Free fall

In Newtonian physics, free fall is any motion of a body where gravity is the only force acting upon it. In the context of general relativity, where gravitation is reduced to a space-time curvature, a body in free fall has no force acting on it and moves along a geodesic. The present article only concerns itself with free fall in the Newtonian domain.

An object in the technical sense of free fall may not necessarily be falling down in the usual sense of the term. An object moving upwards would not normally be considered to be falling, but if it is subject to the force of gravity only, it is said to be in free fall. The moon is thus in free fall.

In a uniform gravitational field, in the absence of any other forces, gravitation acts on each part of the body equally and this is weightlessness, a condition that also occurs when the gravitational field is zero (such as when far away from any gravitating body). A body in free fall experiences "0 g".

The term "free fall" is often used more loosely than in the strict sense defined above. Thus, falling through an atmosphere without a deployed parachute, or lifting device, is also often referred to as free fall. The aerodynamic drag forces in such situations prevent them from producing full weightlessness, and thus a skydiver's "free fall" after reaching terminal velocity produces the sensation of the body's weight being supported on a cushion of air.

Charles "Nish" Bruce

Sergeant Charles Christian Cameron "Nish" Bruce QGM (8 August 1956 – 8 January 2002) was a former British Army soldier and freefall expert of high altitude military parachuting who served in 22 (SAS) Special Air Service (1982–88). He served with the 22 SAS in the Falklands War, on anti-drug operations in South and Central America and in Northern Ireland during Operation Banner for which he was awarded the Queen's Gallantry Medal in 1986.

He received the South Atlantic Medal in 1982 with B Squadron of the 22 Special Air Service and the General Service Medal with the 2nd Battalion, Parachute Regiment for services in Northern Ireland during The Troubles.

Family & Early Life

Bruce was born in Chipping Norton in 1956, middle son of Ewen Anthony Guy Cameron Bruce. He was the paternal grandson of Major Ewen Cameron Bruce (of Blaen-y-cwm).

Military career

Bruce joined the Parachute Regiment in 1973 at age 17 and in 1978 spent 4 years with The Red Devils Display Team participating in test jumping, international exhibitions and competitions before passing SAS selection and joining 22 SAS in April 1982.

Free fall (disambiguation)

Free fall is the ability to achieve the sensation of weightlessness (for example to be falling freely in an atmosphere, or to be in zero-g). In skydiving, the term freefall is also used for the portion of the skydive prior to the deployment of a parachute, even though significant portions of it are at terminal velocity rather than freely accelerating in gravity.

Free fall, Free-fall or Freefall may also refer to:

Books & comics

Dada

Dada (/ˈdɑːdɑː/) or Dadaism was an art movement of the European avant-garde in the early 20th century. Dada in Zürich, Switzerland, began in 1916 at Cabaret Voltaire, spreading to Berlin shortly thereafter, but the height of New York Dada was the year before, in 1915. The term anti-art, a precursor to Dada, was coined by Marcel Duchamp around 1913 when he created his first readymades. Dada, in addition to being anti-war, had political affinities with the radical left and was also anti-bourgeois.

At least two works qualified as pre-Dadaist, a posteriori, had already sensitized the public and artists alike: Ubu Roi (1896) by Alfred Jarry, and the ballet Parade (1916–17) by Erik Satie. The roots of Dada lay in pre-war avant-garde. Cubism and the development of collage, combined with Wassily Kandinsky’s theoretical writings and abstraction, detached the movement from the constraints of reality and convention. The influence of French poets and the writings of German Expressionists liberated Dada from the tight correlation between words and meaning. Avant-garde circles outside France knew of pre-war Parisian developments. They had seen (or participated in) Cubist exhibitions held at Galería Dalmau, Barcelona (1912), Galerie Der Sturm in Berlin (1912), the Armory show in New York (1913), SVU Mánes in Prague (1914), several Jack of Diamonds exhibitions in Moscow and at De Moderne Kunstkring, Amsterdam (between 1911 and 1915). Futurism developed in response to the work of various artists. Dada subsequently combined these approaches.

Dada (band)

Dada is a three piece rock band from California (United States). The band is made up of Michael Gurley (guitar/co-lead vocals), Joie Calio (bass/co-lead vocals) and Phil Leavitt (drums).

The band's songs feature both Michael and Joie sharing the vocals on each song. The group write highly melodic, harmony laden tunes, and their constant touring with two and a half to three hour performances has won them a wide fanbase.

History

1992 saw the release of their debut album Puzzle. First single "Dizz Knee Land" quickly became a staple of radio across the U.S. and reached as far as Australia, where the song and album went on high rotation on national radio station 'Triple J'. "Dizz Knee Land" reached number 2 on the Billboard Heatseekers chart, number 5 on the Billboard Modern Rock chart and number 27 on the Billboard Mainstream Rock Chart;Puzzle went on to sell more than half a million copies and earned an RIAA Gold Record award. dada toured for the album with bands such as Crowded House and Izzy Stradlin & the Ju Ju Hounds, as well as Sting.

Dada (2005 film)

Dada is an action Bengali film made in 2005. A revenge tale, with Mithun Chakraborty in the lead role. It is a remake of the 2002 Hit Telugu film Indra.

Cast

Songs

References