Renowned theoretical physicist Stephen Hawking, who authored the best-selling book „A Brief History of Time“, soon will experience a brief history with weightlessness. Hawking, who uses a wheelchair and is almost completely paralyzed by amyotrophic lateral sclerosis, plans to go on a weightless flight on April 26, 2007, officials at the Zero Gravity Corporation at Fort Lauderdale, Florida, said Thursday. Hawking will be flying aboard a specially configured Boeing 727 aircraft that travels a curving parabolic path.
http://news.bbc.co.uk/2/hi/americas/6409597.stm