Information AboutTool |
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is directly descended from ancient hand tools]] A tool or '''device''' is a piece of '''equipment''' which typically provides a Mechanical Advantage in accomplishing a physical task, or provides an ability that is not naturally available to the user of a tool. The most basic tools are Simple Machine s. For example, a Crowbar simply functions as a Lever . The further out from the pivot point, the more force is transmitted along the lever. When particularly intended for domestic use, a tool is often called a '''utensil'''. , 2005 Rolling Hills Wildlife Adventure: Chimpanzee making tools. Now humans' unique relationship to tools is considered to be that we are the only species that uses tools to make ''other'' tools. Most , 2006 . Some tools can also serve as Weapons , such as a Hammer or a Knife . Similarly, people can use weapons, such as Explosive s, as tools. FUNCTIONS OF TOOLS Many tools or groups of tools serve to perform one or more of a set of basic operations, such as:
Tool substitution Often, by design or coincidence, a tool may share key functional attributes with one or more other tools. In this case, some tools can substitute for other tools, either as a make-shift solution or as a matter of practical efficiency. "One tool does it all" is a motto of some importance for workers who cannot practically carry every specialized tool to the location of every work task. Tool substitution may be divided broadly into two classes: substitution "by-design", or "multi-purpose" use, and substitution as make-shift. In many cases, the designed secondary functions of tools are not widely known. As an example of the former, many wood-cutting Hand Saws integrate a Carpenter's Square by incorporating a specially shaped handle which allows 90° and 45° angles to be marked by aligning the appropriate part of the handle with an edge and scribing along the back edge of the saw. The latter is illustrated by the saying "All tools can be used as hammers." Nearly all tools can be repurposed to function as a hammer, even though very few tools are intentionally designed for it. Multi-use tools
HISTORY Use of tools started at the beginning of the Stone Age . Humans have made knives, among the oldest tools, since that time. Sophisticated tools have been used since the beginning of civilization.Susan Wise Bauer, '' The History of the Ancient World: From the Earliest Accounts to the Fall of Rome '', W. W. Norton (March 26, 2007), ISBN 978-0393059748. s) and wind ( Windmill s). , 2006 SEE ALSO REFERENCES |
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