presidents are now headed to searveg to pay their dches south africa to pay their respects. a massive celebration is expected in johannesburg. >> hello and welcome i'm phil torres here to talk about invocations that can change lives. the intersection of hardware and humanity and we're doing it in a unique way. marita davidson is a biologist specializing inning innings innd evolution. kosta grammatis is an engineer who designed a buy ontic eye. >>> i'm phil torres, i'm an entomologist. with

dches south africa to pay their respects. a massive celebration is expected in johannesburg. >> hello and welcome i'm phil torres here to talk about invocations that can change lives. the intersection of hardware and humanity and we're doing it in a unique way. marita davidson is a biologist specializing inning innings innd evolution. kosta grammatis is an engineer who designed a buy ontic eye. >>> i'm phil torres, i'm an entomologist. wittÑ well battery pack and then there's that whole walking thing. >> it takes over the function of the muscles in your legs. it can do that either completely, for a person who's completely paralyzed, or partially for someone who is rethroarng walk, like someone who -- credit relearning to walk, like someone who has just had a stroke. >> i put the device in walk-mode and take the first right step and as i move my body the exo will move with me. if i don't move to the any next position the exo stops. >> test pilots like amanda boxtel and jason geezer, how have they helped you advance this techno