Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Boomerangs Aerodynamics And Motion
Download Boomerangs Aerodynamics And Motion full books in PDF, epub, and Kindle. Read online Boomerangs Aerodynamics And Motion ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Boomerangs, Aerodynamics and Motion by : Felix Hess
Download or read book Boomerangs, Aerodynamics and Motion written by Felix Hess and published by . This book was released on 1975 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published version of Ph.D. Thesis - University of Groningen; the work is divided into three parts; the first deals with ethnographic evidence and a general discussion of the physical properties of boomerangs; the second part with the aerodynamics of boomerangs by mathematical and experimental investigation; the third part with the theoretical basis of motion involved in the movement of boomerangs; in the first part the section dealing with ethnographic evidence includes a discussion of types of Australian boomerangs, the distribution, the morphology and manufacture, the throwing of boomerangs and the function of the objects in the past and today; three further sections discuss the use of boomerangs outside Australia and this is concluded with a brief discussion of the origin of boomerangs; an extensive bibliography on boomerangs ends this section; the other two theoretical sections also contain bibliographies.
Book Synopsis Spinning Flight by : Ralph D. Lorenz
Download or read book Spinning Flight written by Ralph D. Lorenz and published by Springer Science & Business Media. This book was released on 2007-02-02 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: More frisbees are sold each year than baseballs, basketballs and footballs combined. Yet these familiar flying objects have subtle and clever aerodynamic and gyrodynamic properties which are only recently being documented by wind tunnel and other studies. In common with other rotating bodies discussed in this readily accessible book, they are typically not treated in textbooks of aeronautics and the literature is scattered in a variety of places. This book develops the theme of disc-wings and spinning aerospace vehicles in parallel. Since many of the examples are recreational, anyone who enjoys these activities will likely find it profitable and enjoyable. In addition to spinning objects of various shapes, several exotic manned aircraft with disc planforms have been proposed and a prototypes built – these include a Nazi ‘secret weapon’ and the De Havilland Avrocar, also discussed in the book. Boomerangs represent another category of spinning aerodynamic body whose behavior can only be understood by coupling aerodynamics with gyrodynamics. The narrative, supported by equations and graphs, explains how the shape and throw of a boomerang relates to its trajectory. The natural world presents still other examples, namely the samaras or ‘seed-wings’ of many tree species, which autorotate during their descent, like a helicopter whose engine has failed. The flight performance of these spinning wings directly affects the dispersal and thus the evolutionary competitiveness of the trees concerned. Samara-type configurations are also considered for instrumentation and other payload dispersal applications. In short, the book discusses a range of familiar, connected, but largely undeveloped, topics in an accessible, but complete, manner. From the reviews of the first edition: "In his fascinating book Spinning Flight, Ralph Lorenz provides a rich feast of ... examples of spinning bodies ... . The book is well organized ... . The discussion in the book ... should be accessible to readers with some elementary understanding of aerodynamic principles. For the expert, the book is full of open problems ... . Its scope is extensive ... . In this respect, there may be something for everyone within its attractively designed cover ... ." (H. K. Moffatt, Nature, Vol. 444, December, 2006) "If you liked physics at school, then this book is for you. It concerns itself with flying objects that spin through the air, and even tells you how to impress your friends with the biomechanics of Frisbees. ... there is plenty of information at all levels, and the book has a wealth of detail that only an aerospace engineer like Lorenz could have come up with." (Len Fisher, BBC Focus, February, 2007)
Book Synopsis The Aerodynamics of Boomerangs by : Felix Hess
Download or read book The Aerodynamics of Boomerangs written by Felix Hess and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Brief description of different types of boomerangs (war boomerangs, throwing clubs, cross boomerang); Method of throwing Aerodynamic forces, influence of torque; Calculation of forces on arm of boomerang; Comparison of calculated orbits with actual orbits.
Book Synopsis The Aerodynamics of Boomerangs by : K. Cameron
Download or read book The Aerodynamics of Boomerangs written by K. Cameron and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerodynamics of Boomerangs by : David G. L. Howe
Download or read book Aerodynamics of Boomerangs written by David G. L. Howe and published by . This book was released on 1972 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Types and shapes of boomerangs; theory of flight of returning boomerangs; flight characteristics and patterns.
Book Synopsis Principles and Simulation of the Flight of a Straight Boomerang by : Nicolás Restrepo
Download or read book Principles and Simulation of the Flight of a Straight Boomerang written by Nicolás Restrepo and published by . This book was released on 1995 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: "There has been a lot of research done on the regular boomerang but little or none has ever been done on the straight boomerang. This not so popular toy does behave as a boomerang but the physics governing its flight are very different from those governing the regular boomerang's flight. In order to understand what makes the straight boomerang come back, high speed photography was used. It was concluded that the autorotation phenomenon played an important role during the flight. A mathematical model was then developed and the flight dynamics of the boomerang incorporating its actual behavior was simulated using MATLAB. The simulation results obtained were very close to those obtained from experimentation."--Abstract.
Book Synopsis All about Boomerangs by : Lorin L. Hawes
Download or read book All about Boomerangs written by Lorin L. Hawes and published by . This book was released on 1975 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designs, aerodynamics, history, records, throwing techniques, construction, etc. of boomerangs.
Download or read book Flight of the boomerang written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Brief note on undergraduate project of Dr. Peter Musgrave (University of Reading) - construction of boomerang launcher as part of study of boomerang aerodynamics.
Download or read book Boomerang Dynamics written by Felix Hess and published by . This book was released on 1973 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamics and motion of boomerangs and the calculation of boomerang flight-paths.
Book Synopsis The Boomerang, the Problem of Its Peculiar Flight by : Harvey Sutton
Download or read book The Boomerang, the Problem of Its Peculiar Flight written by Harvey Sutton and published by . This book was released on 1912* with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The New Science of Flight and Movement by : Tom Ballow
Download or read book The New Science of Flight and Movement written by Tom Ballow and published by Trafford Publishing. This book was released on 2005 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book debunks the conventional theory of flight and lift, and proves that the Gravity Generated Atmospheric Pressure Force and the Counter Force support an airplane in flight.
Book Synopsis Aerodynamic Aspects of Boomerangs Flight by : Lezfro Marques Silva
Download or read book Aerodynamic Aspects of Boomerangs Flight written by Lezfro Marques Silva and published by . This book was released on 1986 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brief account of tests and results; no Aboriginal content.
Download or read book Boomerang written by Philip Jones and published by Wakefield Press. This book was released on 1996 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the traditional making and uses of the boomerang. Provides information about topics such as boomerangs in fighting, fishing, rituals and trade, decorating boomerangs, and the differences in appearance and usage across Australia. Includes a bibliography. The author has published widely on Aboriginal history and art.
Book Synopsis Lord Howe Island by : Australian Museum
Download or read book Lord Howe Island written by Australian Museum and published by . This book was released on 1889 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Primitive Technology by : David Wescott
Download or read book Primitive Technology written by David Wescott and published by Gibbs Smith. This book was released on 1999 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Living in modern society, we have become increasingly disassociated from the earth, from the essence of ourselves, and the need is awakened in us to return to the wilderness--physically and emotionally. We long to feel a sense of connection with our ancient roots. This urge is what has prompted man's fascination with primitive skills: producing objects from natural materials using methods similar to prehistoric cultures. Primitive Technology: A Book of Earth Skills is a sharing of ideas--the philosophies, the history, and the personal stories by the authorities on primitive technology from teh pages of The Bulletin of Primitive Technology. Included are instructions for creating fire and tools of wood, stone, and bone, as well as fiber adhesives, projectiles, art, and music. Practicing these primitive methods will lead the seeker towards a tangible, raw connection with the ancient past, with nature's resources and, ultimately, with the creative forces that constructed the foundation of man's survival on the planet.
Book Synopsis Hydrodynamic Propulsion and Its Optimization by : J.A. Sparenberg
Download or read book Hydrodynamic Propulsion and Its Optimization written by J.A. Sparenberg and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: HYDRODYNAMIC PROPULSION AND ITS OPTIMIZATION ANALYTIC THEORY Hydrodynamic propulsion has been of major interest ever since craft took to the water. In the course of time, many attempts have been made to invent, develop, or to improve hydrodynamic propulsion devices. Remarkable achievements in this field were made essentially by experienced individuals, who were in need of reliable propulsion units such as paddle wheels, sculling devices, screw propellers, and of course, sails. The problem of minimizing the amount of input energy for a prescribed effective output was first investigated seriously at the beginning of this century. In 1919, BETZ presented a paper on air-screw propellers with minimum consumption of energy which could be applied to ship-screw propellers also. Next, attempts were made to optimize hydrodynamic propulsion units. Ensuing investigations concerned the optimization of the hydrodynamic system: ship-propeller. The first simple theory of ship propulsion which was presented considered more or less only thrust augmentation, wake processing and modification of propeller characteristics when operating behind the ships hull. This theory has been little improved meanwhile and is still useful, particularly with regard to practical ship design and for evaluating results of ship model tests. However, this theory is not adequate for optimization procedures necessary for high-technology propulsion, particularly for ship propellers utilizing propulsion improving devices such as tip end plates or tip fins at the propeller blades, spoilers in front of the propeller, asymmetrical stern etc.
Book Synopsis Elements of hydrodynamicp propulsion by : J.A. Sparenberg
Download or read book Elements of hydrodynamicp propulsion written by J.A. Sparenberg and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a treatment of a number of aspects of the theory of hydrody namic propulsion. It has been written with in mind technical propulsion systems generally based on lift producing profiles. We assume the fluid, which is admitted in conventional hydrody namics, to be incompressible. Further we assume the occurring Reynolds numbers to be sufficiently high such that the inertia forces dominate by far the viscous forces, therefore we take the fluid to be inviscid. Of course it must be realized that viscosity plays an important part in a number of phenomena displayed in real flows, such as flow separation at the nose of a profile and the entrainment of fluid by a ship's hull. Another ap proximation which will be used in general is that the problems are linearized. In other words it is assumed that the induced disturbance velocities are sufficiently small, such that their squares can be neglected with respect to these velocities themselves. Hence it is necessary to evaluate the domain of validity of the results with respect to these two a priori assumptions. Anyhow it seems advisable to have first a good understanding of the linearized non-viscous theory before embarking on complicated theories which describe more or less realistic situations. For elaborations of the theory to realistic situations we will refer to current literature. In low Reynolds number flow, singular external forces and moments are very useful.
