The first two-wheeled carts have been derived from travois and were first used in Mesopotamia and Iran in round 3000 BCE. Continuing improvements led to the furnace and bellows and offered, for the primary time, the ability to smelt and forge gold, copper, silver, and lead – native metals present in relatively pure type in nature. The benefits of copper tools over stone, bone, and wooden instruments have been shortly obvious to early people, and native copper was in all probability used from close to the start of Neolithic times . Native copper does not naturally occur in giant quantities, but copper ores are fairly common and a few of them produce metal simply when burned in wooden or charcoal fires.
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- Students and school at Illinois Tech are conducting research that harnesses the facility of