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The chlorination of drinking water is accepted worldwide as an effective way to kill deadly pathogens, but at the turn of the 20th Century, adding chlorine to water was considered revolutionary - even heretical - by science, until a courageous physician proved it could be done.

Produktbeschreibung
The chlorination of drinking water is accepted worldwide as an effective way to kill deadly pathogens, but at the turn of the 20th Century, adding chlorine to water was considered revolutionary - even heretical - by science, until a courageous physician proved it could be done.