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.
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:
The (sur)name Ventura (English pronunciation: /vɛnˈtʊrə/, Italian: [venˈtuːra], Portuguese: [vẽˈtuɾɐ], Spanish: [benˈtuɾa]) is Italian, Portuguese and Spanish for "good fortune".
Ventura may refer to:
Ventura is a passenger rail station in downtown Ventura, California. The station is served by Amtrak's Pacific Surfliner from San Luis Obispo to San Diego. Ten Pacific Surfliner trains serve the station daily. Of the 73 California stations served by Amtrak, Ventura was the 33rd-busiest in FY2010, boarding or detraining an average of approximately 125 passengers daily. The single platform is located on the south of the tracks with a view of the Santa Barbara Channel and the Channel Islands. The Ventura Freeway (Hwy 101) is parallel with and on the north side of tracks.
The Metrolink Ventura County Line terminus is in Montalvo at the East Ventura Metrolink Station since commuters traveling towards Los Angeles are better served by that station and overnight storage of trains in the downtown was impractical. Special service trains may come to this station such as service to the Ventura County Fair, in season.
Ventura was a brand of stringed instruments imported from Japan by C. Bruno and Company during the 1960s and 1970s. C. Bruno was bought by Kaman (Ovation) in the early 1980s, after which the brand disappeared. Many of the guitars built during this time frame were known as lawsuit guitars due to the tendency of imported guitars to mimic the well-known American brands such as Martin and Gibson. Some of the Ventura guitars were knock-offs of the Martin line, such as the Ventura V-35 appearing similar to the Martin D-35.
The Ventura line included guitars (classical, western, folk, concert, electric, electro-acoustic), banjos, mandolins, and bass guitars.
Kaman Industries (parent company of Ovation) actually acquired C Bruno & Son in 1971. Although there isn't much in the way of records from this period, it is believed that Kaman contracted with manufacturers such as "Matsumoku" (parent company of brands such as Aria) from '71 until the brand was discontinued in 1982. There is also evidence that C. Bruno contracted with other companies before the '71 Kaman acquisition such as "Kasuga" and others.