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BASE jumping is the recreational sport of jumping from fixed objects, using a parachute to descend safely to the ground. "BASE" is an acronym that stands for four categories of fixed objects from which one can jump: buildings, antennae, spans (bridges), and earth (cliffs). Participants exit from a fixed object such as a cliff, and after an optional freefall delay, deploy a parachute to slow their descent and land. A popular form of BASE jumping is wingsuit BASE jumping.
A wing is a type of fin that produces lift while moving through air or some other fluid. Accordingly, wings have streamlined cross-sections that are subject to aerodynamic forces and act as airfoils. A wing's aerodynamic efficiency is expressed as its lift-to-drag ratio. The lift a wing generates at a given speed and angle of attack can be one to two orders of magnitude greater than the total drag on the wing. A high lift-to-drag ratio requires a significantly smaller thrust to propel the wings through the air at sufficient lift.
A parachute is a device used to slow the motion of an object through an atmosphere by creating drag or, in a ram-air parachute, aerodynamic lift. A major application is to support people, for recreation or as a safety device for aviators, who can exit from an aircraft at height and descend safely to earth.
In fluid dynamics, a stall is a reduction in the lift coefficient generated by a foil as angle of attack increases. This occurs when the critical angle of attack of the foil is exceeded. The critical angle of attack is typically about 15°, but it may vary significantly depending on the fluid, foil, and Reynolds number.
The MGM-140 Army Tactical Missile System (ATACMS) is a tactical ballistic missile manufactured by the US defense company Lockheed Martin. It has a range of up to 190 miles (300 km), with solid propellant, and is 13 feet (4.0 m) high and 24 inches (610 mm) in diameter. The ATACMS can be fired from the tracked M270 Multiple Launch Rocket System (MLRS), and the wheeled M142 High Mobility Artillery Rocket System (HIMARS).
Flight or flying is the process by which an object moves through a space without contacting any planetary surface, either within an atmosphere or through the vacuum of outer space. This can be achieved by generating aerodynamic lift associated with gliding or propulsive thrust, aerostatically using buoyancy, or by ballistic movement.
According to the International Civil Aviation Organization (ICAO), a runway is a "defined rectangular area on a land aerodrome prepared for the landing and takeoff of aircraft". Runways may be a human-made surface or a natural surface. Runways, taxiways and ramps, are sometimes referred to as "tarmac", though very few runways are built using tarmac. Takeoff and landing areas defined on the surface of water for seaplanes are generally referred to as waterways. Runway lengths are now commonly given in meters worldwide, except in North America where feet are commonly used.
Pantyhose, sometimes also called sheer tights, are close-fitting legwear covering the wearer's body from the waist to the toes. Pantyhose first appeared on store shelves in 1959 for the advertisement of new design panties as a convenient alternative to stockings and/or control panties which, in turn, replaced girdles.
The Rogallo wing is a flexible type of wing. In 1948, Francis Rogallo, a NASA engineer, and his wife Gertrude Rogallo, invented a self-inflating flexible wing they called the Parawing, also known after them as the "Rogallo Wing" and flexible wing. NASA considered Rogallo's flexible wing as an alternative recovery system for the Mercury and Gemini space capsules, and for possible use in other spacecraft landings, but the idea was dropped from Gemini in 1964 in favor of conventional parachutes.
Parachutes is the debut studio album by British rock band Coldplay. It was released on 10 July 2000 by Parlophone in the United Kingdom. The album was produced by the band and British record producer Ken Nelson, except for one track, "High Speed", which was produced by Chris Allison. Parachutes spawned the singles "Shiver", "Yellow", "Trouble", and "Don't Panic". The album was also supported by the Parachutes Tour, which saw the band performing 130 shows in their first world tour.
Powered paragliding, also known as paramotoring or PPG, is a form of ultralight aviation where the pilot wears a back-pack motor which provides enough thrust to take off using a paraglider. It can be launched in still air, and on level ground, by the pilot alone—no assistance is required.
The Parachutist Badge, also commonly referred to as "Jump Wings" is a military badge of the United States Armed Forces. Some services, such as the Marine Corps, officially refer to it as an insignia instead of a badge. The United States Space Force and United States Coast Guard are the only branches that do not award the Parachutist Badge, but their members are authorized to receive the Parachutist Badges of other services in accordance with their prescribed requirements. The DoD military services are all awarded the same Military Parachutist Badge. The U.S. Army and U.S. Air Force issue the same Senior and Master Parachutist Badges while the U.S. Navy and U.S. Marine Corps issue the Navy and Marine Corps Parachutist Insignia to advanced parachutists. The majority of the services earn their Military Parachutist Badge through the U.S. Army Airborne School.
A high-yield investment program (HYIP) is a type of Ponzi scheme, an investment scam that promises unsustainably high return on investment by paying previous investors with the money invested by new investors.
Leslie Leroy Irvin was a stunt-man for the fledgling Californian film industry. Flying in balloons, he performed using trapeze acrobatics and parachute descents. For the 1914 film Sky High, Irvin made his first jump out of an airplane while flying at 1,000 feet above the ground. In 1918, he developed his own life-saving static line parachute, jumping with it several times and promoting it to the US Army. Irvin joined the Army Air Service's parachute research team at McCook Field near Dayton, Ohio where he made the first premeditated free-fall jump with the modern parachute on April 28, 1919.
Amazon Elastic Compute Cloud (EC2) is a part of Amazon.com's cloud-computing platform, Amazon Web Services (AWS), that allows users to rent virtual computers on which to run their own computer applications. EC2 encourages scalable deployment of applications by providing a web service through which a user can boot an Amazon Machine Image (AMI) to configure a virtual machine, which Amazon calls an "instance", containing any software desired. A user can create, launch, and terminate server-instances as needed, paying by the second for active servers – hence the term "elastic". EC2 provides users with control over the geographical location of instances that allows for latency optimization and high levels of redundancy. In November 2010, Amazon switched its own retail website platform to EC2 and AWS.
George Galloway is a British politician, broadcaster, and writer who is currently leader of the Workers Party of Britain, serving since 2019. Between 1987 and 2010, and then between 2012 and 2015, Galloway was a Member of Parliament (MP) for four constituencies, first for the Labour Party and later for the Respect Party, the latter of which he joined in 2004 and led from 2013 until its dissolution in 2016.
Parachuting and skydiving is a method of transiting from a high point in an atmosphere to the ground or ocean surface with the aid of gravity, involving the control of speed during the descent using a parachute or parachutes.
Parachute is an American pop rock band from Charlottesville, Virginia, United States. Formed in 2006, they released their major-label debut album, Losing Sleep, in 2009, followed by their second album, The Way It Was, in 2011 and their third album, Overnight, in 2013. Vanguard Records released the band's fourth album, Wide Awake, on March 11, 2016. The band independently released their fifth album, Parachute, in May 2019.
Raven Industries, Inc. is an American company that makes precision agriculture products and information management tools for growers. Before a series of acquisitions in 2021, it also had an Engineered Films segment that produced plastic films for various agricultural and industrial applications, as well as an Aerostar segment that designed and manufactured high-altitude balloons, tethered aerostats, and radar systems, and sold military parachutes, uniforms, and protective wear. The company was founded in 1956 and headquartered in Sioux Falls, South Dakota. Its stock was traded on Nasdaq until 2021 when it was acquired by CNH Industrial.
References
- 1 2 Galloway, George. "The Precision Pack". Precision Aerodynamics. Archived from the original on March 23, 2012. Retrieved May 8, 2011.
- 1 2 3 "Precision Aerodynamics". Precision Aerodynamics, Inc. Archived from the original on March 23, 2012. Retrieved May 9, 2011.
- ↑ "The Super Raven Reserve". Precision Aerodynamics. Archived from the original on January 31, 2013. Retrieved May 9, 2011.
- ↑ "Parachute maker develops high-rise survivor model". USA Today. April 14, 2003. Retrieved May 10, 2011.
- ↑ Chattanooga Times Free Press. February 17, 1992.
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