Playboy

Playboy is an American men's lifestyle and entertainment magazine. It was founded in Chicago in 1953 by Hugh Hefner and his associates, and funded in part by a $1,000 loan from Hefner's mother. Notable for its centerfolds of nude and semi-nudemodels (Playmates), Playboy played an important role in the sexual revolution and remains one of the world's best-known brands, having grown into Playboy Enterprises, Inc., with a presence in nearly every medium. In addition to the flagship magazine in the United States, special nation-specific versions of Playboy are published worldwide.

The magazine has a long history of publishing short stories by notable novelists such as Arthur C. Clarke,Ian Fleming,Vladimir Nabokov,Saul Bellow, Chuck Palahniuk, P. G. Wodehouse,Haruki Murakami, and Margaret Atwood. With a regular display of full-page color cartoons, it became a showcase for notable cartoonists, including Harvey Kurtzman, Jack Cole,Eldon Dedini,Jules Feiffer,Shel Silverstein, Erich Sokol,Roy Raymonde,Gahan Wilson, and Rowland B. Wilson.Playboy features monthly interviews of notable public figures, such as artists, architects, economists, composers, conductors, film directors, journalists, novelists, playwrights, religious figures, politicians, athletes and race car drivers. The magazine generally reflects a liberal editorial stance, although it often interviews conservative celebrities.

Acid

An acid (from the Latin acidus/acēre meaning sour) is a chemical substance whose aqueous solutions are characterized by a sour taste, the ability to turn blue litmus red, and the ability to react with bases and certain metals (like calcium) to form salts. An aqueous solution of an acid has a pH of less than 7 and is colloquially also referred to as 'acid' (as in 'dissolved in acid'), while the strict definition refers only to the solute. An acid usually contains a hydrogen atom bonded to a chemical structure that is still energetically favorable after loss of H⁺ (a positive hydrogen ion or proton). A lower pH means a higher acidity, and thus a higher concentration of positive hydrogen ions in the solution. Chemicals or substances having the property of an acid are said to be acidic.

There are three common definitions for acids: the Arrhenius definition, the Brønsted-Lowry definition, and the Lewis definition. The Arrhenius definition defines acids as substances which increase the concentration of hydrogen ions (H⁺), or more accurately, hydronium ions (H₃O⁺), when dissolved in water. The Brønsted-Lowry definition is an expansion to include solvents other than water: an acid is a substance which can act as a proton donor. By this definition, any compound which can be deprotonated can be considered an acid. Examples include alcohols and amines which contain O-H or N-H fragments. A Lewis acid is a substance that can accept a pair of electrons to form a covalent bond. Examples of Lewis acids include all metal cations, and electron-deficient molecules such as boron trifluoride and aluminium trichloride.

Lab

Lab usually refers to:

Lab or LAB, or variant may also refer to:

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Science and technology

Acid Queen

Acid Queen is Tina Turner's second solo album, released in 1975 on the EMI label in the UK, and on United Artists in the US. Although it is a Tina Turner solo album, the very first single, "Baby Get It On", was a duet with Ike Turner, Tina Turner's musical partner and husband at the time. As it turned out, it was her last solo album to be released before she left Ike Turner and the Ike & Tina Turner Revue.

Overview

Acid Queen takes its title from Tina Turner's role in Ken Russell's film version of The Who's classic rock opera Tommy, which had also featured Elton John, Eric Clapton, Jack Nicholson, Ann-Margret, and starred Roger Daltrey.

Side A of the original vinyl album consists of rock covers. Besides a re-recorded version of the title track, it also contained the Rolling Stones' "Under My Thumb" and "Let's Spend the Night Together", The Who's "I Can See For Miles" and Led Zeppelin's "Whole Lotta Love". Side B was written and produced mainly by Ike and Tina Turner and includes what was to be the last moderately successful R&B single for Ike & Tina Turner, the disco-influenced "Baby Get It On" (US #88, R&B #31). Other single releases include "Whole Lotta Love" (#61 R&B) and "Acid Queen", released in early 1976.

Psilocybin mushroom

Psilocybin mushrooms, also known as psychedelic mushrooms, are mushrooms that contain the psychedelic compounds psilocybin and psilocin. Common colloquial terms include magic mushrooms and 'shrooms. It is used mainly as an entheogen and recreational drug whose effects can include euphoria, altered thinking processes, closed and open-eye visuals, synesthesia, an altered sense of time and spiritual experiences. Biological genera containing psilocybin mushrooms include Copelandia, Galerina, Gymnopilus, Inocybe, Mycena, Panaeolus, Pholiotina, Pluteus, and Psilocybe. Over 100 species are classified in the genus Psilocybe.

Psilocybin mushrooms have likely been used since prehistoric times and may have been depicted in rock art and pre-Columbian historical materials in Mesoamerica. Many cultures have used these mushrooms in their religious rites and ceremonies.

History

Early

Archaeological evidence indicates the use of psilocybin-containing mushrooms since ancient times. Several mesolithic rock paintings from Tassili n'Ajjer (a prehistoric North African site identified with the Capsian culture) have been identified by author John S. Ashley as possibly depicting the shamanic use of mushrooms, possibly Psilocybe.