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What are the developments in science and technology past and present?​

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Answer:

Continuing improvements; such as, the furnace made it possible to SMELT and FORGE metal; such as, copper, about 8000 B.C., and eventually to the discovery of alloys; such as, brass and bronze about 4000 B.C. The first USES of IRON alloys, steel, dates at about 1400 B.C.



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