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.

Diego

Diego is a Spanish masculine given name. It derives from a re-analysis of Sant Yago ("Saint Jacob"), viz. in reference to Saint James the Greater, re-analysed as San Diego.

In today's Spanish-speaking countries, Diego and Santiago are common as given names; Diego, Santiago and Sandiego are found as surnames. The forms Tiago, Thiago, Diago and Diogo are seen mostly in Portuguese speaking (Lusophone) countries.

History

The name is on record since the High Middle Ages (Diego de Acebo, d. 1207).

During the medieval era, the names "Sant Yago", "Diago" and "Diego" seem to have coexisted. "Sant Yago" is used, for example, in a letter by James II of Aragon dated 1300: "[...] maestro de la cavalleria de Sant Yago et de la dita orden [...]".

"Diago" is recorded, for example, in "Et fue a casa del Rey. e mostrolo a don diago que era adelantado del Rey" (Fuero de Burgos, c. 1240)

In the Renaissance era, the name was Latinized as Didacus (from Greek διδαχή (didache) "teaching").

"Diego" as a generic name or term for a Spaniard is documented from around 1615, and "dago" is used as such still in the 19th century. By the early 20th century, the term "dago" became an ethnic slur chiefly for Italian Americans, besides also for anyone of Hispanic or Portuguese descent.

Mama

Mama(s) or Mamma(s) may refer to:

Roles

Places

Anatomy

Art, entertainment, and media

Fictional characters

Sérgio Mendes

Sérgio Santos Mendes (Portuguese pronunciation: [ˈsɛʁʒju ˈsɐ̃tuʒ ˈmẽdʒiʃ]; born February 11, 1941) is a Brazilian musician. He has over 55 releases, and plays bossa nova heavily crossed with jazz and funk. He was nominated for an Academy Award for Best Original Song in 2012 as co-writer of the song "Real In Rio" from the animated film Rio.

Mendes is married to Gracinha Leporace, who has performed with him since the early 1970s. Mendes has also collaborated with many artists through the years, including the Black Eyed Peas, with whom he re-recorded in 2006 a version of his breakthrough hit "Mas Que Nada".

Biography

Early career

Mendes was born in Niterói, Brazil, the son of a physician. He attended the local conservatory with hopes of becoming a classical pianist. As his interest in jazz grew, he started playing in nightclubs in the late 1950s just as bossa nova, a jazz-inflected derivative of samba, was emerging. Mendes played with Antônio Carlos Jobim (regarded as a mentor) and many U.S. jazz musicians who toured Brazil.