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Qu'est-ce (qui) est mechanical$47446$ - définition
LICENSE THAT GRANTS CERTAIN LIMITED PERMISSIONS TO WORK WITH, STUDY, IMPROVE UPON, REINTERPRET, RE-RECORD (ETC.) SOMETHING THAT IS NEITHER A FREE/OPEN SOURCE ITEM NOR IN THE PUBLIC DOMAIN
Mechanical licensing; Mechanical rights; Mechanical licence
Mechanical counter
.jpg?width=200 "Mechanical counter wheels showing both sides. The bump on the wheel shown at the top engages the ratchet on the wheel below every turn.")
DIGITAL COUNTERS BUILT USING MECHANICAL COMPONENTS
Counter (mechanical); Mechanical counters; Veeder-Root Counter; Veeder-Root counter
Mechanical counters are digital counters built using mechanical components. Long before electronics became common, mechanical devices were used to count events.
Mechanical television
![A color televisor. A test card (the famous [[test card F]]) can just be seen through the lens on the right.](https://commons.wikimedia.org/wiki/Special:FilePath/Colour Televisor.JPG?width=200 "A color televisor. A test card (the famous [[test card F]]) can just be seen through the lens on the right.")
![Ernst Ruhmer demonstrating his experimental television system, which was capable of transmitting 5×5 [[pixel]] images of simple shapes over telephone lines, using a 25-element selenium cell receiver (1909)<ref>[https://babel.hathitrust.org/cgi/pt?id=mdp.39015031441952;view=1up;seq=489 "Another Electric Distance-Seer"], ''Literary Digest'', September 11, 1909, page 384.</ref>](https://commons.wikimedia.org/wiki/Special:FilePath/Ernst Ruhmer demonstrating simple television system (1909).jpg?width=200 "Ernst Ruhmer demonstrating his experimental television system, which was capable of transmitting 5×5 [[pixel]] images of simple shapes over telephone lines, using a 25-element selenium cell receiver (1909)<ref>[https://babel.hathitrust.org/cgi/pt?id=mdp.39015031441952;view=1up;seq=489 \"Another Electric Distance-Seer\"], ''Literary Digest'', September 11, 1909, page 384.</ref>")
![Flying spot scanner in a television studio in 1931. This type was used for "head shots" of performers speaking, singing or playing instruments. A bright spot of light projected from the lens at center scanned the subject's face, and the light reflected at each point was picked up by the 8 [[phototube]]s in the dish-shaped mirrors.](https://commons.wikimedia.org/wiki/Special:FilePath/Flying spot scanner 1931.jpg?width=200 "Flying spot scanner in a television studio in 1931. This type was used for \"head shots\" of performers speaking, singing or playing instruments. A bright spot of light projected from the lens at center scanned the subject's face, and the light reflected at each point was picked up by the 8 [[phototube]]s in the dish-shaped mirrors.")
![The [[Nipkow disk]]. This schematic shows the circular paths traced by the holes, that may also be square for greater precision. The area of the disk outlined in black shows the region scanned.](https://commons.wikimedia.org/wiki/Special:FilePath/Nipkow disk.svg?width=200 "The [[Nipkow disk]]. This schematic shows the circular paths traced by the holes, that may also be square for greater precision. The area of the disk outlined in black shows the region scanned.")
A TELEVISION SYSTEM THAT RELIES ON A MECHANICAL SCANNING DEVICE, TO BOTH SCAN AND REPRODUCE THE VIDEO SIGNAL.
Mechanical Television; Electromechanical television; Mechanical TV; Televisor; Baird Televisor; Televisors; Televisory; Mechanical televisions; Baird system; Mechanical scan television
Mechanical television or mechanical scan television is a television system that relies on a mechanical scanning device, such as a rotating disk with holes in it or a rotating mirror drum, to scan the scene and generate the video signal, and a similar mechanical device at the receiver to display the picture. This contrasts with vacuum tube electronic television technology, using electron beam scanning methods, for example in cathode ray tube (CRT) televisions.
Mechanical impedance
QUOTIENT OF FORCE AND RESULTING SPEED IN THE SAME DIRECTION
Mechanical resistance
Mechanical impedance is a measure of how much a structure resists motion when subjected to a harmonic force. It relates forces with velocities acting on a mechanical system.
Wikipédia
Mechanical license
In copyright law, a mechanical license is a license from the holder of a copyright of a composition or musical work, to another party to create a "cover song", reproduce, or sample a portion of the original composition. It applies to copyrighted work that is neither a free/open source item nor in the public domain.
