Download or read book Unconventional Flying Objects written by Hill, Paul R. and published by Hampton Roads Publishing. This book was released on 2014-06-01 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paul Hill was a well-respected NASA scientist when, in the early 1950s, he had a UFO sighting. Soon after, he built the first flying platform and was able to duplicate the UFO's tilt-to-control maneuvers. Official policy, however, prevented him from proclaiming his findings. "I was destined," says Hill, "to be as unidentified as the flying objects." For the next twenty-five years, Hill acted as an unofficial clearinghouse at NASA, collecting and analyzing sightings' reports for physical properties, propulsion possibilities, dynamics, etc. To refute claims that UFOs defy the laws of physics, he had to make "technological sense... of the unconventional object." After his retirement from NASA, Hill finally completed his remarkable analysis. This book, published posthumously, presents his findings that UFOs "obey, not defy, the laws of physics." Vindicating his own sighting and thousands of others, he proves that UFO technology is not only explainable, but attainable.
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)
Download or read book Beginning C Object Oriented Programming written by Dan Clark and published by Apress. This book was released on 2011-08-12 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning C# Object-Oriented Programming brings you into the modern world of development as you master the fundamentals of programming with C# and learn to develop efficient, reusable, elegant code through the object-oriented programming (OOP) methodology. Take your skills out of the 20th century and into this one with Dan Clark's accessible, quick-paced guide to C# and object-oriented programming, completely updated for .NET 4.0 and C# 4.0. As you develop techniques and best practices for coding in C#, one of the world's most popular contemporary languages, you'll experience modeling a “real world” application through a case study, allowing you to see how both C# and OOP (a methodology you can use with any number of languages) come together to make your code reusable, modern, and efficient. With more than 30 fully hands-on activities, you'll discover how to transform a simple model of an application into a fully-functional C# project, including designing the user interface, implementing the business logic, and integrating with a relational database for data storage. Along the way, you will explore the .NET Framework, the creation of a Windows-based user interface, a web-based user interface, and service-oriented programming, all using Microsoft's industry-leading Visual Studio 2010, C#, Silverlight, the Entity Framework, and more.
Download or read book Perception Cognition and Decision Training written by Joan N. Vickers and published by Human Kinetics. This book was released on 2007 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Joan Vickers presents evidence on gaze control within visual perception and action in sport as well as the science underlying decision training.
Download or read book Objects of War written by Leora Auslander and published by Cornell University Press. This book was released on 2018-05-15 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book, Objects of War, illuminates the ways in which people have used things to grapple with the social, cultural, and psychological upheavals wrought by war and forced displacement.― Utah Public Radio Historians have become increasingly interested in material culture as both a category of analysis and as a teaching tool. And yet the profession tends to be suspicious of things; words are its stock-in-trade. What new insights can historians gain about the past by thinking about things? A central object (and consequence) of modern warfare is the radical destruction and transformation of the material world. And yet we know little about the role of material culture in the history of war and forced displacement: objects carried in flight; objects stolen on battlefields; objects expropriated, reappropriated, and remembered. Objects of War illuminates the ways in which people have used things to grapple with the social, cultural, and psychological upheavals wrought by war and forced displacement. Chapters consider theft and pillaging as strategies of conquest; soldiers' relationships with their weapons; and the use of clothing and domestic goods by prisoners of war, extermination camp inmates, freed people, and refugees to make claims and to create a kind of normalcy. While studies of migration and material culture have proliferated in recent years, as have histories of the Napoleonic, colonial, World Wars, and postcolonial wars, few have focused on the movement of people and things in times of war across two centuries. This focus, in combination with a broad temporal canvas, serves historians and others well as they seek to push beyond the written word. Contributors: Noah Benninga, Sandra H. Dudley, Bonnie Effros, Cathleen M. Giustino, Alice Goff, Gerdien Jonker, Aubrey Pomerance, Iris Rachamimov, Brandon M. Schechter, Jeffrey Wallen, and Sarah Jones Weicksel
Download or read book Aids to Identification of Flying Objects written by United States. Air Force and published by . This book was released on 1968 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unidentified flying objects (UFOs), or flying saucers as they are known to many persons, have been the subject of considerable interest on the part of the public as well as the U.S. Air Force for two decades. On Dec. 30, 1947, the Air Force was given the responsibility by the Department of Defense for investigating UFO sightings. This booklet is intended to meet the needs of individuals seeking information about UFOs. The introduction is a brief history of UFO reports and studies and provides some information on scientific observations and analyses. The section "aids to identification of flying objects" is more technical and should be of interest to persons desiring in-depth information on flying objects and natural phenomena. The "questions and answers" section will help answer many of the questions commonly asked about UFOs.
Download or read book Distributed and Parallel Database Object Management written by Elisa Bertino and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Distributed and Parallel Database Object Management brings together in one place important contributions and state-of-the-art research results in this rapidly advancing area of computer science. Distributed and Parallel Database Object Management serves as an excellent reference, providing insights into some of the most important issues in the field.
Download or read book Basic Flight Mechanics written by Ashish Tewari and published by Springer. This book was released on 2016-04-22 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents flight mechanics of aircraft, spacecraft, and rockets to technical and non-technical readers in simple terms and based purely on physical principles. Adapting an accessible and lucid writing style, the book retains the scientific authority and conceptual substance of an engineering textbook without requiring a background in physics or engineering mathematics. Professor Tewari explains relevant physical principles of flight by straightforward examples and meticulous diagrams and figures. Important aspects of both atmospheric and space flight mechanics are covered, including performance, stability and control, aeroelasticity, orbital mechanics, and altitude control. The book describes airplanes, gliders, rotary wing and flapping wing flight vehicles, rockets, and spacecraft and visualizes the essential principles using detailed illustration. It is an ideal resource for managers and technicians in the aerospace industry without engineering degrees, pilots, and anyone interested in the mechanics of flight.
Download or read book Unidentified Flying Objects written by United States. Congress. House. Committee on Armed Services and published by . This book was released on 1966 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Committee Serial No. 55. Considers sightings of unidentified flying objects, together with U.S. Air Force evaluations of the sightings as part of Project Blue Book.
Download or read book Departments of Transportation and Housing and Urban Development and Related Agencies Appropriations for 2014 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Transportation, Housing and Urban Development, and Related Agencies and published by . This book was released on 2013 with total page 1542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modern Data Access with Entity Framework Core written by Holger Schwichtenberg and published by Apress. This book was released on 2018-06-27 with total page 665 pages. Available in PDF, EPUB and Kindle. Book excerpt: C# developers, here’s your opportunity to learn the ins-and-outs of Entity Framework Core, Microsoft’s recently redesigned object-relational mapper. Benefit from hands-on learning that will teach you how to tackle frustrating database challenges, such as workarounds to missing features in Entity Framework Core, and learn how to optimize the performance of your applications, head-on! Modern Data Access with Entity Framework Core teaches best practices, guidance, and shortcuts that will significantly reduce the amount of resources you internally dedicate to programming data access code. The proven methods and tools taught in this book, such as how to get better performance, and the ability to select the platform of your choice, will save you valuable time and allow you to create seamless data access. Dive into succinct guidance that covers the gamut-- from installing Entity Framework Core, reverse engineering, forward engineering (including schema migrations), and data reading and modification with LINQ, Dynamic LINQ, SQL, Stored Procedures, and Table Valued Functions- to using third-party products such as LINQPad, Entity Developer, Entity Framework Profiler, EFPlus, and AutoMapper. You'll also appreciate excerpts of conceptual software architecture discussion around Entity Framework Core that might otherwise take years to learn. What You'll Learn Understand the core concepts of Entity Framework Core, as well process models for existing databases (reverse engineering) and the generation of database schemas from object models (forward engineering) Study real-world case studies for hands-on EF Core instruction Get up to speed with valuable database access scenarios and code samples Discover workarounds to augment missing features in Entity Framework Core Use Entity Framework Core to write mobile apps Bonus online appendix covers Entity Framework Core 2.1 release updates Who This Book Is For Software developers who have basic experience with .NET and C#, as well as some understanding of relational databases. Knowledge of predecessor technologies such as ADO.NET and the classic ADO.NET Entity Framework is not necessary to learn from this book.
Download or read book Flip How the Frisbee Took Flight written by Margaret Muirhead and published by Charlesbridge Publishing. This book was released on 2021-04-27 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This charming picture book biography about the inventor of the Frisbee follows the twists and turns of innovation and highlights the persistence it takes to succeed. Fred Morrison is credited with inventing this classic toy, but for centuries folks have been flipping for flying discs. Ancient Greeks flicked discs, and beginning in the 1920s, college kids at Yale University were tossing pie tins. Fred's invention quest began in 1932 after tossing a tin popcorn lid around the backyard. For more than twenty years, Fred and his wife, Lu, tried and failed to perfect a flying-disc concept. Eventually they created what we know today as the Frisbee. Fun and fact-filled, this Frisbee origin story is sure to delight sports and STEM fans alike.
Download or read book Departments of Transportation and Housing and Urban Development and Related Agencies Appropriations for 2018 FY 2018 budget justifications National Highway Traffic Safety Administration Federal Railroad Administration Federal Transit Administration Saint Lawrence Seaway Development Corporation Maritime Administration Pipeline and Hazardous Materials Safety Administration Office of Inspector General Surface Transportation Board written by United States. Congress. House. Committee on Appropriations. Subcommittee on Transportation, Housing and Urban Development, and Related Agencies and published by . This book was released on 2017 with total page 1264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book STEM Like a Girl written by Sarah Foster and published by Black Dog & Leventhal. This book was released on 2021-09-14 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: STEM Like a Girl empowers girls, 8-12, with the knowledge and confidence to become future problem solvers and leaders in the scientific world and beyond. This fully illustrated and photographic book profiles 35 inspiring girls and offers 15 hands-on, STEM-based experiments that they can do at home. While leading a hands-on engineering project in her son's elementary school, researcher and biotech engineer Sarah Foster noticed fewer girls raising their hands or jumping into the activities than the boys. Surprised to see a gender gap at play at such a young age, she decided to do something about it. She founded STEM Like a Girl in 2017 with the goal of introducing young girls to the fun and rewarding fields of science, technology, engineering, and math (STEM). In her first book, Sarah captures 35 girls expressing their love of all things STEM, Each girl speaks to her inspirations and role models, her favorite types of experiments, and why failure is almost always a good thing. Along with these profiles are 15 experiments girls can do at home on their own or with adults including extracting DNA from a strawberry, employing Newton's Third Law of Motion to build and fire an air cannon, and enacting acid-base chemistry to create homemade fizzy bath bombs.
Download or read book Artifacts of Flight written by Carolyn Russo and published by Harry N. Abrams. This book was released on 2003-11-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A century ago, the Wright brothers' remarkable flight ushered in a new age and a new world. "Artifacts of Flight" celebrates the history of air travel--and space travel--by presenting not only some of the most famous but also some of the most intriguing objects in the National Air and Space Museum collection. Photos.
Download or read book Head First Rails written by David Griffiths and published by "O'Reilly Media, Inc.". This book was released on 2013-05-23 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ready to transport your web applications into the Web 2.0 era? Head First Rails takes your programming -- and productivity -- to the max. You'll learn everything from the fundamentals of Rails scaffolding to building customized interactive web apps using Rails' rich set of tools and the MVC framework. By the time you're finished, you'll have learned more than just another web framework. You'll master database interactions, integration with Ajax and XML, rich content, and even dynamic graphing of your data -- all in a fraction of the time it takes to build the same apps with Java, PHP, ASP.NET, or Perl. You'll even get comfortable and familiar with Ruby, the language that underpins Rails. But you'll do it in the context of web programming, and not through boring exercises such as "Hello, World!" Your time is way too valuable to waste struggling with new concepts. Using the latest research in cognitive science and learning theory to craft a multi-sensory learning experience, Head First Rails uses a visually rich format designed to take advantage of the way your brain really works.
Download or read book Readings in Intelligent User Interfaces written by Mark Maybury and published by Morgan Kaufmann. This book was released on 1998-04 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a compilation of the classic readings in intelligent user interfaces. This text focuses on intelligent, knowledge-based interfaces, combining spoken language, natural language processing, and multimedia and multimodal processing.
