X-Planes from the X-1 to the X-60

X-Planes from the X-1 to the X-60

Author: Michael H. Gorn

Publisher: Springer Nature

Published: 2022-01-01

Total Pages: 183

ISBN-13: 3030863980

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Foreword by Dr. Roger D. Launius, Former NASA Chief Historian For the past 75 years, the U.S. government has invested significant time and money into advanced aerospace research, as evidenced by its many experimental X-plane aircraft and rockets. NASA's X-Planes asks a simple question: What have we gained from it all? To answer this question, the authors provide a comprehensive overview of the X-plane’s long history, from the 1946 X-1 to the modern X-60. The chapters describe not just the technological evolution of these models, but also the wider story of politics, federal budgets, and inter-agency rivalries surrounding them. The book is organized into two sections, with the first covering the operational X-planes that symbolized the Cold War struggle between the U.S. and the U.S.S.R, and the second section surveying post-Cold War aircraft and spacecraft. Featuring dozens of original illustrations of X-plane cross-sections, in-flight profiles, close-ups, and more, this book will educate general readers and specialists alike.


The Ultimate Challenge

The Ultimate Challenge

Author: Jeffrey C. Lagarias

Publisher: American Mathematical Society

Published: 2023-04-19

Total Pages: 360

ISBN-13: 1470472899

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The $3x+1$ problem, or Collatz problem, concerns the following seemingly innocent arithmetic procedure applied to integers: If an integer $x$ is odd then “multiply by three and add one”, while if it is even then “divide by two”. The $3x+1$ problem asks whether, starting from any positive integer, repeating this procedure over and over will eventually reach the number 1. Despite its simple appearance, this problem is unsolved. Generalizations of the problem are known to be undecidable, and the problem itself is believed to be extraordinarily difficult. This book reports on what is known on this problem. It consists of a collection of papers, which can be read independently of each other. The book begins with two introductory papers, one giving an overview and current status, and the second giving history and basic results on the problem. These are followed by three survey papers on the problem, relating it to number theory and dynamical systems, to Markov chains and ergodic theory, and to logic and the theory of computation. The next paper presents results on probabilistic models for behavior of the iteration. This is followed by a paper giving the latest computational results on the problem, which verify its truth for $x < 5.4 cdot 10^{18}$. The book also reprints six early papers on the problem and related questions, by L. Collatz, J. H. Conway, H. S. M. Coxeter, C. J. Everett, and R. K. Guy, each with editorial commentary. The book concludes with an annotated bibliography of work on the problem up to the year 2000.


Marvels X

Marvels X

Author: Alex Ross

Publisher: Marvel Entertainment

Published: 2020-12-09

Total Pages: 152

ISBN-13: 1302935291

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Collects Marvels X (2020) #1-6. The amazing prequel to the legendary EARTH X trilogy! David has a problem. He’s the last normal human on Earth. He lives in a world of monsters that would love to devour him. And these monsters are his former neighbors — mutating, like the rest of the world, into something strange and frightening and new. David has one hope: to get to New York, where Captain America and the rest of the heroes are. But the big city doesn’t bring the safety he hoped it would. And the heroes don’t know how to cope with a world that’s changing all around them. No matter what Spider-Man or Daredevil or even Doctor Strange do to protect him, they can’t save David from what is hunting him!


Sudoku X

Sudoku X

Author: Christopher Monckton

Publisher: Justin, Charles & Co.

Published: 2005-10-25

Total Pages: 161

ISBN-13: 1932112456

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Sudoku is the new number puzzle craze sweeping the nation, and Sudoku X is the only puzzle collection to add diagonal play to the Sudoku formula.


The Busyness Delusion

The Busyness Delusion

Author: Chris Gardener

Publisher: Let's Tell Your Story Publishing

Published: 2018-06-17

Total Pages: 190

ISBN-13: 9781910600214

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When your business is a "job in disguise" and feels like a hamster wheel it's time to get smarter. How to have financial security, freedom and fulfilment ... without being so stupidly busy. When people find out you run your own business you know what they'll ask: "How's it going? Are you busy?" Somehow, "busy" has come to mean "successful." But you didn't wake up this morning thinking "my main aim today is to be as busy as possible!" You don't have your business "to be busy" ... so why DO you work so hard? We all have our businesses for the same reason. The same three reasons actually - to have financial security, freedom and fulfilment - the 3Fs. But these aren't the outcomes for most small businesses. Instead, the common experience feels like you're on a hamster wheel, where the hours are long and the rewards mediocre. Self-esteem is threatened and life, love and relationships impacted. This book explains why this happens and how to approach work in a smarter way, to have a better business with less busyness and more certain results, so you can get back to living and loving life again. How, by climbing off the hamster wheel and escaping The Busyness Delusion, you can take the easier, more certain route to turn your own business into one that does give you all 3Fs. It covers: Why the hustle method is seductive but flawed, and how to use a smarter approach Why most self-employed people unwittingly choose the hardest way to earn, and what the easier options are. How to overcome the biggest obstacle to a smarter business and better life. What financial security really means and how to achieve it quicker and more easily. How to get better results by applying a simple model of how the brain works to give you more control. How to eliminate your competition to make it easier to get better results. Providing a new framework, illustrated in clear diagrams and told through a compelling story, this book reveals why copying others creates the hamster wheel effect, and precisely what to do to have a business and life you deserve. "This book nails the problem with most small businesses. The solutions are time-tested principles, for the first time pulled together in an original and enjoyable way that's easy to understand and implement." Dan Sager


Fundamentals of Powder Diffraction and Structural Characterization of Materials

Fundamentals of Powder Diffraction and Structural Characterization of Materials

Author: Vitalij Pecharsky

Publisher: Springer Science & Business Media

Published: 2005-03-03

Total Pages: 732

ISBN-13: 0387241477

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Requires no prior knowledge of the subject, but is comprehensive and detailed making it useful for both the novice and experienced user of the powder diffraction method. Useful for any scientific or engineering background, where precise structural information is required. Comprehensively describes the state-of-the-art in structure determination from powder diffraction data both theoretically and practically using multiple examples of varying complexity. Pays particular attention to the utilization of Internet resources, especially the well-tested and freely available computer codes designed for processing of powder diffraction data.


Chapterwise Topicwise Solved Papers Mathematics for Engineering Entrances 2020

Chapterwise Topicwise Solved Papers Mathematics for Engineering Entrances 2020

Author: B L Sharma

Publisher: Arihant Publications India limited

Published: 2019-08-29

Total Pages: 1136

ISBN-13: 9313199688

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For cracking any competitive exam one need to have clear guidance, right kind of study material and thorough practice. When the preparation is done for the exams like JEE Main and NEET one need to have clear concept about each and every topic and understanding of the examination pattern are most important things which can be done by using the good collection of Previous Years' Solved Papers. Chapterwise Topicwise Solved Papers MATHEMATICS for Engineering Entrances is a master collection of exams questions to practice for JEE Main & Advanced 2020, which have been consciously revised as per the latest pattern of exam. It carries 15 Years of Solved Papers [2019-2005] in both Chapterwise and topicwise manner by giving the full coverage to syllabus. This book is divided into parts based on Class XI and XII NCERT syllabus covering each topic. This book gives the complete coverage of Questions asked in JEE Main &Advanced, AIEEE, IIT JEE & BITSAT, UPSEE, MANIPAL, EAMCET, WB JEE, etc., Thorough practice done from this book will the candidates to move a step towards their success. TABLE OF CONTENT Sets, Relations and Functions, Complex Numbers, Equations and Inequalities, Sequences and Series, Permutations and Combinations, Binomial Theorem and Mathematical Induction, Matrices and Determinants, Trigonometric Identities and Equations, Inverse Trigonometric Functions, Properties of Triangle, Heights and Distances, Rectangular Cartesian Coordinates, Straight Line and Pair of Straight Lines, Circle and System of Circles, Conic Section, Limits, Continuity and Differentiability, Differentiation, Applications of Derivatives, Indefinite Integrals, Definite Integrals, Applications of Integrals, Differential Equations, Vector Algebra, Three Dimensional Geometry, Statistics, Probability, Mathematical Logic and Boolean Algebra, Linear Programming, Statics and Dynamics, Miscellaneous, Questions Asked in JEE Main 2015, Solved Papers 2016 (JEE Main, BITSAT, AP EAMCET, TS EAMCET, GGSIPU), Solved Papers 2017 (JEE Main & Advanced, BITSAT, VIT & WBJEE), Solved Papers 2018 (JEE Main & Advanced, BITSAT & WBJEE), Solved Papers 2019 (JEE Main & Advanced, BITSAT & WBJEE).


Statistical Prediction by Discriminant Analysis

Statistical Prediction by Discriminant Analysis

Author: Robert Miller

Publisher: Springer

Published: 2016-06-27

Total Pages: 63

ISBN-13: 1940033527

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The objects of the American Meteorological Society are "the development and dissemination of knowledge of meteorology in all its phases and applications, and the advancement of its professional ideals." The organization of the Society took place in affiliation with the American Association for the Advancement of Science at Saint Louis, Missouri, December 29, 1919, and its incorporation, at Washington, D. C., January 21, 1920. The work of the Society is carried on by the Bulletin, the Journal, and Meteorological Monographs, by papers and discussions at meetings of the Society, through the offices of the Secretary and the Executive Secretary, and by correspondence. All of the Americas are represented in the membership of the Society as well as many foreign countries.


Pathfinder NDA/NA National Defence Academy & Naval Academy Entrance Examination

Pathfinder NDA/NA National Defence Academy & Naval Academy Entrance Examination

Author: Arihant Experts

Publisher: Arihant Publications India limited

Published: 2021-12-15

Total Pages: 1306

ISBN-13: 9325797968

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1. Pathfinder NDA/NA Entrance Examination - prescribed under UPSC Guidelines. 2. The Self Study Guide divides the entire syllabus in 4 Major Sections 3. Provides 5 Previous Years' Solved Papers for practice 4. More than 8000 MCQs for quick revision of topics 5. Chapterwise division of Previous Years' Questions. 6. Gives deep insight of the paper pattern, its types and weightage in the exam. Mark Twain once said, “Patriotism is supporting your country all time and government when it deserves it”. The Union services commission or UPSC has released the notification of about 413 seats for the NDA/NA exam 2022. Here comes the updated edition of the Pathfinder series “NDA/NA Entrance Examination” comprehensively complete syllabus of entrance examination as prescribed by UPSC. The book has been divided into chapters that are categorized under 4 major subjects; Mathematics, General English, General Science, General Studies providing a complete coverage. Each chapter of every section has been well explained with proper theories for better understanding. More than 8000 MCQs and Previous Years’ Solved Papers are providing a deep insight for examination patterns and types of questions asked in the exam. Chapterwise Division of Previous Years’ Solved Papers are provided with well detailed answers to clarify all the doubts. This book a must have for those who aim to score high for upcoming NDA/NA Exam. TOC NDA/NA Solved Paper 2021 – 2017 (I & II), , General English, General Science, General Studies.