1980

1980 (MCMLXXX) was a leap year starting on Tuesday (dominical letter FE) of the Gregorian calendar, the 1980th year of the Common Era (CE) and Anno Domini (AD) designations, the 980th year of the 2nd millennium, the 80th year of the 20th century, and the 1st year of the 1980s decade.

Events

January

Radio

Radio is the use of radio waves is to carry information, such as sound, by systematically modulating some property of electromagnetic energy waves transmitted through space, such as their amplitude, frequency, phase, or pulse width. When radio waves strike an electrical conductor, the oscillating fields induce an alternating current in the conductor. The information in the waves can be extracted and transformed back into its original form.

Radio systems need a transmitter to modulate (change) some property of the energy produced to impress a signal on it, for example using amplitude modulation or angle modulation (which can be frequency modulation or phase modulation). Radio systems also need an antenna to convert electric currents into radio waves, and vice versa. An antenna can be used for both transmitting and receiving. The electrical resonance of tuned circuits in radios allow individual stations to be selected. The electromagnetic wave is intercepted by a tuned receiving antenna. A radio receiver receives its input from an antenna and converts it into a form usable for the consumer, such as sound, pictures, digital data, measurement values, navigational positions, etc. Radio frequencies occupy the range from a 3 kHz to 300 GHz, although commercially important uses of radio use only a small part of this spectrum.

Grateful Dead

The Grateful Dead was an American rock band formed in 1965 in Palo Alto, California. Ranging from quintet to septet, the band was known for its unique and eclectic style, which fused elements of country, folk, bluegrass, blues, reggae, rock, improvisational jazz, psychedelia, space rock, for live performances of lengthy instrumental jams, and for their devoted fan base, known as "Deadheads". "Their music," writes Lenny Kaye, "touches on ground that most other groups don't even know exists." These various influences were distilled into a diverse and psychedelic whole that made the Grateful Dead "the pioneering Godfathers of the jam band world". The band was ranked 57th in the issue The Greatest Artists of all Time by Rolling Stone magazine. The band was inducted into the Rock and Roll Hall of Fame in 1994 and their Barton Hall Concert at Cornell University (May 8, 1977) was added to the Library of Congress's National Recording Registry. The Grateful Dead have sold more than 35 million albums worldwide.

Music hall

Music hall is a type of British theatrical entertainment that was popular from the early Victorian era circa 1850 and lasting until 1960. It involved a mixture of popular songs, comedy, speciality acts and variety entertainment. The term is derived from a type of theatre or venue in which such entertainment took place. British music hall was similar to American vaudeville, featuring rousing songs and comic acts, while in the United Kingdom the term "vaudeville"' referred to more working-class types of entertainment that would have been termed "burlesque" in America.

Originating in saloon bars within public houses during the 1830s, music hall entertainment became increasingly popular with audiences, so much so, that during the 1850s, the public houses were demolished and specialized music hall theatres developed in their place. These theatres were designed chiefly so people could consume food and alcohol and smoke tobacco in the auditorium while the entertainment took place. This differed somewhat from the conventional type of theatre, which until then seated the audience in stalls with a separate bar-room. Major music halls, were based around London and included Early music halls like the Canterbury Music Hall in Lambeth, Wilton's Music Hall in Tower Hamlets and The Middlesex, in Drury Lane, otherwise known as the Old Mo.

Radio City Music Hall

Radio City Music Hall is an entertainment venue located in Rockefeller Center in New York City. Its nickname is the Showplace of the Nation, and it was for a time the leading tourist destination in the city. Its interior was declared a city landmark in 1978.

History

The 12-acre (4.9 ha) complex in Midtown Manhattan known as Rockefeller Center was developed between 1929 and 1940 by John D. Rockefeller, Jr., on land leased from Columbia University. The Radio City Music Hall was designed by architect Edward Durell Stone and interior designer Donald Deskey in the Art Deco style.

Its originally planned name was International Music Hall. The names "Radio City" and "Radio City Music Hall" derive from one of the complex's first tenants, the Radio Corporation of America. Radio City Music Hall was a project of Rockefeller; Samuel Roxy Rothafel, who previously opened the Roxy Theatre in 1927; and RCA chairman David Sarnoff. RCA had developed numerous studios for NBC at 30 Rockefeller Plaza, just to the south of the Music Hall, and the radio-TV complex that lent the Music Hall its name is still known as the NBC Radio City Studios.