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A hand tool is any tool that is powered by hand rather than a motor. [ 1] Categories of hand tools include wrenches, pliers, cutters, files, striking tools, struck or hammered tools, screwdrivers, vises, clamps, snips, hacksaws, drills, and knives . Outdoor tools such as garden forks, pruning shears, and rakes are additional forms of hand tools.
Pliers are a hand tool used to hold objects firmly, possibly developed from tongs used to handle hot metal in Bronze Age Europe. [ 1] They are also useful for bending and physically compressing a wide range of materials. Generally, pliers consist of a pair of metal first-class levers joined at a fulcrum positioned closer to one end of the ...
The tools used for manual technical drawing have been displaced by the advent of computer-aided drawing, drafting and design . The ship's steam machinery installation drawing for the iron-clad CSS Texas, 1865 Hand drawing for the facade of Ennis House, 1969
A pair of bronze tweezers attributed to the Minoan civilization, c. 2900–1050 B.C. Tweezers are small hand tools used for grasping objects too small to be easily handled with the human fingers. Tweezers are thumb-driven forceps most likely derived from tongs used to grab or hold hot objects since the dawn of recorded history.
Traditional animation (or classical animation, cel animation, or hand-drawn animation) is an animation technique in which each frame is drawn by hand. The technique was the dominant form of animation, until the final few years of the 20th century, when there was a shift to computer animation in the industry, specifically 3D computer animation.
The first digital electronic computer was developed in the period April 1936 - June 1939, in the IBM Patent Department, Endicott, New York by Arthur Halsey Dickinson. [35] [36] [37] In this computer IBM introduced, a calculating device with a keyboard, processor and electronic output (display). The competitor to IBM was the digital electronic ...
Design. It consists of a length of tube of around 4 mm to 6 mm in diameter, often made of coiled steel springs, with a push-button on one end. Three metal wires protrude from the other end, each sprung to bend outwards, away from the tube's axis, but with their tips bent inwards to form teeth. The push-button drives the wires down the tube ...
Hands-free computing is any computer configuration where a user can interface without the use of their hands, an otherwise common requirement of human interface devices such as the mouse and keyboard. Hands-free computing is important because it is useful to both able and disabled users. Speech recognition systems can be trained to recognize ...
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