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The term "horse power" probably predates the name of the horsepower unit of measurement. [Notes 1] The word "power" in late-19th-century American English, for example, was often used for any example in the whole category of power sources, including water powers, wind powers, horse powers (for example, sweep powers), dog powers, and even (in a few cases) sheep powers; in the Pennsylvania Oil ...
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The Jamaican sprinter Usain Bolt produced a maximum of 3.5 hp (2.6 kW) 0.89 seconds into his 9.58 second 100-metre (109.4 yd) sprint world record in 2009. [15] [failed verification] In 2023 a group of engineers modified a dynamometer to be able to measure how much power a horse can produce. This horse was measured to 5.7 hp (4.3 kW). [16]
Engine power is the power that an engine can put out. It can be expressed in power units, most commonly kilowatt, pferdestärke (metric horsepower), or horsepower.In terms of internal combustion engines, the engine power usually describes the rated power, which is a power output that the engine can maintain over a long period of time according to a certain testing method, for example ISO 1585.
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They can reach speeds of up to 34 km/h (21 mph; 18 kn), [1] [2] [3] easily exceeding the world records set by competitive rowing which stand at about 20 km/h (12 mph; 11 kn). This speed advantage is achieved since hydrofoils lack a submerged body to provide buoyancy , greatly reducing the drag force.
Horse ferry in Chillicothe, Ohio in 1900. Two horses for power, with Capt. Horace McElfresh and son. A team boat, horse boat, or horse ferry, is a watercraft powered by horses or mules, generally using a treadmill, which serves as a horse engine. [1] [2] Team boats were popular as ferries in the United States from the mid-1810s to the 1850s.
Costner, whose “Yellowstone” character John Dutton was killed off in the Season 5 Part 2 premiere, said of the finale, “I’m not thinking about [the ‘Yellowstone’ finale]. I don’t ...