The Vertical Plane: The Mystery of the Dodleston Messages: A unique supernatural detective story.

Along with many small improvements, this revised edition contains van Yzeren's new proof of Pascal's theorem (§1.7) and, in Chapter 2, an improved treatment of order and sense. The Sylvester-Gallai theorem, instead of being introduced as a curiosity, is now used as an essential step in the theory of harmonic separation (§3.34). This makes the logi cal development self-contained: the footnotes involving the References (pp. 214-216) are for comparison with earlier treatments, and to give credit where it is due, not to fill gaps in the argument. H.S.M.C. November 1992 v Preface to the Second Edition Why should one study the real plane? To this question, put by those who advocate the complex plane, or geometry over a general field, I would reply that the real plane is an easy first step. Most of the prop erties are closely analogous, and the real field has the advantage of intuitive accessibility. Moreover, real geometry is exactly what is needed for the projective approach to non· Euclidean geometry. Instead of introducing the affine and Euclidean metrics as in Chapters 8 and 9, we could just as well take the locus of 'points at infinity' to be a conic, or replace the absolute involution by an absolute polarity.

Aircraft PERFORMANCE STRAIGHTFORWARD METHODS TO DESIGN AND OPERATE AIRCRAFT TO MEET PERFORMANCE SPECIFICATIONS Aircraft Performance sets forth a group of tested and proven methods needed to determine the performance of an aircraft. The central theme of this book is the energy method, which enhances understanding of the standard methods and provides accessibility to advanced topics. As a result, readers gain a thorough understanding of the performance issues involved in operating an aircraft in an efficient and economic manner. While covering all the standard topics—level and climbing flight, range and endurance, take-off and landing, and maneuvering flight—the book focuses on the energy methods applied to path performance analysis. Throughout the text, numerous examples from both the commercial and military sectors show readers how the concepts and calculations are applied to real-life situations. Problems, ranging from basic to complex, test the readers’ understanding and provide an opportunity for essential practice. To help focus the readers’ attention on core issues, this text assumes that aerodynamics and propulsion are known inputs. Special appendices are provided to present some aerodynamic and propulsive equations and data. In general, topics are separated into horizontal and vertical plane approaches. Following an introduction and overview, basic energy concepts are employed to obtain a fundamental performance equation. This text, with its extensive use of examples and problem sets, is ideal for upper- level undergraduate and graduate students in engineering. It also serves as a reference for design engineers in both military and industrial sectors who want a set of clear and reliable methods to calculate aircraft performance.

A compact guide to 70 of the most iconic aircraft to have shaped warfare over the last 100 years. Aviation has revolutionised warfare over the last 100 years, and this new pocket guide gives the reader the essential details of 70 iconic aircraft, including the Sopwith Camel, the Spitfire, the Messerschmitt Bf 109, the P-51 Mustang and the F-4 Phantom. Drawing on Osprey's comprehensive aviation archive, Plane Spotter's Guide uses detailed profile artwork to illustrate and aid recognition, as well as specification boxes to provide all the technical details.

Take a seat—the captain’s seat, that is—and relax. You’re about to land a Boeing 747. “Brilliant.” —The Sunday Times A Daily Mail and Spectator Best Book of the Year A Points Guy Best Book of the Year The mystery of flight is magical; the reality even more so—from the physics that keeps a 450-ton vehicle aloft, to the symphony of technology and teamwork that safely sets it down again. Take it from Mark Vanhoenacker—British Airways pilot, international bestselling author, and your new flight instructor. This is How to Land a Plane. Vanhoenacker covers every step—from approach to touchdown— with precision, wit, and infectious enthusiasm. Aided by dozens of illustrations, you’ll learn all the tools and rules of his craft: altimeters, glidepaths, alignment, and more. Before you know it, you’ll be on the ground, exiting the aircraft with a whole new appreciation for the art and science of flying. “A good choice for anyone who's fantasized about suddenly having to get an aircraft safely down on the ground . . . walks you through some of the basics of flight and landing, from how to recognize a cluster of instruments known as the ‘six pack’ to knowing what purpose the PAPI lights near the runway serve.” —Popular Science “A work of humorous and outright poetic travel geekery.” —National Geographic Traveler

Jacques Hadamard, among the greatest mathematicians of the twentieth century, made signal contributions to a number of fields. But his mind could not be confined to the upper reaches of mathematical thought. He also produced a massive two-volume work, on plane and solid geometry, for pre-college teachers in the French school system. In those books, Hadamard's style invites participation. His exposition is minimal, providing only the results necessary to support the solution of the many elegant problems he poses afterwards. That is, the problems interpret the text in the way that harmony interprets melody in a well-composed piece of music. The present volume offers solutions to the problems in the first part of Hadamard's work (Lessons in Geometry. I. Plane Geometry, Jacques Hadamard, Amer. Math. Soc. (2008)), and can be viewed as a reader's companion to that book. It requires of the reader only the background of high school plane geometry, which Lessons in Geometry provides. The solutions strive to connect the general methods given in the text with intuitions that are natural to the subject, giving as much motivation as possible as well as rigorous and formal solutions. Ideas for further exploration are often suggested, as well as hints for classroom use. This book will be of interest to high school teachers, gifted high school students, college students, and those mathematics majors interested in geometry.