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  • 1Fossil-fuel power station — A working coal plant in Rochester, Minnesota The St. Clair Power Plant, a large coal fired ge …

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  • 2Ore dock — Laker at dock in Duluth, Minnesota showing scale …

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  • 3Fossil fuel power plant — A fossil fuel power plant burns fossil fuels such as coal, natural gas or petroleum (oil) to produce electricity.Fossil fuel power plants are designed on a large scale for continuous operation. In many countries, such plants provide most of the… …

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  • 4Granite Railway — The Granite Railway was one of the first railroads in the United States, built to convey granite from Quincy, Massachusetts to a dock on the Neponset River in Milton, Massachusetts. From there boats carried the heavy stone to Charlestown for… …

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  • 5Sleeps Hill railway station, Adelaide — Sleeps Hill was the location of a number of quarries which became the source of ballast stone for the South Australian Railways (SAR). From 1909, a branch line, parallel to the main line and the Clapham branch line, served the Sleeps Hill… …

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  • 6hand tool — any tool or implement designed for manual operation. * * * Introduction  any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… …

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