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.
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.
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).
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.
The second season of The Unit originally broadcast between September 19, 2006 and May 8, 2007, it introduces several new characters to the series. Tiffy has trouble with the law when she covers for Colonel Ryan's wife, Charlotte, and The Unit is investigated by the CIA over infractions that could result in criminal charges.
Dasà (Greek: Dasia) is a comune (municipality) in the Province of Vibo Valentia in the Italian region Calabria, located about 50 kilometres (31 mi) southwest of Catanzaro and about 15 kilometres (9 mi) southeast of Vibo Valentia. As of 31 December 2004, it had a population of 1,316 and an area of 6.19 square kilometres (2.39 sq mi).
Dasà borders the following municipalities: Acquaro, Arena, Dinami, Gerocarne.
Dus (Hindi: दस, translation: Ten) is a 2005 Bollywood action spy thriller film based on the Indian Special Investigation Team (SIT) Officers. The film is directed by Anubhav Sinha and produced by Nitin Manmohan. It stars Sanjay Dutt, Sunil Shetty, Abhishek Bachchan, Shilpa Shetty, Zayed Khan and Esha Deol in lead roles. The film is a tribute to celebrated director Mukul S. Anand, who had died while filming the 1997 incomplete film of the same name, and which had also starred Sanjay Dutt in the lead role. The film was commercial and critical success at the Indian Box Office.
The film follows the head of the ATC, played by Dutt, and his team, as they embark on a mission to prevent a deadly terrorist attack orchestrated by an international terrorist and criminal, Jamwaal with only 7 days to do so. The incident was to take place on 10 May, thus explaining the name of the film.
In the opening scene, Siddhant Dheer (Sanjay Dutt), the head of the Anti-Terrorist Cell (a fictitious organisation), narrates how rampant terrorism has become in the world and goes on to tell the story of 7 of the hardest days in his life.
DAS (ダスッ!, Dasu!) is a Japanese adult video (AV) production company located in Tokyo, Japan.
DAS is part of Japan's largest group of AV companies, the Hokuto Corporation, located in Ebisu, Tokyo. DAS specializes in simulated rape, bukkake, nakadashi (creampie) and humiliation videos using well-known actresses. The company was founded in 2007 and released its first four videos on April 25, 2007. These videos starred Maria Ozawa, Rin Suzuka, Reina Matsushima and Rin Aoki, four actresses who moved to the new company from another Hokuto Corporation company, S1 No. 1 Style.
DAS releases a total of about four original and compilation videos per month. The studio uses product codes beginning with "DASD" for their original videos and "DAZD" for compilation works. As of April 2014, the latest videos were DASD-250 and DAZD-057. The DMM website, the distribution arm for companies in the Hokuto Corporation, listed more than 200 DVDs under the DAS studio name in September 2011. The company also releases videos in the Blu-ray format. In March 2010 DAS announced the debut of a new label "Platinum" (プラチナ, Purachina).