Old-time radio

The old-time radio era, sometimes referred to as the Golden Age of Radio, refers to a period of radio programming in the United States lasting from the proliferation of radio broadcasting in the early 1920s until the 1950s, when television superseded radio as the medium of choice for scripted programming and radio shifted to playing popular music. During this period, when radio was dominant and filled with a variety of formats and genres, people regularly tuned into their favorite radio programs. According to a 1947 C. E. Hooper survey, 82 out of 100 Americans were found to be radio listeners.

Origins

The broadcasts of live drama, comedy, music and news that characterize the Golden Age of Radio had a precedent in the Théâtrophone, commercially introduced in Paris in 1890 and available as late as 1932. It allowed subscribers to eavesdrop on live stage performances and hear news reports by means of a network of telephone lines. The development of radio eliminated the wires and subscription charges from this concept.

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.

MIS

Mis or MIS may refer to:

Miscellaneous

Biology

The Classic

The Classic (Hangul: 클래식; RR: Keulraesik) is a 2003 South Korean romance melodrama film directed by Kwak Jae-yong.

Plot

The film tells the parallel love stories of a mother and daughter. The story of the mother is told partially in flashbacks.

The movie starts in the present day. The daughter, Ji-hye (Son Ye-jin), is cleaning-up around her house when she comes across a box full of old letters and a diary that detail the story of her mother, Joo-hee (who is also played by Son Ye-jin). Periodically in the movie, Ji-hye reads one of these letters, which starts a flashback scene in which the story of the mother is told. These flashbacks are intertwined with Ji-hye's own story, in which she falls for a fellow student, Sang-min (Jo In-sung), who is involved with the school theater.

The movie tells the story of both relationships. The mother, Joo-hee, visits the countryside as a student one summer and meets Joon-ha (Jo Seung-woo). Together they explore the countryside, playing near a river which they both will always remember as their special place. When a storm starts they take shelter together under a tree, but not before Joo-hee twists her ankle and is rendered helpless. Joon-ha carries her on his back and they struggle home, only to be confronted by her angry parents. Before they separate, Joo-hee gives him a necklace, which he keeps close as a precious reminder of their time together.

MP3 player

An MP3 player is an electronic device that can play digital audio files. The term 'MP3 player' is a misnomer, as most players play more than the MP3 file format. A more accurate, but less utilized term is DAP (Digital Audio Player).

Since the MP3 format is widely used, almost all players can play that format. In addition, there are many other digital audio formats. Some formats are proprietary, such as MP3, Windows Media Audio (WMA), and Advanced Audio Codec (AAC). Some of these formats also may incorporate digital rights management (DRM), such as WMA DRM, which are often part of paid download sites. Other formats are patent-free or otherwise open, such as Vorbis, FLAC, and Speex (all part of the Ogg open multimedia project).

History

The world's first MP3 player was SaeHan Information Systems's MPMan F10, a 32MB portable, launched in South Korea in March 1998. As a local distributor, Eiger Labs introduced this first MP3 Player on the American market in the summer of 1998. It was a very basic unit and wasn't user expandable, though owners could upgrade the memory to 64MB by sending the player back to Eiger Labs with a check for $69.00 + $7.95 shipping.