AMAZON $AMZN JUST BUILT A ROBOT THAT CAN FEELIt's called Vulcan, and it's the first robot in Amazon's history with a sense of touch.Here's why that matters:Most industrial robots are, in Amazon's own words, "numb and dumb." When they hit something unexpected, they either emergency stop or smash through it. They don't know contact happened.Vulcan knows. It uses force feedback sensors to measure exactly how hard it's pushing, how firmly it's gripping, and stops before doing damage.The practical re