Thursday, 4 January 2018

Canary in a China Mine

In the old day, or possibly still today I’m not sure, coal miners used to carry a live canary in a cage when going into the mines. The strategy is that if any poisonous gases start to leak, the canary will die first and give the humans enough warning to get out in time. This […]

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source https://cryptocurrencyonline.co/canary-in-a-china-mine/

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