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the seed drill allows farmer to sow seeds in well-spaced rows at specific depths at a specific seed rate; each tube creates a hole of a specifi depth, drops in a seed and covers it.
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it was the first practical device to harness the power of steam to produce mechanical work.
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it helped produce more food.
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Its breeding animals to what type they want.
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it was the transition to new manufacturing processes that occurred in the period from about 1760 to some time between 1820 and 1840. This transition included going from hand production methods to machines, new chemical manufacturing and iron production processes.
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a hand-powered multiple spinning machine that was the first machine to improve upon the spinning wheel by making it possible to spin more than one ball of yarn or thread.
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it was important because instead of slaves having to go out there and work for hours picking cotten. there was a machine that worked faster.
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inventors worked throughout the 19th century trying to use the principal of incandescence (making an object glow by heating it with elcectricity) to make practical lights
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it proclaime that "the history of all hitherto existing society is the history of class struggles" and that the inevitable victory of th proletariat, or working class, would put an end to class sociey forever.
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this revolutionized the way we make cars, and how much they cost.
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