Canaries were used to indicate gases underground. If a bird showed abnormal behaviour or died, the miners immediately exited this part of the pit. The sensitive birds react to a lack of oxygen much more quickly than people do.
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Creator: Steffi Groß-Hanke, Saarbrücken, Staatskanzlei des Saarlandes Open Gallery
Subject Keywords: Das Erbe Kapitel 16 – Leib und Leben