Stephen Hawking's wheelchair, thesis sell for over $1 million
A motorised wheelchair used by late British physicist Stephen Hawking was auctioned for over $390,000 while his PhD thesis raised nearly twice the amount for charity. About 22 personal belongings of Hawking were put on sale including a thumbprint-signed copy of his book 'A Brief History of Time' and a script from 'The Simpsons' episode where Hawking lent his voice.