe provoked conceptual changes, which meant that the idea of an ever-existing, ever-lasting universe was no longer tenable. "One would have to invoke an outside agency, which for convenience one can call God, to determine how the universe began." "Many scientists were still unhappy with the universe having a beginning because it seemed to imply that physics broke down," Hawking said. "Hubble's finding was one of the most important intellectual discoveries of the 20th century, or any century," Dr. Was the universe eternal? Or did it have a beginning? A key turning point came in the 1920s when American astronomer Edwin Hubble observed other galaxies and concluded that the universe was expanding. Hawking, in a stripped dark shirt, related his thoughts on the enigma of the origins of the universe. Seemingly snoozing in his black wheelchair, Dr.
Hawking speech synthesizer online full#
To change each section of his prepared text, he blinks an eye, slightly scrunching up his cheek in the process.Īccompanied by five nurses, Hawking was aided by a man who helped scroll through PowerPoint slides, which were detailed and full of cartoon pictures.
He controls his computerized voice system using a blink-activated infrared system embedded in his glasses. He lost function of his three last working fingers two years ago and can now only coomunicate by moving his eyelids. Hawking began his discourse with his standard question for such occasions, the metallic voice fed through an amplifier installed in his wheelchair.ĭiagnosed with amyotrophic lateral sclerosis (ALS) before getting his PhD in 1965, Hawking has been confined to a wheelchair since. The 64-year-old was invited by his longtime friend Shing-Tung Yau, a Harvard mathematician and Fields Medalist, to Beijing to speak at the International Conference on String Theory 2006. Rows of cameramen fired a volley of flashes at Hawking in a media frenzy usually reserved for major political figures or pop stars, although his hosts had warned earlier that bright lights could harm his sight. The British scientist wowed the audience when he delivered a lecture Monday in China's Great Hall of the People.
Wheelchair-bound theoretical physicist Stephen Hawking, who speaks through an electronic speech synthesizer, has acquired a cult status among Chinese youngsters much like that of Tom Cruise.
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