Science: How to Avoid Radiation Without Really Knowing It

No normal man could freeze to death without first feeling the cold. None could fry without feeling the heat. But burning and freezing are ancient dangers, and nature has had plenty of time to evolve defenses. X rays and gamma rays are a subtler peril. Until recently, they were unimportant hazards in the human environment; evolution largely ignored them. Modern man can wander unheeding into strong radiation that he cannot feel, see, hear, smell or taste. And unless he carries an artificial radiation sense (a Geiger counter, ionization chamber, etc.), he may get...

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