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Canaries were once regularly used in coal miningas an early warning system. Toxic gases such as carbon monoxide and methane in the mine would kill the bird.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoThe canary. It would sing until there was some poisonous gas, then it would stop. The miners then knew to get out. This was a very effective method but unfortunately the bird would die in the process.
Wiki User
∙ 14y agoIf methane or other poisonous gases are present, a canary will die quickly enough that the miners have time to leave before succumbing themselves.
Wiki User
∙ 10y agowhere the bird can ''warn'' them. like they'll "sing" and if they are gases down there it will stop ''singing''.
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What kind of birds did miners take underground with them?
Canaries were used in mines to detect deadly gas.
What are diamond mines used for?
Diamond mines are used for mining diamonds.
What type of horses were used in mines?
Ponies were used in the mines. Since large draft horses were to big to fit in the mines, they used ponies to carry tools and pull the mining carts.
What did an ostler do in the mines?
An ostler (hostler) looked after horses. There used to be horses in mines.
Why do miners bring birds into mines to detect poisonous gasses?
They don't do this any more as there are electronic detectors now. Birds or any small creature will be affected by carbon monoxide just as humans. The birds were used because they sang. When they could not be heard, the miners checked them. If they were dead, the miners got out of the mine as fast as possible.
What is canaries in a coal mine?
At one time, canaries were carried into coal mines as an early warning system for the presence of poisonous gases. Since canaries are very small, they would die before humans could be affected.
Is it correct to use the word mines and a pronoun?
The word 'mines' is both a noun (mine, mines) and a verb (mine, mines, mining, mined).A pronoun can be used with the noun mines or a pronoun can take the place of the noun mines. Examples:Our mines are producing to full capacity. They are good source of employment for their local economies.The verb can be used with a pronoun as the subject or the object of the verb. Example:Larry makes a good living from turquoise but he won't tell where he mines them.
How were steam engines used in the past?
Steam engines were first used in the tin mines of Cornwall, England to pump water from the mines which often extended out under the Cornish coastline.
How many vessels did magnetic mines destroy in World War 2?
There were many types of mines used in World War Two. Magnetic mines were some of them.
Was dredging used in the gold mines?
yes, it was
How was gold mines used?
To mine for gold
Where is magnetic separation used in the industry?
in mines
