Wingsuit flyingWingsuit flying, also called wingsuiting, is flight in free fall using a specialized suit with fabric wings between the arms and torso and between the legs. The added surface area reduces vertical speed and increases horizontal speed, producing a controllable glide while restricting part of the jumper's normal range of motion. A wingsuit flight may begin from an aircraft or from a fixed BASE object and normally ends with parachute deployment.
ParachuteA parachute is a device designed to slow an object's descent through an atmosphere by creating drag or aerodynamic lift. It is primarily used to safely support people exiting aircraft at height, but also serves various purposes like slowing cargo, aiding in space capsule recovery on Earth, landing spacecraft on other planets, and stabilizing vehicles or objects.
ParachutingParachuting is the descent of a person through the atmosphere using a parachute. In sport parachuting, a jumper normally exits an aircraft, passes through a period of free fall, deploys a steerable canopy, flies it to a landing area and lands. Skydiving is commonly used as a synonym for sport parachuting, although it can more narrowly refer to controlling the body during freefall before the canopy is deployed.
CliffIn geography and geology, a cliff or bluff or rock face is an area of rock which has a general angle defined by the vertical, or nearly vertical. Cliffs are formed by the processes of weathering and erosion, with the effect of gravity. Cliffs are common on coasts, in mountainous areas, escarpments and along rivers. Cliffs are usually composed of rock that is resistant to weathering and erosion.
Free fallIn classical mechanics, free fall is any motion of a body where gravity is the only force acting upon it. A freely falling object may not necessarily be falling down in the vertical direction. If the common definition of the word "fall" is used, an object moving upwards is not considered to be falling, but using scientific definitions, if it is subject to only the force of gravity, it is said to be in free fall.
BridgeA bridge is a structure designed to span an obstacle, such as a river or railway, allowing vehicles, pedestrians, and other loads to pass across. Most bridges consist of a flat deck, supported by beams, arches, or cables. These structures rest on a foundation that is carefully designed to transfer the weight of the bridge to the subsoil without settling.
BuildingA building or edifice is an enclosed structure with a roof, walls and often windows, usually standing permanently in one place, such as a house or factory. Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history in response to numerous factors, from available building materials to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons.
Span (engineering)In engineering, span is the distance between two adjacent structural supports (e.g., two piers) of a structural member (e.g., a beam). Span is measured in the horizontal direction either between the faces of the supports (clear span) or between the centers of the bearing surfaces (effective span). For a bridge, the total span is the distance between the faces of the abutments: A span can be closed by a solid beam or by a rope.
Antenna (radio)In radio-frequency engineering, an antenna (American English) or aerial (British English) is a structure used to convert alternating electric currents into radio waves for transmission, and to convert radio waves back into electric currents for reception. It is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter or receiver.
AcronymAbbreviation consisting of initial letters of a phraseNASA is an acronym that expands to National Aeronautics and Space Administration.An acronym is an abbreviation formed using the initial letters of a multi-word name or phrase. Acronyms are often spelled with the initial letter of each word in all caps with no punctuation. In English, the word is used in two ways.Radio masts and towersRadio masts and towers are typically tall structures designed to support antennas for telecommunications and broadcasting, including television. There are two main types: guyed and self-supporting structures. They are among the tallest human-made structures. Masts are often named after the broadcasting organizations that originally built them or currently use them.*As an Amazon Associate I earn from qualifying purchases.