Hand Tools - Earliest Stone And Metal Tools, Development Of Modern Tools, Modern Technology
sticks human rocks found
Hand tools can be as easily found as made, and the earliest tools used by people included sticks and rocks picked up and used as projectiles, or to pound or dig. The earliest fashioned hand tools date back to the Stone Age. Currently new technologies make hand tools that are battery-powered, so they are still portable, yet easier to use than their precursors.
Tools are an extension of human limbs and teeth, and were first inspired by human limitations. Things which would be torn by an animal with its teeth required less well-equipped humans to use sharp rocks or sticks as knife edges. Sticks could also dig out what human hands could not pull out. They could be used as noisemakers or be thrown at intruders as an intimidation tactic. Even today monkeys and apes use found objects in these ways, so it is not hard to imagine early humans exhibiting this same ingenuity.
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Technology begins in human history when the first stone flints or spear tips were deliberately cut, which are known as Oldowan tools or eoliths. It is very difficult for archaeologists to prove that the sharpened edges of some stone artifacts are the work of human hands rather than the result of the shearing of one stone against another over eons. However, certain improvised tools such as pebbles …
Simple hand tools, which cut or pound or assemble, may now be sold with attached metal or plastic handles, but their basic designs and operations have not changed over time. The plane and the file smooth down metal or wood surfaces. Drills and saws are now primarily electric, to save time and energy. Hammers come in all sizes, from the rock-breaking sledgehammer to the tiny jeweler's model,…
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