>> The PhD thesis of one of the world's great scientists completes with a signature by 24-year-old Stephen Hawking himself. Just one of the physicist's personal items now being put up for online auction. Renowned for his research into the origins of the universe, Hawking was instantly recognizable. Using a wheelchair and electronic voice synthesizer due to the effects of motor neuron disease.
He died in March at the age of 76.>> Define the ultimate theory of everything.>> One of his wheelchairs from the late 1980s is also on sale at the Christie's auction in London, with an estimate of 10,000 to 15,000 pounds.>> You've got one of the five copies of his doctorate thesis.
You've got some of the papers that he published that give us the most important ideas introduced on black holes in particular, and the geometry of space-time. And then you've got some of the fun items associated with his presence, his personality as a scientific communicator. So one of the things I really love is the poster that invites time travelers to attend a party that had already happened several years before.
>> Another item up for grabs is the original script for his final appearance on The Simpsons. Hawking was popular across the world, often appearing on TV and at events. His book, A Brief History of Time, was a bestseller. Auction prices range from just a few hundred pounds to almost astronomical prices.
Anyone hoping to own a copy of his thesis is likely to pay well over 100,000 pounds.