Search results
Results From The WOW.Com Content Network
A radio band is a small frequency band (a contiguous section of the range of the radio spectrum) in which channels are usually used or set aside for the same purpose. To prevent interference and allow for efficient use of the radio spectrum, similar services are allocated in bands.
The Enigmatic Foe (still from the Not Available sessions, 1974). In early 1972, the band left San Mateo and relocated to 20 Sycamore St, San Francisco; a studio they named "El Ralpho", which boasted a completely open ground floor (seemingly ideal for a sound stage), allowing the group to expand their operations and also begin preliminary work on their most ambitious project up to that point, a ...
There are no precisely defined boundaries between the bands of the electromagnetic spectrum; rather they fade into each other like the bands in a rainbow (which is the sub-spectrum of visible light). Radiation of each frequency and wavelength (or in each band) has a mix of properties of the two regions of the spectrum that bound it.
Residential permits are available in many countries globally whereby a valid license from one country will be honored by other countries under international treaties. In early 2010, only North Korea had an absolute ban on ham radio operator licenses, although many countries still maintain careful records of ham licensees, and limit their ...
Many notable bands originally went by different names before their mainstream breakthrough. [1] This list of original names of bands list only former official band names that are significantly different from the eventual "famous" name. This list does not include former band names that have only minor differences, such as stylisation changes ...
The origins of rock and roll are complex.Rock and roll emerged as a defined musical style in the United States in the early to mid-1950s. It derived most directly from the rhythm and blues music of the 1940s, [1] which itself developed from earlier blues, the beat-heavy jump blues, boogie woogie, up-tempo jazz, and swing music.
Argentine rock (known locally as rock nacional [ˈrok nasjoˈnal], "national rock" in the sense of "local", "not international") is rock music composed or performed by Argentine bands or artists mostly in Spanish. [1] [2] Argentine rock was the earliest incarnation of Spanish-language rock. It began by recycling hits of English-language rock ...
Also in Germany working on it is ongoing since 1922. 1925 appear the first electrically recorded disks in both countries. At the Leipzig Spring Fair, the first miniature camera "Leica" is presented to the public. John Logie Baird performs the first screening of a living head with a resolution of 30 vertical lines using a Nipkow disk.