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— Paul Romer"Human material existence is limited by ideas, not stuff, people don't need copper wires they need ways to communicate, oil was a contaminant, then it became a fuel"
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Of all the works of man I like best Those which have been used. The copper pots with their dents and flattened edges The knives and forks whose wooden handles Have been worn away by many hands: such forms Seemed to me the noblest.
— Bertolt Brecht
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Passing just lately over this lake, ... and examining this water next day, I found floating therein divers earthy particles, and some green streaks, spirally wound serpent-wise, and orderly arranged, after the manner of the copper or tin worms, which distillers use to cool their liquors as they distil over. The whole circumference of each of these streaks was about the thickness of a hair of one's head. ... all consisted of very small green globules joined together: and there were very many small green globules as well. [The earliest recorded observation of the common green alga Spyrogyra.]
— Antonie van Leeuwenhoek
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