In engineering, electromechanics combines electromagnetism and mechanics. Electromechanical devices are those that combine electrical and mechanical parts. These include electric motors and mechanical devices powered by them, such as calculators and adding machines; switches, solenoids, relays, crossbar switches and stepping switches. Engineering is the application of science to the needs of humanity. ... Electromagnetism is the physics of the electromagnetic field: a field, encompassing all of space, composed of the electric field and the magnetic field. ... Mechanics refers to: a craft relating to machinery (from the Latin mechanicus, from the Greek mechanikos, meaning one skilled in machines), or a range of disciplines in science and engineering. ... A motor is a device that converts energy into mechanical power, and is often synonymous with engine. ... A basic arithmetic calculator. ... An adding machine is a type of calculator. ... Electrical switches. ... In engineering, a solenoid is a mechanical device that converts energy into linear motion. ... Automotive style miniature relay A relay is an electrical switch that opens and closes automatically under control of another electrical circuit. ... A crossbar switch is an electromechanical device for switching telephone calls. ... In electrical controls, a stepping switch (also called a uniselector; see Strowger switch, below) is an electromechanical device used, most prominently, in early automatic telephone exchanges to route calls. ...
Mechatronics is the discipline of engineering that combines mechanics, electronics and information technology. A tipical mechatronics diagram, Mechatronics is the synergetic combination of several enginnering disciplines. ... Mechanics refers to: a craft relating to machinery (from the Latin mechanicus, from the Greek mechanikos, meaning one skilled in machines), or a range of disciplines in science and engineering. ... Electronics is the study and use of electrical devices that operate by controlling the flow of electrons or other electrically charged particles in devices such as thermionic valves and semiconductors. ... Categories: Information technology ...
Baird's electromechanical system reached a peak of 240 lines of resolution on BBC television broadcasts in 1936, before being discontinued in favor of a 405 line all-electronic system.
In the U.S. Charles Francis Jenkins was able to demonstrate on June 13, 1925, the transmission of the silhouette image of a toy windmill in motion from a naval radio station to his laboratory in Washington, using a lensed disc scanner with 48 lines per picture, 16 pictures per second.
Electromechanical broadcasts began in Germany in 1929, but were without sound until 1934.
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