Man claims to have made robotic arm from junk
Wayan Sumardana, a 31-year-old welder from Bali, Indonesia, has claimed to have made a bionic arm from scrap metals. "I send a signal from my brain... that message is captured by the machine and it makes my arm move", Sumardana, who lost sensation in his left arm six months ago, said. Experts, however, have expressed doubts on the machine's functioning. 