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canary in a coal mine

  • expressions What is "a canary in a coal mine"?

    A canary in a coal mine is an advanced warning of some danger. The metaphor originates from the times when miners used to carry caged canaries while at work; if there was any methane or carbon monoxide in the mine, the canary would die before the levels of the gas reached those hazardous to humans. See here.

  • Canary In A Coal Mine Seeking Alpha

    You've probably heard the expression canary in a coal mine before. And you might know the background as well. If you're not familiar with the phrase or where it

  • Canary in a Coal Mine by Jennifer Brea Kickstarter

    Jennifer Brea is raising funds for Canary in a Coal Mine on Kickstarter! A film about life with M.E., the most prevalent and devastating disease your ...

  • Canary In A Coal Mine Seeking Alpha

    You've probably heard the expression canary in a coal mine before. And you might know the background as well. If you're not familiar with the phrase or where it

  • The Police-Canary in a Coalmine YouTube

    Jun 29, 2008· The Police video of canary in a coalmine

  • Canary In A Coal Mine Seeking Alpha

    You've probably heard the expression canary in a coal mine before. And you might know the background as well. If you're not familiar with the phrase or where it

  • Canary in a coal mine Idioms by The Free Dictionary

    Refers to the former practice of taking caged canaries into coal mines. The birds would die if methane gas became present and thereby alert miners to the danger. Wildlife in disaster movies assumes the role of the canary in a coal mine, fleeing the

  • What does It Mean to be a "Canary in a Coal Mine"?

    Life for an actual canary in a coal mine could be described in three words: "short but meaningful.". Early coal mines did not feature ventilation systems, so legend has it that

  • Canary in a Coal Mine by Jennifer Brea Kickstarter

    Jennifer Brea is raising funds for Canary in a Coal Mine on Kickstarter! A film about life with M.E., the most prevalent and devastating disease your ...

  • The Police-Canary in a Coalmine YouTube

    Jun 29, 2008· The Police video of canary in a coalmine

  • Canary In A Coal Mine Seeking Alpha

    You've probably heard the expression canary in a coal mine before. And you might know the background as well. If you're not familiar with the phrase or where it

  • MSHA: A Pictorial Walk Through the 20th Century Canaries

    Carbon monoxide, a potentially deadly gas devoid of color, taste or smell, can form underground during a mine fire or after a mine explosion. Today's coal miners must ...

  • The Story of the Real Canary in the Coal Mine Smart

    On this day in 1986, a mining tradition dating back to 1911 ended: the use of canaries in coal mines to detect carbon monoxide and other toxic gases before they hurt humans. New plans from the government declared that the electronic nose, a detector with a digital reading, would replace the birds, according to the BBC.

  • Canary in a coal mine Idioms by The Free Dictionary

    Refers to the former practice of taking caged canaries into coal mines. The birds would die if methane gas became present and thereby alert miners to the danger. Wildlife in disaster movies assumes the role of the canary in a coal mine, fleeing the

  • canary in a coal mine Wiktionary

    Dec 02, 2017· canary in a coal mine (plural canaries in a coal mine or canaries in coal mines) (idiomatic) Something whose sensitivity to adverse conditions makes it a useful early indicator of such conditions; something which warns of the coming of greater danger or trouble by a deterioration in its health or welfare.

  • The Police-Canary in a Coalmine YouTube

    Jun 29, 2008· The Police video of canary in a coalmine

  • Domestic canary Wikipedia

    The domestic canary, ... The phrase "canary in a coal mine" is frequently used to refer to a person or thing which serves as an early warning of a coming crisis.

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