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Dunne's theory offered a scientific explanation for ideas of consciousness being explored widely at the time. It became well known and was discussed by philosophers such as J. A. Gunn , C. D. Broad and M. F. Cleugh , and by the parapsychologist G. N. M. Tyrrell .
Forces of flight on a powered aircraft in unaccelerated level flight. Understanding the motion of air around an object (often called a flow field) enables the calculation of forces and moments acting on the object. In many aerodynamics problems, the forces of interest are the fundamental forces of flight: lift, drag, thrust, and weight. Of ...
Kutta–Joukowski theorem is an inviscid theory, but it is a good approximation for real viscous flow in typical aerodynamic applications. [2] Kutta–Joukowski theorem relates lift to circulation much like the Magnus effect relates side force (called Magnus force) to rotation. [3] However, the circulation here is not induced by rotation of the ...
Artist rendition of a spaceship entering warp drive. Generic terms for engines enabling science fiction spacecraft propulsion include "space drive" and "star drive". [g] [2]: 198, 216 In 1977 The Visual Encyclopedia of Science Fiction listed the following means of space travel: anti-gravity, [h] atomic (nuclear), bloater, [i] cannon one-shot, [j] Dean drive, [k] faster-than-light (FTL ...
Although the modern theory of aerodynamic science did not emerge until the 18th century, its foundations began to emerge in ancient times. The fundamental aerodynamics continuity assumption has its origins in Aristotle's Treatise on the Heavens, although Archimedes, working in the 3rd century BC, was the first person to formally assert that a fluid could be treated as a continuum. [1]
The first documented use of speed to fly theory was by Wolfgang Späte, who used a table of speeds to fly for different climb rates to help him win the 1938 Rhön competition flying a DFS Reiher. [ 3 ] [ 4 ] Späte is thought to have used a simplified form of the general theory that did not account for sinking air between thermals. [ 5 ]
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Flights of Fancy talks about almost every aspect of flying–all the different ways of defying gravity–in imagination and in technology, in humans and in animals. It ranges over many instances of flight including the Wright brothers, Greek mythology, extinct and living birds, helicopters, insects, bats, and flying squirrels.
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