Electro-motograph - meaning and definition. What is Electro-motograph
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What (who) is Electro-motograph - definition

GENRE OF ELECTRONIC MUSIC AND EARLY HIP HOP
Electro funk; Electro boogie; Electrofunk; Electro-funk; Neo-electro; Electrocore; Nu Electro; Electro music; 1980s-electro; Electro-soul; Electro (genre)
  • [[Afrika Bambaataa]] (left) in 2004

Electro-motograph      
An invention of Thomas A. Edison. A cylinder of chalk, moistened with solution of caustic soda, is mounted so as to be rotated by a handle. A diaphragm has an arm connected to its center. This arm is pressed against the surface of the cylinder by a spring. When the cylinder is rotated, a constant tension is exerted on the diaphragm. If a current is passed through the junction of arm and cylinder the electrolytic action alters the friction so as to change the stress upon the diaphragm. If the current producing this effect is of the type produced by the human voice through a microphone the successive variations in strain upon the diaphragm will cause it to emit articulate sounds. These are produced directly by the movement of the cylinder, the electrolytic action being rather the regulating portion of the operation. Hence very loud sounds can be produced by it. This has given it the name of the loud- speaking telephone. The same principle may be applied in other ways. But the practical application of the motograph is in the telephone described. Fig. 158. ELECTRO-MOTOGRAPH TELEPHONE
electro         
WIKIMEDIA DISAMBIGUATION PAGE
Electro (disambiguation)
[?'l?ktr??]
¦ noun (plural electros)
1. short for electrotype or electroplate.
2. a style of dance music with a fast beat and synthesized backing track.
3.67 m Advanced Electro Optical System Telescope         
U.S. AIR FORCE OPTICAL TELESCOPE IN HAWAII
3.67m Advanced Electro Optical System Telescope; AEOS
The 3.67 m Advanced Electro Optical System Telescope is a Department of Defense telescope at Haleakala Observatory.

Wikipedia

Electro (music)

Electro (or electro-funk) is a genre of electronic music and early hip hop directly influenced by the use of the Roland TR-808 drum machines, and funk. Records in the genre typically feature drum machines and heavy electronic sounds, usually without vocals, although if vocals are present they are delivered in a deadpan manner, often through electronic distortion such as vocoding and talkboxing. This is the main distinction between electro and previously prominent genres such as disco, in which the electronic sound was only part of the instrumentation. It also palpably deviates from its predecessor boogie for being less vocal-oriented and more focused on electronic beats produced by drum machines.

Following the decline of disco music in the United States, electro emerged as a fusion of funk and early hip-hop with principal influences from New York boogie, German and Japanese electronic pop music. The genre emerged with musicians Arthur Baker, Afrika Bambaataa, Warp 9, and Hashim. Seminal electro tracks included "Planet Rock" (1982) and "Nunk" (1982), both featuring its characteristic TR-808 drum beats.

The early 1980s were electro's mainstream peak. By the mid 1980s, the genre moved away from its electronic and funk influences, using harder edged beats and rock samples, exemplified by Run DMC. Electro became popular again in the late 1990s with artists such as Anthony Rother and DJs such as Dave Clarke. A third wave of popularity occurred in 2007. Electro has branched out into subgenres, including electrocore and skweee.