mechanical recording head
51Marshall McLuhan — McLuhan redirects here. For the son of Marshall McLuhan, see Eric McLuhan. Marshall McLuhan Marshall McLuhan in the early 1970s Born July 21, 1911(1911 07 21) Edmonton, Alberta, Canada …
52stage design — Aesthetic composition of a dramatic production as created by lighting, scenery, costumes, and sound. While elements such as painted screens and wheeled platforms were used in the Greek theatre of the 4th century BC, most innovations in stage… …
53technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
54Marilyn Manson (band) — Marilyn Manson Marilyn Manson performing live in Florence in 2007. Background information Origin Fort Lauderdale, Florida …
55Cassette deck — A cassette deck is a type of tape recorder for playing or recording audio compact cassettes. A deck was formerly distinguished from a recorder as being part of a stereo component system, while a recorder had a self contained power amplifier (and… …
56Royalties — Not to be confused with Royal family. Royalty cheque. Royalties (sometimes, running royalties, or private sector taxes) are usage based payments made by one party (the licensee ) to another (the licensor ) for the right to ongoing use of an asset …
57Guitar amplifier — Mesa Boogie Mark IV, a guitar combo amplifier A guitar amplifier (or guitar amp) is an electronic amplifier designed to make the signal of an electric or acoustic guitar louder so that it will produce sound through a loudspeaker. Most guitar… …
58Early IBM disk storage — The invention of magnetic disk storage, pioneered by IBM in the 1950s, was a critical component of the computer revolution. This article surveys the major IBM computer disk drives introduced in the 1950s, 1960s and early 1970s. The basic… …
59ear, human — ▪ anatomy Introduction organ of hearing and equilibrium that detects and analyzes noises by transduction (or the conversion of sound waves into electrochemical impulses) and maintains the sense of balance (equilibrium). The human ear, like …
60VHS — Infobox media name = Video Home System | caption = Top view of VHS cassette with ruler for scale type = Video recording media encoding = FM on magnetic tape common lengths = 120, 160 minutes (Standard Play Mode) unusual lengths = 5, 10, 15, 30,… …
