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Otto Lilienthal
Karl Wilhelm Otto Lilienthal (23 May 1848 – 10 August 1896) was a German pioneer of aviation who became known as the "flying man". He was the first person to make well-documented, repeated, successful flights with gliders, therefore making the idea of "heavier than air" a reality. Newspapers and magazines published photographs of Lilienthal gliding, favourably influencing public and scientific opinion about the possibility of flying machines becoming practical. Lilienthal's work led to him developing the concept of the modern wing. His flight attempts in 1891 are seen as the beginning of human flight and the "Lilienthal Normalsegelapparat" is considered to be the first airplane in series production, making the ''Maschinenfabrik Otto Lilienthal'' the first air plane production company in the world. Otto Lilienthal is often referred to as either the "father of aviation" or "father of flight". On 9 August 1896, his glider stalled and he was unable to regain control. Falling f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anklam
Anklam [], formerly known as Tanglim and Wendenburg, is a town in the Western Pomerania region of Mecklenburg-Vorpommern, Germany. It is situated on the banks of the Peene river, just 8 km from its mouth in the ''Kleines Haff'', the western part of the Stettin Lagoon. Anklam has a population of 12,177 (2021) and was the capital of the former Ostvorpommern district. Since September 2011, it has been part of the district of Vorpommern-Greifswald. History In the early Middle Ages, there was an important Scandinavian and Wendish settlement in the area near the present town now known as Altes Lager Menzlin. Anklam proper began as an associated Wendish fortress. In the Middle Ages the town was a part of the Duchy of Pomerania. During the German expansion eastwards, the abandoned fortress was developed into a settlement named Tanglim after its new founder. The site possesses importance as the head of navigation on the Peene. It was elevated to town status in 1244 and became a m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tenor
A tenor is a type of classical music, classical male singing human voice, voice whose vocal range lies between the countertenor and baritone voice types. It is the highest male chest voice type. The tenor's vocal range extends up to C5. The low extreme for tenors is widely defined to be B2, though some roles include an A2 (two As below middle C). At the highest extreme, some tenors can sing up to the second F above middle C (F5). The tenor voice type is generally divided into the ''leggero'' tenor, lyric tenor, spinto tenor, dramatic tenor, heldentenor, and tenor buffo or . History The name "tenor" derives from the Latin word ''wikt:teneo#Latin, tenere'', which means "to hold". As Fallows, Jander, Forbes, Steane, Harris and Waldman note in the "Tenor" article at ''Grove Music Online'': In polyphony between about 1250 and 1500, the [tenor was the] structurally fundamental (or 'holding') voice, vocal or instrumental; by the 15th century it came to signify the male voice that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lilienthal Hang Glider , and others
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Lilienthal may refer to: * Lilienthal (surname) * Lilienthal, Lower Saxony, a village in Germany * Lilienthal, the former German name of Białczyn, a village in Poland * Lilienthal Glacier, Graham Land, Antarctica * Lilienthal Island, Antarctica * 13610 Lilienthal, an asteroid * Lilienthal Berlin, a German brand of watches * Berlin Tegel Airport, also called Otto Lilienthal Airport See also * Liliental, a 1978 music group featuring Asmus Tietchens, Conny Plank, Dieter Moebius Dieter Moebius (16 January 1944 – 20 July 2015) was a Swiss-born German electronic musician and composer, best known as a member of the influential krautrock bands Cluster and Harmonia. Moebius was studying art at Berlin's Akademie Grafik and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerodynamics
Aerodynamics, from grc, ἀήρ ''aero'' (air) + grc, δυναμική (dynamics), is the study of the motion of air, particularly when affected by a solid object, such as an airplane wing. It involves topics covered in the field of fluid dynamics and its subfield of gas dynamics. 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 fundamental concepts such as aerodynamic drag were recorded much earlier. Most of the early efforts in aerodynamics were directed toward achieving Aircraft#Heavier than air – aerodynes, heavier-than-air flight, which was first demonstrated by Otto Lilienthal in 1891. Since then, the use of aerodynamics through mathematical analysis, empirical approximations, wind tunnel experimentation, and computer simu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polar Curve (aviation)
The drag curve or drag polar is the relationship between the drag on an aircraft and other variables, such as lift, the coefficient of lift, angle-of-attack or speed. It may be described by an equation or displayed as a graph (sometimes called a "polar plot"). Drag may be expressed as actual drag or the coefficient of drag. Drag curves are closely related to other curves which do not show drag, such as the power required/speed curve, or the sink rate/speed curve. The drag curve The significant aerodynamic properties of aircraft wings are summarised by two dimensionless quantities, the lift and drag coefficients and . Like other such aerodynamic quantities, they are functions only of the angle of attack , the Reynolds number and the Mach number . and can be plotted against , or can be plotted against each other. The lift and the drag forces, and , are scaled by the same factor to get and , so = . and are at right angles, with parallel to the free stream velocit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stork
Storks are large, long-legged, long-necked wading birds with long, stout bills. They belong to the family called Ciconiidae, and make up the order Ciconiiformes . Ciconiiformes previously included a number of other families, such as herons and ibises, but those families have been moved to other orders. Storks dwell in many regions and tend to live in drier habitats than the closely related herons, spoonbills and ibises; they also lack the powder down that those groups use to clean off fish slime. Bill-clattering is an important mode of communication at the nest. Many species are migratory. Most storks eat frogs, fish, insects, earthworms, small birds and small mammals. There are 19 living species of storks in six genera. Various terms are used to refer to groups of storks, two frequently used ones being a ''muster'' of storks and a ''phalanx'' of storks. Storks tend to use soaring, gliding flight, which conserves energy. Soaring requires thermal air currents. Ottomar Ans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Updraft
In meteorology, an updraft is a small-scale current of rising air, often within a cloud. Overview Localized regions of warm or cool air will exhibit vertical movement. A mass of warm air will typically be less dense than the surrounding region, and so will rise until it reaches air that is either warmer or less dense than itself. The converse will occur for a mass of cool air, and is known as subsidence. This movement of large volumes of air, especially when regions of hot, wet air rise, can create large clouds, and is the central source of thunderstorms. Drafts can also be conceived by low or high pressure regions. A low pressure region will attract air from the surrounding area, which will move towards the center and then rise, creating an updraft. A high pressure region will attract air from the surrounding area, which will move towards the center and sink, spawning a downdraft. Updrafts and downdrafts, along with wind shear in general, are a major contributor to airplane cras ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otto Lilienthal Gliding Experiment Ppmsca
Otto is a masculine German given name and a surname. It originates as an Old High German short form (variants ''Audo'', ''Odo'', ''Udo'') of Germanic names beginning in ''aud-'', an element meaning "wealth, prosperity". The name is recorded from the 7th century ( Odo, son of Uro, courtier of Sigebert III). It was the name of three 10th-century German kings, the first of whom was Otto I the Great, the first Holy Roman Emperor, founder of the Ottonian dynasty. The Gothic form of the prefix was ''auda-'' (as in e.g. '' Audaþius''), the Anglo-Saxon form was ''ead-'' (as in e.g. ''Eadmund''), and the Old Norse form was '' auð-''. The given name Otis arose from an English surname, which was in turn derived from ''Ode'', a variant form of ''Odo, Otto''. Due to Otto von Bismarck, the given name ''Otto'' was strongly associated with the German Empire in the later 19th century. It was comparatively frequently given in the United States (presumably in German American families) during t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Derwitzer Glider
The Derwitzer Glider was a glider that was developed by Otto Lilienthal, so named because it was tested near Derwitz in Brandenburg Brandenburg (; nds, Brannenborg; dsb, Bramborska ) is a states of Germany, state in the northeast of Germany bordering the states of Mecklenburg-Vorpommern, Lower Saxony, Saxony-Anhalt, and Saxony, as well as the country of Poland. With an ar .... When flown in 1891, it became a very early successful design able to carry a person and the one of the first successful manned aircraft in the world. He made flights of up to 25 metres (80 feet) in it. __NOTOC__ Specifications References Otto Lilienthal Museum website {{Lilienthal aircraft 19th-century German experimental aircraft Lilienthal aircraft Glider aircraft Aircraft first flown in 1891 1891 in Germany 1891 in science Monoplanes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultralight Trike
An ultralight trike is a type of powered hang glider where flight control is by weight-shift. These aircraft have a fabric flex-wing from which is suspended a tricycle fuselage pod driven by a pusher propeller. The pod accommodates either a solo pilot, or a pilot and a single passenger. Trikes grant affordable, accessible, and exciting flying, and have been popular since the 1980s. Trikes are classified as microlights in Europe, and as light-sport aircraft in the United States. The aircraft are also known by other names, including 2-axis microlights, flex-wing trikes, microlight trikes, deltatrikes or motorized deltaplanes. In the United States, they are formally recognized by the Federal Aviation Administration (FAA) as weight-shift-control aircraft. History ] The history of the trike is traced back to the invention of Francis Rogallo's flexible wing and subsequent development by the Paresev engineering team's innovations and then others. On 1948, engineer Francis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hang Gliders
Hang gliding is an air sport or recreational activity in which a pilot flies a light, non-motorised foot-launched heavier-than-air aircraft called a hang glider. Most modern hang gliders are made of an aluminium alloy or composite frame covered with synthetic sailcloth to form a wing. Typically the pilot is in a harness suspended from the airframe, and controls the aircraft by shifting body weight in opposition to a control frame. Early hang gliders had a low lift-to-drag ratio, so pilots were restricted to gliding down small hills. By the 1980s this ratio significantly improved, and since then pilots have been able to soar for hours, gain thousands of feet of altitude in thermal updrafts, perform aerobatics, and glide cross-country for hundreds of kilometers. The Federation Aeronautique Internationale and national airspace governing organisations control some regulatory aspects of hang gliding. Obtaining the safety benefits of being instructed is highly recommended and indeed a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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