Many soldiers had come back from World War II missing limbs. Cable-powered arms were common for above-elbow amputees. That changed in the 1960s when, in a small laboratory at the Massachusetts Institute of Technology, a fifty-five year-old man was fitted with an experimental robotic arm
Most health agencies recommend that older adults take 1,000-1,200 milligrams of calcium per day to stave off bone loss, or “osteoporosis.” About 43 percent of U.S. adults follow that advice by taking supplements, but in some countries, including New Zealand, calcium-supplement use is falling
Newly Discovered ‘Stop Neurons’ Could Save Your Life
Neuroscientists have known since the 1960s what nerves tell a person’s legs to step off the curb to cross the street. But until now, they had no idea which hold the person back to avoid getting hit by a car. Margaux Phares reports in NOVA Next.