One guy's massive MRI goof is a window into curiosity and science. This video, shared by ericmartinmoney, is truly enlightening. It answers an age-old question, which surely terrifies all of us when we go in to get an MRI. The technician will ask if you're wearing anything metal, because the MRI is literally a giant magnet . You then take off your earrings or belt, and take a peaceful rest inside the machine as it makes noises at concert volume. But you never actually get to find out how powerf…