the canary will let us know: The Canary Will Let Us Know
- 05/05/20 07:39 AM
In the 1800's and until 1986 miner safety from methane gas and other gases were a threat to the coal miners. To protect the coal miners, a testing system was developed where a canary was carried into the mind in a cage. The canary is extremely sensitive to gases and if the canary died the miners would withdraw from the dangerous mind.
In deciding too send canaries into the mines, inventers came up with a developed a somewhat humane device shown. The canary would be carried into the mine in the device. The circular door of the cage would be kept open and had a grill to prevent … (31 comments)
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