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  2. Flywheel energy storage - Wikipedia

    en.wikipedia.org/wiki/Flywheel_energy_storage

    NASA G2 flywheel. Flywheel energy storage (FES) works by accelerating a rotor to a very high speed and maintaining the energy in the system as rotational energy.When energy is extracted from the system, the flywheel's rotational speed is reduced as a consequence of the principle of conservation of energy; adding energy to the system correspondingly results in an increase in the speed of the ...

  3. Warwick Furnace Farms - Wikipedia

    en.wikipedia.org/wiki/Warwick_Furnace_Farms

    Added to NRHP. September 13, 1976. Designated PHMC. May 12, 1948 [2] The Warwick Furnace Farms is a historic district that is located in northern Chester County, Pennsylvania, United States that includes the ruins of an early iron furnace that was owned by Anna Rutter Nutt, widow of Samuel Nutt. [3]

  4. Beam engine - Wikipedia

    en.wikipedia.org/wiki/Beam_engine

    A Watt engine: showing entry of steam and water. A beam engine is a type of steam engine where a pivoted overhead beam is used to apply the force from a vertical piston to a vertical connecting rod. This configuration, with the engine directly driving a pump, was first used by Thomas Newcomen around 1705 to remove water from mines in Cornwall.

  5. Windmill - Wikipedia

    en.wikipedia.org/wiki/Windmill

    The windmills at Kinderdijk in the village of Kinderdijk, Netherlands is a UNESCO World Heritage Site. A windmill is a structure that converts wind power into rotational energy using vanes called sails or blades, by tradition specifically to mill grain (), but in some parts of the English-speaking world, the term has also been extended to encompass windpumps, wind turbines, and other applications.

  6. Traction engine - Wikipedia

    en.wikipedia.org/wiki/Traction_engine

    Traction engine. A traction engine is a steam-powered tractor used to move heavy loads on roads, plough ground or to provide power at a chosen location. The name derives from the Latin tractus, meaning 'drawn', since the prime function of any traction engine is to draw a load behind it.

  7. Gristmill - Wikipedia

    en.wikipedia.org/wiki/Gristmill

    A gristmill (also: grist mill, corn mill, flour mill, feed mill or feedmill) grinds cereal grain into flour and middlings. The term can refer to either the grinding mechanism or the building that holds it. Grist is grain that has been separated from its chaff in preparation for grinding.

  8. Old Forge Farm (Middletown, Virginia) - Wikipedia

    en.wikipedia.org/wiki/Old_Forge_Farm_(Middletown...

    Designated VLR. October 3, 2003 [2] Old Forge Farm, also known as Zane's Furnace, Stephens Fort, and Marlboro Iron Works, is a historic home and farm located near Middletown, Frederick County, Virginia. The original section dates to the 18th century. The house is a two-story, asymmetrical, three-bay, limestone dwelling with a two-story addition ...

  9. Wireless power transfer - Wikipedia

    en.wikipedia.org/wiki/Wireless_power_transfer

    Generic block diagram of a wireless power system. Wireless power transfer (WPT; also wireless energy transmission or WET) is the transmission of electrical energy without wires as a physical link. In a wireless power transmission system, an electrically powered transmitter device generates a time-varying electromagnetic field that transmits ...