Indian Institute Of Technology, Roorkee
Businessweek
Native copper does not naturally happen in large amounts, however copper ores are fairly frequent and a few of them produce metal easily when burned in wooden or charcoal fires. Eventually, the working of metals led to the invention of alloys corresponding to bronze and brass (about 4000 BCE). The first uses of iron alloys such as metal dates to round 1800 BCE. Other technological advances made during the Paleolithic era were clothes and shelter; the adoption of each applied sciences can’t be dated exactly, however they have been a key to humanity’s progress. As the Paleolithic era progressed, dwellings grew to become more subtle and more elaborate; as early as 380 ka, people had been constructing short-term wood huts.
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In round 2000 BCE, the Minoans on the Greek island of Crete built a fifty-kilometer (thirty-mile) street leading from the palace of Gortyn on the south facet of the island, through the mountains, to the palace of Knossos on the north aspect of the island. The earliest recognized use of wind energy is the sailing ship; the earliest document of a ship beneath sail is that …
