But it was Fun

But it was Fun PDF Author: Felix J. Lockman
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 606

Get Book Here

Book Description

But it was Fun

But it was Fun PDF Author: Felix J. Lockman
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 606

Get Book Here

Book Description


Open Skies

Open Skies PDF Author: Kenneth I. Kellermann
Publisher: Springer Nature
ISBN: 3030323455
Category : Astronomy
Languages : en
Pages : 652

Get Book Here

Book Description
This open access book on the history of the National Radio Astronomy Observatory covers the scientific discoveries and technical innovations of late 20th century radio astronomy with particular attention to the people and institutions involved. The authors have made extensive use of the NRAO Archives, which contain an unparalleled collection of documents pertaining to the history of radio astronomy, including the institutional records of NRAO as well as the personal papers of many of the pioneers of U.S. radio astronomy. Technical details and extensive citations to original sources are given in notes for the more technical readers, but are not required for an understanding of the body of the book. This book is intended for an audience ranging from interested lay readers to professional researchers studying the scientific, technical, political, and cultural development of a new science, and how it changed the course of 20th century astronomy.

NgVLA

NgVLA PDF Author: Eric James Murphy
Publisher:
ISBN: 9781583819197
Category : Discoveries in science
Languages : en
Pages : 830

Get Book Here

Book Description


Astrochemistry

Astrochemistry PDF Author: Olivia Harper Wilkins
Publisher: American Chemical Society
ISBN: 0841299129
Category : Science
Languages : en
Pages : 245

Get Book Here

Book Description
The answers to some of the most fundamental questions in science lie between the stars, in molecular clouds that serve as celestial laboratories. Disentangling the chemistries in extraterrestrial environments can provide clues about how planets form and shed light on problems in terrestrial chemistry that are difficult to investigate in the lab, and even the origins of life. Astrochemistry takes you on a tour of the molecular universe through time and space, starting with the emergence of matter about 13.8 billion years ago. From there, the tour visits the interstellar medium, with an emphasis on molecular clouds where stars are born. It then goes through different evolutionary stages of stars and planets – and the chemistry that emerges alongside them – before ending in our own solar system, where you will learn about chemical delivery by objects such as comets and meteorites.

Essential Radio Astronomy

Essential Radio Astronomy PDF Author: James J. Condon
Publisher: Princeton University Press
ISBN: 069113779X
Category : Science
Languages : en
Pages : 376

Get Book Here

Book Description
The ideal text for a one-semester course in radio astronomy Essential Radio Astronomy is the only textbook on the subject specifically designed for a one-semester introductory course for advanced undergraduates or graduate students in astronomy and astrophysics. It starts from first principles in order to fill gaps in students' backgrounds, make teaching easier for professors who are not expert radio astronomers, and provide a useful reference to the essential equations used by practitioners. This unique textbook reflects the fact that students of multiwavelength astronomy typically can afford to spend only one semester studying the observational techniques particular to each wavelength band. Essential Radio Astronomy presents only the most crucial concepts—succinctly and accessibly. It covers the general principles behind radio telescopes, receivers, and digital backends without getting bogged down in engineering details. Emphasizing the physical processes in radio sources, the book's approach is shaped by the view that radio astrophysics owes more to thermodynamics than electromagnetism. Proven in the classroom and generously illustrated throughout, Essential Radio Astronomy is an invaluable resource for students and researchers alike. The only textbook specifically designed for a one-semester course in radio astronomy Starts from first principles Makes teaching easier for astronomy professors who are not expert radio astronomers Emphasizes the physical processes in radio sources Covers the principles behind radio telescopes and receivers Provides the essential equations and fundamental constants used by practitioners Supplementary website includes lecture notes, problem sets, exams, and links to interactive demonstrations An online illustration package is available to professors

Working Papers

Working Papers PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309043832
Category : Science
Languages : en
Pages : 347

Get Book Here

Book Description
This volume contains working papers on astronomy and astrophysics prepared by 15 non-National Research Council panels in areas ranging from radio astronomy to the status of the profession.

An Introduction to Radio Astronomy

An Introduction to Radio Astronomy PDF Author: Bernard F. Burke
Publisher: Cambridge University Press
ISBN: 1107189411
Category : Nature
Languages : en
Pages : 545

Get Book Here

Book Description
A thorough introduction to radio astronomy and techniques for students and researchers approaching radio astronomy for the first time.

Integrated Modeling of Telescopes

Integrated Modeling of Telescopes PDF Author: Torben Andersen
Publisher: Springer Science & Business Media
ISBN: 1461401496
Category : Science
Languages : en
Pages : 555

Get Book Here

Book Description
Ground- or space-based telescopes are becoming increasingly more complex and construction budgets are typically in the billion dollar range. Facing costs of this magnitude, availability of engineering tools for prediction of performance and design optimization is imperative. Establishment of simulation models combining different technical disciplines such as Structural Dynamics, Control Engineering, Optics and Thermal Engineering is indispensable. Such models are normally called Integrated Models because they involve many different disciplines. The models will play an increasingly larger role for design of future interdisciplinary optical systems in space or on ground. The book concentrates on integrated modeling of optical and radio telescopes but the techniques presented will be applicable to a large variety of systems. Hence, the book will be of interest to optical and radio telescope designers, designers of spacecrafts that include optical systems, and to designers of various complex defense systems. The book may also find use as a textbook for undergraduate and graduate courses within the field. "Adaptive Optics" is an exciting and relatively new field, originally dedicated to correction for blurring when imaging through the atmosphere. Although this objective is still of high importance, the concept of Adaptive Optics has recently evolved further. Today, the objective is not only to correct for atmospheric turbulence effects but also for a range of static and dynamical telescope aberrations. The notion of adaptive optics has expanded to the field of "Wavefront Control", correcting for a variety of system aberrations. Wavefront control systems maintain form and position of optical elements with high precision under static and dynamical load. In many ways, such systems replace the steel structures of traditional optical systems, thereby providing much lighter systems with a performance not possible before. Integrated Modeling is the foremost tool for studies of Wavefront Control for telescopes and complex optics and is therefore now of high importance. Springer has recently published two books on telescopes, "Reflecting Telescope Optics" by R. Wilson, and "The Design and Construction of Large Optical Telescopes" by P. Bely. Noting that a new (and expensive) generation of Extremely Large Telescopes with apertures in the 30-100 m range is on the way, the present book on integrated modeling is a good match to the existing books and an appropriate specialization and continuation of some subjects dealt with in those books.

Reflectionless Filters

Reflectionless Filters PDF Author: Matthew A. Morgan
Publisher: Artech House
ISBN: 1630814059
Category : Technology & Engineering
Languages : en
Pages : 277

Get Book Here

Book Description
This invaluable resource introduces progressive techniques for the creation of sophisticated reflectionless filter topologies that have identically zero reflection coefficient at all frequencies. Practical implementations are discussed along with their advantages when compared to classical absorptive filters and their benefits in real-world systems such as up/down converters, multiplier chains, broadband amplifiers, analog-to-digital converters, and time-domain applications. This book offers insight into the innovative process of developing reflectionless filters from first principles using both lumped elements and transmission lines. Tools for the creation of reflectionless multiplexers, matched sloped equalizers, and advanced, high-order, and nonplanar topologies are also presented.

Reprints - National Radio Astronomy Observatory, Green Bank, W. Va

Reprints - National Radio Astronomy Observatory, Green Bank, W. Va PDF Author: National Radio Astronomy Observatory (U.S.)
Publisher:
ISBN:
Category : Astronomy
Languages : en
Pages : 422

Get Book Here

Book Description