Congratulations Dimitri, you've activated Hawk's trap card. He just wishes he had that nifty film that William Coolidge put out on the subject.
"So light and heat are on a spectrum, right? On one end-" he gestures with one hand, "you have radio waves, and on the other end you have-" gestures with his other hand, "gamma rays, which are caused by nuclear radiation, with the whole spectrum of visible light smack-bang in the middle. Our pal Roy G. Biv. X-rays sit just between gamma rays and visible light, they can penetrate most materials, but not everything. Bones and metal, fr'instance, they bounce off of. Some materials glow when exposed to them, right? So with a screen made of those materials, you can more or less look straight through someone, because it's bright where the x-rays come through and dark where they bounce off. We use it for setting broken bones properly or finding bullets in people nowadays."
no subject
"So light and heat are on a spectrum, right? On one end-" he gestures with one hand, "you have radio waves, and on the other end you have-" gestures with his other hand, "gamma rays, which are caused by nuclear radiation, with the whole spectrum of visible light smack-bang in the middle. Our pal Roy G. Biv. X-rays sit just between gamma rays and visible light, they can penetrate most materials, but not everything. Bones and metal, fr'instance, they bounce off of. Some materials glow when exposed to them, right? So with a screen made of those materials, you can more or less look straight through someone, because it's bright where the x-rays come through and dark where they bounce off. We use it for setting broken bones properly or finding bullets in people nowadays."
...
"Y'know, relatively nowadays."