greatest contribution and best example..of rehabilitation medicine&tech..is pro. stephen hawking obviously..he is the greatest theorytical physist af. einstein, who is tryin 4 a unfied theory to explain the ultimate question what is universe..

wonder is that in his body only movable parts r some fingers and head.he is an mnd patient.but with his fingers and eye brows he work up and communicates.a modified computer& software and out puts like speech synthesiser,he doin scientific lectures...and travell around world ..thank god..4 retaining that great brain for human race..