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Santiago Luna

Poster

Laboratorio de diseño

A poster is any piece of printed paper designed to be attached to a wall or vertical surface.^[1] Typically posters include both textual and graphic elements, although a poster may be either wholly graphical or wholly text. Posters are designed to be both eye-catching and informative. Posters may be used for many purposes. They are a frequent tool of advertisers (particularly of events, musicians and films), propagandists, protestors and other groups trying to communicate a message. Posters are also used for reproductions of artwork, particularly famous works, and are generally low-cost compared to original artwork. The modern poster, as we know it, however, dates back to the 1840s and 1850s when the printing industry perfected colour lithography and made mass productionpossible." ^[2]

Introduction[edit]

According to the French historian Max Gallo, "for over two hundred years, posters have been displayed in public places all over the world. Visually striking, they have been designed to attract the attention of passers-by, making us aware of a political viewpoint, enticing us to attend specific events, or encouraging us to purchase a particular product or service."^[3] The modern poster, as we know it, however, dates back to the mid-nineteenth century, when several separate but related changes took place. First, the printing industry perfected colour lithography and made mass production of large and inexpensive images possible. Second, government censorship of public spaces in countries like France was lifted. And finally, advertisers began to market mass-produced consumer goods to a growing populace in urban areas.^[4]

"In little more than a hundred years", writes poster expert John Barnicoat, "it has come to be recognized as a vital art form, attracting artists at every level, from painters like Toulouse-Lautrec and Mucha to theatrical and commercial designers."^[5] They have ranged in styles from Art Nouveau, Symbolism, Cubism, and Art Deco to the more formal Bauhaus and the often incoherent hippie posters of the 1960s.

Ref. text : https://en.wikipedia.org/wiki/Poster

Pereira Risaralda

Di.Santiago Luna

LP

Imagen de un disco Long Play (LP) junto con el logotipo que designó inicialmente al formato

Tipo de medio

Reproducción de audio

Codificación

Modulación analógica de surco

Capacidad

Originalmente de 22 minutos por cada lado.

Mecanismo de lectura

Aguja de zafiro de microsurco

Radio máximo de la punta de la aguja: 1 mil (25,4 µm)

Mecanismo de escritura

Tornamesa de corte

Desarrollador

Columbia Records

Lanzamiento

1948

Dimensiones

12 pulgadas (30,5 cm)

Peso

90-240 gramos

Uso

Audio

Formatos competidores

45 RPM

Cronología

78 RPM

[editar datos en Wikidata]

Un LP¹ o elepé² (del inglés long play), también llamado disco de larga duración, es un disco de vinilo de tamaño grande, de 30,5 cm de diámetro, en el cual se puede grabar, en formato analógico, un máximo de unos 20 a 25 minutos de sonido por cada cara. Los LP suelen constar de unas ocho, diez o doce canciones, dependiendo de su duración, y están grabados a una velocidad de 33 y 1/3 revoluciones por minuto (33 RPM).

Los primeros discos de larga duración se comercializaron hacia 1948, aunque ya existía un precedente de este formato, desarrollado en 1930. Este tipo de disco fue la principal manera de publicar música grabada desde la década de 1950 hasta la de 1980.

A partir de mediados de los años 1980, los LP empezaron a perder protagonismo en favor de los casetes, más pequeños y resistentes, y ambos formatos fueron desplazados por los CDs. En la actualidad, en algunos países como Estados Unidos y países europeos hay un resurgimiento del formato, lo que hace que, ocasionalmente, sean publicadas grabaciones nuevas en LP.