A Historical Sketch of the Experimental Determination of the Resistance of the Air to the Motion of Projectiles (Classic Reprint) PDF Download
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Author: Francis Bashforth Publisher: ISBN: 9781332520459 Category : Science Languages : en Pages : 42
Book Description
Excerpt from A Historical Sketch of the Experimental Determination of the Resistance of the Air to the Motion of Projectiles The Royal Society awarded their Copley Medal to Robins in 1746. His experiments and theories are said to have met with the greatest approbation from the best judges at home. His work was translated by Euler into High Dutch, 1745, and by Le Roy into French, 1751. He was appointed engineer-general to the East India Company, 1749, for which he was to receive 500 a year for life, provided he gave his services for five years in India. Two years after Hutton arrived at Woolwich, 1775, he "in "conjunction with some able officers of the Royal Regiment of "Artillery, and other ingenious gentlemen, first instituted a course "of experiments on fired gunpowder and cannon balls" for government. His "account of them was presented to the Royal "Society, who honoured it with the gift of the annual gold medal, "and printed it in the Philosophical Transactions for the year "1778." Hutton remarks "That part of Mr Robins's book has always "been much admired, which relates to the experimental method "of ascertaining the actual velocities of shot, and in imitation of "which, but on a large scale, those experiments were made which "were described in my paper." The projectiles used by Hutton varied from one to near three pounds in weight, afterwards increased to six pounds. Further experiments were carried on from 1783 to 1791, and the results obtained were considered satisfactory. Hutton at first made use of a pendulum weighing about 600 lbs. It was increased to 1014 lbs. in 1788, afterwards to 1633 lbs., and at last to 2099 lbs. Hutton's health began to fail in 1806, and when he retired the Board of Ordnance manifested their approbation of his long and meritorious services by granting him a pension for life of 500 per annum. Gregory made some experiments at Woolwich in 1815-18 with a ballistic pendulum weighing 7046 lbs. chiefly on the effect of windage. The first experiments made with the ballistic pendulum at Metz were carried out during 1839, 1840. The weights of the projectiles were about 9, 13, 26 and 51 lbs. The weight of the pendulum was 13,228 lbs. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works."
Author: Francis Bashforth Publisher: ISBN: 9781332520459 Category : Science Languages : en Pages : 42
Book Description
Excerpt from A Historical Sketch of the Experimental Determination of the Resistance of the Air to the Motion of Projectiles The Royal Society awarded their Copley Medal to Robins in 1746. His experiments and theories are said to have met with the greatest approbation from the best judges at home. His work was translated by Euler into High Dutch, 1745, and by Le Roy into French, 1751. He was appointed engineer-general to the East India Company, 1749, for which he was to receive 500 a year for life, provided he gave his services for five years in India. Two years after Hutton arrived at Woolwich, 1775, he "in "conjunction with some able officers of the Royal Regiment of "Artillery, and other ingenious gentlemen, first instituted a course "of experiments on fired gunpowder and cannon balls" for government. His "account of them was presented to the Royal "Society, who honoured it with the gift of the annual gold medal, "and printed it in the Philosophical Transactions for the year "1778." Hutton remarks "That part of Mr Robins's book has always "been much admired, which relates to the experimental method "of ascertaining the actual velocities of shot, and in imitation of "which, but on a large scale, those experiments were made which "were described in my paper." The projectiles used by Hutton varied from one to near three pounds in weight, afterwards increased to six pounds. Further experiments were carried on from 1783 to 1791, and the results obtained were considered satisfactory. Hutton at first made use of a pendulum weighing about 600 lbs. It was increased to 1014 lbs. in 1788, afterwards to 1633 lbs., and at last to 2099 lbs. Hutton's health began to fail in 1806, and when he retired the Board of Ordnance manifested their approbation of his long and meritorious services by granting him a pension for life of 500 per annum. Gregory made some experiments at Woolwich in 1815-18 with a ballistic pendulum weighing 7046 lbs. chiefly on the effect of windage. The first experiments made with the ballistic pendulum at Metz were carried out during 1839, 1840. The weights of the projectiles were about 9, 13, 26 and 51 lbs. The weight of the pendulum was 13,228 lbs. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works."
Author: General Giulio Douhet Publisher: Pickle Partners Publishing ISBN: 1782898522 Category : History Languages : en Pages : 620
Book Description
In the pantheon of air power spokesmen, Giulio Douhet holds center stage. His writings, more often cited than perhaps actually read, appear as excerpts and aphorisms in the writings of numerous other air power spokesmen, advocates-and critics. Though a highly controversial figure, the very controversy that surrounds him offers to us a testimonial of the value and depth of his work, and the need for airmen today to become familiar with his thought. The progressive development of air power to the point where, today, it is more correct to refer to aerospace power has not outdated the notions of Douhet in the slightest In fact, in many ways, the kinds of technological capabilities that we enjoy as a global air power provider attest to the breadth of his vision. Douhet, together with Hugh “Boom” Trenchard of Great Britain and William “Billy” Mitchell of the United States, is justly recognized as one of the three great spokesmen of the early air power era. This reprint is offered in the spirit of continuing the dialogue that Douhet himself so perceptively began with the first edition of this book, published in 1921. Readers may well find much that they disagree with in this book, but also much that is of enduring value. The vital necessity of Douhet’s central vision-that command of the air is all important in modern warfare-has been proven throughout the history of wars in this century, from the fighting over the Somme to the air war over Kuwait and Iraq.
Author: Raymond Serway Publisher: Cengage Learning ISBN: 9781133953951 Category : Science Languages : en Pages : 1344
Book Description
As a market leader, PHYSICS FOR SCIENTISTS AND ENGINEERS is one of the most powerful brands in the physics market. While preserving concise language, state-of-the-art educational pedagogy, and top-notch worked examples, the Ninth Edition highlights the Analysis Model approach to problem-solving, including brand-new Analysis Model Tutorials, written by text co-author John Jewett, and available in Enhanced WebAssign. The Analysis Model approach lays out a standard set of situations that appear in most physics problems, and serves as a bridge to help students identify the correct fundamental principle--and then the equation--to utilize in solving that problem. The unified art program and the carefully thought out problem sets also enhance the thoughtful instruction for which Raymond A. Serway and John W. Jewett, Jr. earned their reputations. The Ninth Edition of PHYSICS FOR SCIENTISTS AND ENGINEERS continues to be accompanied by Enhanced WebAssign in the most integrated text-technology offering available today. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version.
Author: Department of the Army Publisher: ISBN: 9781975605674 Category : Languages : en Pages : 664
Book Description
Training Circular (TC) 3-09.81, "Field Artillery Manual Cannon Gunnery," sets forth the doctrine pertaining to the employment of artillery fires. It explains all aspects of the manual cannon gunnery problem and presents a practical application of the science of ballistics. It includes step-by-step instructions for manually solving the gunnery problem which can be applied within the framework of decisive action or unified land operations. It is applicable to any Army personnel at the battalion or battery responsible to delivered field artillery fires. The principal audience for ATP 3-09.42 is all members of the Profession of Arms. This includes field artillery Soldiers and combined arms chain of command field and company grade officers, middle-grade and senior noncommissioned officers (NCO), and battalion and squadron command groups and staffs. This manual also provides guidance for division and corps leaders and staffs in training for and employment of the BCT in decisive action. This publication may also be used by other Army organizations to assist in their planning for support of battalions. This manual builds on the collective knowledge and experience gained through recent operations, numerous exercises, and the deliberate process of informed reasoning. It is rooted in time-tested principles and fundamentals, while accommodating new technologies and diverse threats to national security.
Author: Howard D. Curtis Publisher: Elsevier ISBN: 0080887848 Category : Technology & Engineering Languages : en Pages : 740
Book Description
Orbital Mechanics for Engineering Students, Second Edition, provides an introduction to the basic concepts of space mechanics. These include vector kinematics in three dimensions; Newton's laws of motion and gravitation; relative motion; the vector-based solution of the classical two-body problem; derivation of Kepler's equations; orbits in three dimensions; preliminary orbit determination; and orbital maneuvers. The book also covers relative motion and the two-impulse rendezvous problem; interplanetary mission design using patched conics; rigid-body dynamics used to characterize the attitude of a space vehicle; satellite attitude dynamics; and the characteristics and design of multi-stage launch vehicles. Each chapter begins with an outline of key concepts and concludes with problems that are based on the material covered. This text is written for undergraduates who are studying orbital mechanics for the first time and have completed courses in physics, dynamics, and mathematics, including differential equations and applied linear algebra. Graduate students, researchers, and experienced practitioners will also find useful review materials in the book. - NEW: Reorganized and improved discusions of coordinate systems, new discussion on perturbations and quarternions - NEW: Increased coverage of attitude dynamics, including new Matlab algorithms and examples in chapter 10 - New examples and homework problems
Author: Francis Bashforth
Author: Francis Bashforth
Author: Bashforth Francis
Author: Francis Bashforth
Author: Francis Bashforth
Author: General Giulio Douhet
Author: Roger Bartlett
Author: Raymond Serway
Author: Department of the Army
Author: Howard D. Curtis
Author: O.L. de Lange