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Separates crops from their chaff and straw.
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Invented the cotton gin, a machine that removes the cotton seeds from cotton fiber.
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Invented the iron plow, which dug even deeper into the soil, and was the third president of the United States.
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Invented the reaper, a machine that cuts small grain.
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A machine used to plant/seed fields quickly.
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A combination of the reaper and thresher.
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Invented the steel plow, which let farmers cut through Midwest prairie soil.
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Contained sharp points to discourage livestock from touching fences.
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Invented the milking machine to replace hand milking.
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A world-famous chemist who made important agricultural discoveries and inventions.
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Invented the tractor, which became the source of power for belt-driven machines as well as for pulling.
