Whistle: Difference between revisions
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==Industrial whistles== | ==Industrial whistles== | ||
[[Image:Police whistles.jpg| | [[Image:Police whistles.jpg|thumb|250 px|Examples of police whistles]] | ||
Industrial whistles are used for [[Distress signal|signal]]ling and [[time|timekeeping]] both on [[railroad]] and [[ship]]s, and in [[factory|factories]]. Most of these whistles were [[steam power]]ed and not standardized. Individual [[locomotive]]s could be identified by their whistles. At noontime in industrial areas up into the [[1950s]] whistles of every pitch could be heard, as each factory had a boiler and a whistle, if not full steam power. | Industrial whistles are used for [[Distress signal|signal]]ling and [[time|timekeeping]] both on [[railroad]] and [[ship]]s, and in [[factory|factories]]. Most of these whistles were [[steam power]]ed and not standardized. Individual [[locomotive]]s could be identified by their whistles. At noontime in industrial areas up into the [[1950s]] whistles of every pitch could be heard, as each factory had a boiler and a whistle, if not full steam power. | ||
