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Cyrus H. McCormick -the first commercially  successful reaper.

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Cyrus H. McCormick -the first commercially  successful reaper.

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-The first reapers cut the standing grain and, with a revolving reel, swept it onto a platform from which it was raked off into piles by a man walking alongside.
-The invention of two successful reaping machines  brought about an end to hours of tedious field work and encouraged the invention and manufacture of other labor-saving farm implements and machinery.

source:https://www.thoughtco.com/cyrus-mccormick-mechanical-reaper-1991634

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-A typewriter is a mechanical or electromechanical machine for writing characters similar to those produced by printer's movable type.
-The typewriter quickly became an indispensable tool for practically all writing other than personal handwritten correspondence. It was widely used by professional writers, in offices, and for business correspondence in private homes.

source: https://en.wikipedia.org/wiki/Typewriter

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-A match is a tool for starting a fire.
-The modern matches consisted of wooden splints or sticks of cardboard coated with sulphur and tipped with a mixture of sulphide of antimony, chlorate of potash, and gum. The treatment with sulphur helped the splints to catch fire, and the odor was improved by the addition of camphor. They were much safer and more efficient.

source: https://en.wikipedia.org/wiki/Match

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-It was a new weapon which could move and attack under the water during the American Revolutionary War
-Although the first submarine failed, the existence of submarine had changed how naval battle works.

source: https://en.wikipedia.org/wiki/History_of_submarines

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-Jefferson's moldboard had a further advantage than others.
-It could plow a stony field without breaking. It was highly successful in the eastern United States, but less effective against the clay soils and sod of the Midwest.

source: https://www.monticello.org/site/plantation-and-slavery/moldboard-plow

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-As a stove, it produces more heat and less smoke than an ordinary open fireplace.
- It had a hollow baffle near the rear (to transfer more heat from the fire to a room's air) and relied on an "inverted siphon" to draw the fire's hot fumes around the baffle.

source: https://en.wikipedia.org/wiki/Franklin_stove

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-It helps separate cotton from its seeds.
-This machine revolutionized the cotton industry of the South. After the invention of the cotton gin, the yield of raw cotton doubled each decade after 1800.

source:https://en.wikipedia.org/wiki/Cotton_gin

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-Old Farmer's Almanac is a reference book that contains weather forecasts, tide tables, planting charts, astronomical data, recipes, and articles on a number of topics, including gardening, sports, astronomy, and farming. The Almanac also features anecdotes and a section that predicts trends in fashion, food, home décor, technology, and living for the coming year.
-As a reference book, it helps americans improve their lives in many aspects.

source: https://en.wikipedia.org/wiki/Old_Farmer%27s_Almanac