B. R. Ambedkar Open University ; Digital Library of India
Universal Digital Library
Excerpt: Recently declassified photographs from spy satellites are an important addition to the record of the Earth?s land surface held by the U.S. Geological Survey (USGS). More than 800,000 high-resolution photos taken between 1959 through 1972 were made available by Executive Order of the President. The collection is held at the USGS EROS Data Center, near Sioux Falls, South Dakota, and are offered for public sale. For some purposes in earth science studies, these pho...
Excerpt: PREFACE; Sun Tzu and Information Warfare contains papers submitted by authors in response to an open international research competition sponsored by the Information Resources Management College, National Defense University and funded by the National Defense University Foundation.
Description: This document contains information regarding topics such as The Call for Proposals, Mars Airplane Design Specifications, and Design and Refine Mars Airplane Prototype...
Physics Literature
Abstract: That the speed of light is always c (รท300,000 km/s) relative to any observer in nonaccelerating motion is one of the foundational concepts of physics. Experimentally this was supposed to have been first revealed by the 1887 Michelson-Morley experiment, and was made one of Einstein?s key postulates of Special Relativity in 1905. However in 2002 the actual 1887 fringe shift data was analyzed for the first time with a theory for the Michelson interferometer that u...
Excerpt: Book IV. Modern Development of the Chemical and Biological Sciences. AS regards chronology, the epoch covered in the present volume is identical with that viewed in the preceding one. But now as regards subject matter we pass on to those diverse phases of the physical world which are the field of the chemist, and to those yet more intricate processes which have to do with living organisms. So radical are the changes here that we seem to be entering new worlds; a...
Excerpt: The Systems Integration and Engineering (SIE) Branch provides end-to-end engineering of ISD mission systems development activities, including software development and flight operations. The SIE Branch consists of 39 engineers providing support to several projects such as HST, JWST, ESMO, and SSMO. A few core capabilities of the SIE Branch are...
Excerpt: One of the first devices to successfully employ the principles essential to rocket flight was a wooden bird. The writings of Aulus Gellius, a Roman, tell a story of a Greek named Archytas who lived in the city of Tarentum, now a part of southern Italy. Somewhere around the year 400 B.C., Archytas mystified and amused the citizens of Tarentum by flying a pigeon made of wood. Escaping steam propelled the bird suspended on wires. The pigeon used the action-reaction...
Text Books
Preface: A Background of European History Introduction. The purpose of this volume is to give the reader a broad historic overview of the period from the high middle ages to the present day, roughly AD 1000 and AD 2000. This is, of course, a somewhat arbitrary period, but not a wholly unuseful one; whilst the early middle ages see a contraction of the urbanised societies of Europe, the eleventh century sees a consolidation of many states and the growth of their military ...
Excerpt: Muirhead Library Of Philosophy. An admirable statement of the aims of the Library of Philosophy was provided by the first editor, the late Professor J. H. Muirhead, in his description of the original programme printed in Erdmann?s History of Philosophy under the date 1890. This was slightly modified in subsequent volumes to take the form of the following statement:
Excerpt: Chapter I. The Successors of Newton in Astronomy. The work of Johannes Hevelius-Halley and Hevelius-Halley's observation of the transit of Mercury, and his method of determining the parallax of the planets-Halley's observation of meteors-His inability to explain these bodies-The important work of James Bradley-Lacaille's measurement of the arc of the meridian-The determination of the question as to the exact shape of the earth-D'Alembert and his influence upon s...