1 янв 1925 г. - How to build an x-ray machine -- for boys. A public disregard for radiation and health.

Описание:

The Boys Book of Science is published, complete with instructions about building x-ray machines so that “you can see the bones in your hand.” Yet 21 years beforehand, an assistant for Thomas Edison, Clarence Dally, died from exposure to x-rays. Such is the state of the precautionary principle in the day, that even a boys book of science fails to take the deadly nature of x-rays into account when encouraging boys to go into scientific fields.

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