My grandfather was an EE involved in early radar/microwave comm research and repeatedly used the beams to warm his hands and feet when in the field. He was expo

My grandfather was an EE involved in early radar/microwave comm research and repeatedly used the beams to warm his hands and feet when in the field. He was exposed to who knows how much and developed serious sensory and circulatory problems later in life, as well as an unknown brain issue. He was also around some of the overly-exuberant government tests of troop exposure to the immediate after-effects of atomic fission. https://upload.wikimedia.org/wikipedia/commons/7/73/Exercise_Desert_Rock_I_%28Buster-Jangle_Dog%29_001.jpg https://upload.wikimedia.org/wikipedia/commons/7/73/Exercise...