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John Napier invented a system called ''Napiers Bones''made from horn, bone or ivory the device allowed the capability of multiplying by adding numbers and dividing by subtracting.
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he invented a reflecting teloscope.made from horn, bone or ivory the device allowed the capability of multiplying by adding numbers and dividing by subtracting.
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Samuel Soemmering invented a crude telograph. It send messages to important people.
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Jacob Jerkins made a fridge for people to store cool food.
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in China rope was invtented by acient egypts.
