Stephen Hawking was a English theoretical physicist and cosmologist. He died recently.
He was quite famous I believe, do you know what disease he was afflicted by?
He was born in 1942 and held academic positions at Cambridge. He suffered from motor neuron disease.
Oh interesting, do you know if his motor neuron disease had a more formal name? I swear I've heard it referred to by something else.
yet known, supportive care is available to individuals affected by the disease.
Symptoms.
Symptoms of MMND begin appearing when people are young, often before the age of 15. An affected individual is generally thin with weak arms and legs. They may lose control of the muscles that control their face, mouth, nose, and throat. This in turn, will cause difficulties speaking and swallowing. Further complications from the loss of facial motor control include drooling, as well facial droop. People with MMND may also suffer
his boards capable of 100 distinct variations altogether. 
Besides circular chess, Bhati has developed a ramp system enabling easy access to vehicles for the disabled. In 2014 he was presented a Dr. Batra's Positive Health Award by Mahendra Singh Dhoni.
Bhati suffers from Duchenne muscular dystrophy and uses a wheelchair. He credits his passion for invention to his admiration of British physicist Stephen Hawking: "I want to be like Hawking who became a famous scientist despite suffering from motor neuron disease."
Six-player circular chess.