The name of which form of transport is derived from Greek words meaning spiral and wing?
"Wing 63. Other helicopters were assigned to the Federal Ministry of Defence's Transport Wing. On 1 October 2010, Helicopter Wing 64 was formed at Holzdorf Air Base, being a new, helicopter-only wing of the German Air Force. It uses a slightly modified form of the original coat of arms of Helicopter Transport Wing 64. The tasks of Helicopter Transport Wing 64 were: At the time of its disbanding Helicopter Transport Wing 64 consisted of the following squadrons Helicopter Transport Wing 64 flew the following aircraft: Helicopter Transport Wing 64 lost a number of aircraft, all of them Bell UH-1D, due"
"Aerodynamics Aerodynamics, from Greek ἀήρ ""aer"" (air) + δυναμική (dynamics), is the study of the motion of air, particularly its interaction with a solid object, such as an airplane wing. It is a sub-field of fluid dynamics and gas dynamics, and many aspects of aerodynamics theory are common to these fields. The term ""aerodynamics"" is often used synonymously with gas dynamics, the difference being that ""gas dynamics"" applies to the study of the motion of all gases, and is not limited to air. The formal study of aerodynamics began in the modern sense in the eighteenth century, although observations of"
"Great-circle navigation Great-circle navigation or orthodromic navigation (related to orthodromic course; from the Greek ""ορθóς"", right angle, and ""δρóμος"", path) is the practice of navigating a vessel (a ship or aircraft) along a great circle. Such routes yield the shortest distance between two points on the globe. The great circle path may be found using spherical trigonometry; this is the spherical version of the ""inverse geodesic problem"". If a navigator begins at ""P"" = (φ,λ) and plans to travel the great circle to a point at point ""P"" = (φ,λ) (see Fig. 1, φ is the latitude, positive northward, and"
"String transport String Transport (also known as ""SkyWay"", ""Yunitskiy String Transport"" and ""Rail Sky Way"") is a concept of an elevated light rail transportation system using prestressed rails with prestressed cables (""strings"") and concrete inside them. It is designed for both freight and passenger services and has two main types of track structure and rolling stock — standard and suspended. The Bank of Lithuania and FSMA have issued scam warnings about the scheme and accused the promoters of not complying with legal requirements when seeking investment. The project was conceived by Belarussian engineer and inventor Anatoly Yunitskiy from the beginning"
"Helicopter A helicopter is a type of rotorcraft in which lift and thrust are supplied by rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward, and laterally. These attributes allow helicopters to be used in congested or isolated areas where fixed-wing aircraft and many forms of VTOL (vertical takeoff and landing) aircraft cannot perform. The English word ""helicopter"" is adapted from the French word , coined by Gustave Ponton d'Amécourt in 1861, which originates from the Greek ""helix"" () ""helix, spiral, whirl, convolution"" and ""pteron"" () ""wing"". English language nicknames for"
"Gyrobus A gyrobus is an electric bus that uses flywheel energy storage, not overhead wires like a trolleybus. The name comes from the Greek language term for flywheel, ""gyros"". While there are no gyrobuses currently in use commercially, development in this area continues. The concept of a flywheel-powered bus was developed and brought to fruition during the 1940s by Oerlikon (of Switzerland), with the intention of creating an alternative to battery-electric buses for quieter, lower-frequency routes, where full overhead-wire electrification could not be justified. Rather than carrying an internal combustion engine or batteries, or connecting to overhead powerlines, a gyrobus"
"Loxodromic navigation Loxodromic navigation (from Greek ""λοξóς"", oblique, and ""δρóμος"", path) is a method of navigation by following a rhumb line, a curve on the surface of the Earth that follows the same angle at the intersection with each meridian. This serves to maintain a steady course in sailing. Navigating on a spherical surface with a fixed course (formula_1 in the figure) results in a spiral path that approaches the North Pole for courses ranging from 270º to 090º and the South Pole for courses from 090º to 270º. On a nautical chart plotted according to the Mercator projection, a"
"Ornithopter An ornithopter (from Greek ""ornithos"" ""bird"" and ""pteron"" ""wing"") is an aircraft that flies by flapping its wings. Designers seek to imitate the flapping-wing flight of birds, bats, and insects. Though machines may differ in form, they are usually built on the same scale as these flying creatures. Manned ornithopters have also been built, and some have been successful. The machines are of two general types: those with engines, and those powered by the muscles of the pilot. Some early manned flight attempts may have been intended to achieve flapping-wing flight, though probably only a glide was actually achieved."
"early 1900s. Since that time, aviation has been technologically revolutionized by the introduction of the jet which permitted a major form of transport throughout the world. The word ""aviation"" was coined by the French writer and former naval officer Gabriel La Landelle in 1863. He derived the term from the verb ""avier"" (an unsuccessful neologism for ""to fly""), itself derived from the Latin word ""avis"" (""bird"") and the suffix ""-ation"". There are early legends of human flight such as the stories of Icarus in Greek myth and Jamshid and Shah Kay Kāvus in Persian myth. Later, somewhat more credible claims"
"it is a plane moving through the air. In an example of synecdoche, the word for the wing came to refer to the entire aircraft. In the United States and Canada, the term ""airplane"" is used for powered fixed-wing aircraft. In the United Kingdom and most of the Commonwealth, the term ""aeroplane"" () is usually applied to these aircraft. Many stories from antiquity involve flight, such as the Greek legend of Icarus and Daedalus, and the Vimana in ancient Indian epics. Around 400 BC in Greece, Archytas was reputed to have designed and built the first artificial, self-propelled flying device,"
"various foils, including hydrofoils. Hydrodynamics is the governing science, rather than aerodynamics. Applications of underwater foils occur in hydroplanes, sailboats and submarines. The word ""wing"" from the Old Norse ""vængr"" for many centuries referred mainly to the foremost limbs of birds (in addition to the architectural aisle). But in recent centuries the word's meaning has extended to include lift producing appendages of insects, bats, pterosaurs, boomerangs, some sail boats and aircraft, or the inverted airfoil on a race car that generates a downward force to increase traction. The design and analysis of the wings of aircraft is one of the"
"Travel Travel is the movement of people between distant geographical locations. Travel can be done by foot, bicycle, automobile, train, boat, bus, airplane, ship or other means, with or without luggage, and can be one way or round trip. Travel can also include relatively short stays between successive movements. The origin of the word ""travel"" is most likely lost to history. The term ""travel"" may originate from the Old French word ""travail"", which means 'work'. According to the Merriam Webster dictionary, the first known use of the word ""travel"" was in the 14th century. It also states that the word"
"Airfoil An airfoil (American English) or aerofoil (British English) is the cross-sectional shape of a wing, blade (of a propeller, rotor, or turbine), or sail (as seen in cross-section). An airfoil-shaped body moved through a fluid produces an aerodynamic force. The component of this force perpendicular to the direction of motion is called lift. The component parallel to the direction of motion is called drag. Subsonic flight airfoils have a characteristic shape with a rounded leading edge, followed by a sharp trailing edge, often with a symmetric curvature of upper and lower surfaces. Foils of similar function designed with water"
"Spiral (railway) A spiral (sometimes called a spiral loop or just loop) is a technique employed by railways to ascend steep hills. A railway spiral rises on a steady curve until it has completed a loop, passing over itself as it gains height, allowing the railway to gain vertical elevation in a relatively short horizontal distance. It is an alternative to a zig-zag, and avoids the need for the trains to stop and reverse direction while ascending. If the train is longer than the length of each loop it may be possible to view it looping above itself. The term"
"Moving walkway A moving walkway or moving sidewalk (American English), also known as an autowalk or as in British English as a skywalk, horizontal escalator, travolator, travelator, or travellator, is a slow-moving conveyor mechanism that transports people across a horizontal or inclined plane over a short to medium distance. Moving walkways can be used by standing or walking on them. They are often installed in pairs, one for each direction. The first moving walkway debuted at the World's Columbian Exposition of 1893, in Chicago, Illinois, in the United States. It had two different divisions: one where passengers were seated, and"
"Aerial tramway An aerial tramway, sky tram, cable car, ropeway or aerial tram is a type of aerial lift which uses one or two stationary ropes for support while a third moving rope provides propulsion. With this form of lift, the grip of an aerial tramway cabin is fixed onto the propulsion rope and cannot be decoupled from it during operations. In comparison to gondola lifts, aerial tramways provide lower line capacities, higher wait times and are unable to turn corners. Because of the proliferation of such systems in the Alpine regions of Europe, the French and German names, ""téléphérique"""
"subdivided into aeronautics, which is the study of vehicles that travel through the air, and astronautics, the study of vehicles that travel through space, and in ballistics, the study of the flight of projectiles. While human beings have been capable of flight via hot air balloons since 1783, other species have used flight for significantly longer. Animals, such as birds, bats, and insects are capable of flight. Spores and seeds from plants use flight, via use of the wind, as a method of propagating their species. Many mythologies have deities especially associated with the sky. In Egyptian religion, the sky"
"Aviation Aviation, or air transport, refers to the activities surrounding mechanical flight and the aircraft industry. ""Aircraft"" includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air craft such as balloons and airships. Aviation began in the 18th century with the development of the hot air balloon, an apparatus capable of atmospheric displacement through buoyancy. Some of the most significant advancements in aviation technology came with the controlled gliding flying of Otto Lilienthal in 1896; then a large step in significance came with the construction of the first powered airplane by the Wright brothers in the"
"loxodromic course appears as a straight line. Loxodromic navigation Loxodromic navigation (from Greek ""λοξóς"", oblique, and ""δρóμος"", path) is a method of navigation by following a rhumb line, a curve on the surface of the Earth that follows the same angle at the intersection with each meridian. This serves to maintain a steady course in sailing. Navigating on a spherical surface with a fixed course (formula_1 in the figure) results in a spiral path that approaches the North Pole for courses ranging from 270º to 090º and the South Pole for courses from 090º to 270º. On a nautical chart"
"rotation made the move far easier to execute than the airtrack – there are very few documented cases of continuous airtracks, however, the earliest documented case of continuous airtracks is of Kujo of Soul Control. The European terms ""airtwist"", ""airtwister"", and ""airtwista"" pre-date the word ""airflare"". Both refer to the same technical move; however, the modern form of the move is better known today as ""airflare"" worldwide. The hyphenated ""air-flare"" and spaced ""air flare"" are occasionally seen, but the term is usually fully compounded to produce ""airflare"", which is consistent with other move names, e.g., ""windmill"" and ""headspin"". Airflares and"
"– translates to ""the ball of Aeolus"", Aeolus being the Greek god of the air and wind. Pre-dating Heron's writings, a device called an aeolipile was described in the 1st century BC by Vitruvius in his treatise ""De architectura""; however, it is unclear if it is the same device or a predecessor, as he does not mention rotating parts. The aeolipile consists of a vessel, usually a ""simple"" solid of revolution, such as a sphere or a cylinder, arranged to rotate on its axis, having oppositely bent or curved nozzles projecting from it (tipjets). When the vessel is pressurized with"
"gondola lift being integrated into urban public transport systems. The following abbreviations are frequently used in the trade and in the industry: An aerial tramway, aerial tram (both U.S. English) or cable car (British English) is a type of aerial lift which uses one or two stationary ropes for support while a third moving rope provides propulsion. The grip of an aerial tramway is fixed onto the propulsion rope and cannot be decoupled. Aerial trams used for urban transport include the Roosevelt Island Tramway (New York) and Portland Aerial Tram. A gondola lift is a type of aerial lift, often"
"'Aquila' is the Latin translation of the word eagle (see ""Aquila""). The words inscribed on the Centurion's safety harness (formerly inside the ship), "" 'Licat volare si super tergum aquila volat""', translates as 'A man can fly where he will, if he rides on the back of an eagle.' This proverb was derived from an ancient Greek story, where one day, the gods decided to elect the noblest bird of all by having them race to the top of Mount Olympus. The eagle appeared to be winning, but the tiny sparrow had been resting on the eagle's back for the"
"Hymenoptera Females typically have a special ovipositor for inserting eggs into hosts or places that are otherwise inaccessible. The ovipositor is often modified into a stinger. The young develop through holometabolism (complete metamorphosis)—that is, they have a worm-like larval stage and an inactive pupal stage before they mature. The name Hymenoptera refers to the wings of the insects, but the original derivation is ambiguous. All references agree that the derivation involves the Ancient Greek πτερόν (""pteron"") for wing. The Ancient Greek ὑμήν (""hymen"") for membrane provides a plausible etymology for the term because species in this order have membranous wings."
"Delta wing The delta wing is a wing shaped in the form of a triangle. It is named for its similarity in shape to the Greek uppercase letter delta (Δ). Although long studied, it did not find significant applications until the jet age, when it proved suitable for high-speed subsonic and supersonic flight. At the other end of the speed scale, the Rogallo flexible wing proved a practical design for the hang glider and other ultralight aircraft. The delta form brings unique structural advantages and aerodynamic characteristics. Many design variations have evolved over the years, with and without additional stabilising"
"plane. This airship that lifted a rider consisted of a cigar-shaped hydrogen balloon that looked like an inverted boat wrapped in netting. It had a velocipede seat and steering bar for a rider. A cloth screw propeller was operated by the rider through a cog wheel and ratchet attachment operated by the rider pedaling. He first called the hybrid invention an ""air bicycle"", that navigated through the air like driving a bicycle. He later named it a ""gas kite"", an ""aerial velocipede"", an ""aerial bicycle"", and ultimately a ""sky-cycle."" The propeller acted like a screw of a boat and propelled"
"For endeavors related to the Entomopter, Prof. Michelson is the recipient of the ""2001 Pirelli Award for the diffusion of scientific culture"" given by an international Jury for the “best multimedia project coming from any educational institution in the world.” He was also awarded the first ""Top Pirelli Prize"" (€25,000) for the work deemed best from an international field of over 1000 considered. Entomopter An Entomopter is an aircraft that flies using the wing-flapping aerodynamics of an insect. The word is derived from ""entomo"" (meaning insect: as in entomology) + ""pteron"" (meaning wing). Entomopters are type of ornithopter, which is"
"M200G Volantor uses a system of eight computer-controlled ducted fans to hover up to above the ground. Volantor is a term coined by Moller meaning ""a vertical takeoff and landing aircraft."" A disc wing is a circular wing that spins. It is mostly used for flying disc toys. Circular wing A circular wing is a disc-shaped wing having the outer planform of a circle. If the aircraft has no fuselage or tail the disc-shaped craft is sometimes described as a ""flying saucer"". If the entire disc rotates it is called a ""disc wing"". Disc-shaped aircraft development dates back to before"
"superseded by the Mombasa–Nairobi Standard Gauge Railway, which has removed the need for spirals by constructing tunnels and bridges. (Tуапсе) through Gornyy to Belorechensk (Белореченск). Spiral (railway) A spiral (sometimes called a spiral loop or just loop) is a technique employed by railways to ascend steep hills. A railway spiral rises on a steady curve until it has completed a loop, passing over itself as it gains height, allowing the railway to gain vertical elevation in a relatively short horizontal distance. It is an alternative to a zig-zag, and avoids the need for the trains to stop and reverse direction"
"a variation of ""aviation"", from the Latin ""avis"" (meaning ""bird""), coined in 1863 by G. de la Landelle in ""Aviation Ou Navigation Aérienne"" (""Aviation or Air Navigation""). The term ""aviatrix"" (""aviatrice"" in French), now archaic, was formerly used for a female aviator. These terms were used more in the early days of aviation, when airplanes were extremely rare, and connoted bravery and adventure. For example, a 1905 reference work described the Wright brothers' first airplane: ""The weight, including the body of the aviator, is a little more than 700 pounds"". To ensure the safety of people in the air and"
"Italian word created by compounding ""cava"" and "" tappi"", which literally means ""stopper (or top or cap) extractor"" (a corkscrew). It is known by many other names. Cavatappi originated in Southern Italy. The cavatappi shape is perhaps best described as a ridged tube extruded into a helix shape though a small number of rotations. The number of turns is commonly in the range of one to three (with fewer than one full turn, the shape degenerates into a twisted version of elbow macaroni). While the word ""spiral"" is often used colloquially to describe helical objects (such as a spiral staircase),"
"Winged unicorn A winged unicorn (or flying unicorn) is a fictional horse with wings like Pegasus and the horn of a unicorn. This creature has no specific name, but in some literature and media, it has been referred to as an alicorn, a Latin word for the horn of a unicorn, especially in alchemical texts, or as a pegacorn, a portmanteau of pegasus and unicorn. Winged unicorns have been depicted in art. Ancient Achaemenid Assyrian seals depict winged unicorns and winged bulls as representing evil, but winged unicorns can also represent light. Irish poet W. B. Yeats wrote of imagining"
"aerodynamic performance, showing that the higher the frequency of the wing beat, the higher the average thrust of the ornithopter. Ornithopter An ornithopter (from Greek ""ornithos"" ""bird"" and ""pteron"" ""wing"") is an aircraft that flies by flapping its wings. Designers seek to imitate the flapping-wing flight of birds, bats, and insects. Though machines may differ in form, they are usually built on the same scale as these flying creatures. Manned ornithopters have also been built, and some have been successful. The machines are of two general types: those with engines, and those powered by the muscles of the pilot. Some"