@papal1500

In case you don't fully understand what the fish means, I'll try to explain this as simply as I can. I take x-rays all the time at my job, so I have a decent understanding of it. When you take x-ray images, there are 2 parts. The part of the machine that releases X-ray radiation, and the tray containing the film that absorbs the radiation, which places images onto the film inside the tray. We have computers to do this digitally for us now. Whenever x-ray radiation is released from the machine, the crystals inside the tray react with the film, and place the imprint of whatever was in way of the x-rays on the film, which can then be processed. This guy, literally just took a fish, and placed it onto the tray, didn't turn on the x-ray machine, and the tray reacted the same way it would have to x-ray radiation. To summarize, the fish had absorbed so much radioactive material, that it didn't even need x-ray radiation for the fish to be imprinted onto the film. And that is terrifying! Hope this helped!