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Everything that is not found in nature is invented. Some inventions that had great consequence were the wheel, steam engines, internal combustion engine, power loom,cotton gin, steel plow, refrigerators and freezers, electric lights, automobiles, airplanes,telegraphs, telephones, television receivers and broadcasting, x-rays and CAT scans, cell-phones and other wireless devices, computers and , guns, explosives and nuclear bombs.

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9y ago

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