Tangerine Dream

Tangerine Dream are a German electronic music group founded in 1967 by Edgar Froese. The group has seen many personnel changes over the years, with Froese being the only continuous member until his death in January 2015. Noted electronic music artist, drummer, and composer Klaus Schulze was briefly a member in an early lineup. The best known and most constant line-up of the group, which worked during their most influential mid-1970s period, was a trio with Froese, Christopher Franke, and Peter Baumann. In the late 1970s, Johannes Schmoelling replaced Baumann, and this lineup was stable and extremely productive as well.

Tangerine Dream's recorded output has been prolific, having released over one hundred albums. Their work with the Ohr electronic music label, a period called the "Pink Years" because of a pink ear included in Ohr's logo, produced albums that had a pivotal role in the development of the musical genre known as krautrock. Their "Virgin Years," so-called because of their association with Virgin Records, produced albums that helped define what became known as the Berlin School of electronic music. These and later albums were influential in both the development of electronic dance music and also new-age music, although the band themselves disliked that term. From the late 1990s into the 2000s, Tangerine Dream continued to explore other styles of electronica.

CT scan

A CT scan, also called X-ray computed tomography (X-ray CT) or computerized axial tomography scan (CAT scan), makes use of computer-processed combinations of many X-ray images taken from different angles to produce cross-sectional (tomographic) images (virtual 'slices') of specific areas of a scanned object, allowing the user to see inside the object without cutting.

Digital geometry processing is used to generate a three-dimensional image of the inside of the object from a large series of two-dimensional radiographic images taken around a single axis of rotation.Medical imaging is the most common application of X-ray CT. Its cross-sectional images are used for diagnostic and therapeutic purposes in various medical disciplines. The rest of this article discusses medical-imaging X-ray CT; industrial applications of X-ray CT are discussed at industrial computed tomography scanning.

As X-ray CT is the most common form of CT in medicine and various other contexts, the term computed tomography alone (or CT) is often used to refer to X-ray CT, although other types exist (such as positron emission tomography [PET] and single-photon emission computed tomography [SPECT]). Older and less preferred terms that also refer to X-ray CT are computed axial tomography (CAT scan) and computer-aided/assisted tomography. X-ray CT is a form of radiography, although the word "radiography" used alone usually refers, by wide convention, to non-tomographic radiography.

East Berlin

East Berlin existed between 1949 and 1990. It comprised the eastern regions of Berlin and consisted of the Soviet sector of Berlin that was established in 1945. The American, British, and French sectors became West Berlin, a part strongly associated with West Germany. East Berlin was the de facto capital of East Germany. From 13 August 1961 until 9 November 1989, East Berlin was separated from West Berlin by the Berlin Wall. The official name that was used by the East German government changed over the course of years from "Greater Berlin" to "Democratic Berlin" to "Berlin, Capital of the GDR" or simply "Berlin." Within official usage, it had become more widespread since the 1970s to refer only to the Western part of the city with a different name ("Westberlin"), whilst calling the Eastern part simply "Berlin". (See also Naming conventions).

Overview

With the London Protocol from 1944, the United States, the United Kingdom and the Soviet Union decided to divide Germany into three occupation zones and to establish a special area of Berlin, which was occupied by the three Allied Forces together. In May 1944, the Soviet Union installed a city government for the whole city that was called "Magistrate of Greater Berlin", which existed until 1947. After the war, the Allied Forces initially administrated the city together within the Allied Kommandatura, which served as the governing body of the city. However, in 1948 the Soviet representative left the Kommandatura and the common administration broke apart during the following months. In the Soviet sector, a separate city government was established, which continued to call itself "Magistrate of Greater Berlin".

Edgar Froese

Edgar Willmar Froese (6 June 1944 – 20 January 2015) was a German artist and electronic music pioneer, best known for founding the electronic music group Tangerine Dream. Although his solo and group recordings prior to 2003 name him as "Edgar Froese", his solo albums from 2003 onward bear the artist name "Edgar W. Froese".

Biography

Froese was born in Tilsit, East Prussia, on D-Day during the Second World War; members of his family, including his father, had been killed by the Nazis and his mother and surviving family settled in West Berlin after the war. He took piano lessons from the age of 12, and started playing guitar at 15. After showing an early aptitude for art, Froese enrolled at the Academy of the Arts in West Berlin to study painting and sculpture.

In 1965, he formed a band called The Ones, who played psychedelic rock, and some rock and R&B standards. While playing in Spain, The Ones were invited to perform at Salvador Dalí's villa in Cadaqués. Froese's encounter with Dalí was highly influential, inspiring him to pursue more experimental directions with his music. The Ones disbanded in 1967, having released only one single ("Lady Greengrass" / "Love of Mine"). After returning to Berlin, Froese began recruiting musicians for the free-rock band that would become Tangerine Dream.

Dream

Dreams are successions of images, ideas, emotions, and sensations that occur usually involuntarily in the mind during certain stages of sleep. The content and purpose of dreams are not definitively understood, though they have been a topic of scientific speculation, as well as a subject of philosophical and religious interest, throughout recorded history. The scientific study of dreams is called oneirology.

Dreams mainly occur in the rapid-eye movement (REM) stage of sleep—when brain activity is high and resembles that of being awake. REM sleep is revealed by continuous movements of the eyes during sleep. At times, dreams may occur during other stages of sleep. However, these dreams tend to be much less vivid or memorable.

The length of a dream can vary; they may last for a few seconds, or approximately 20–30 minutes. People are more likely to remember the dream if they are awakened during the REM phase. The average person has three to five dreams per night, and some may have up to seven; however, most dreams are immediately or quickly forgotten. Dreams tend to last longer as the night progresses. During a full eight-hour night sleep, most dreams occur in the typical two hours of REM.