Commentaires client les plus utiles sur Amazon.com (beta)
Amazon.com:4.4 étoiles sur 5 41 commentaires
44 internautes sur 47 ont trouvé ce commentaire utile
4.0 étoiles sur 5Good Reference Source for Students, Engineers and Educators7 mars 2003
Par L. S. Fischer - Publié sur Amazon.com
While working for NASA/JPL back in the 1970's and 80's, I first used this book as a reference source while doing engineering support for radio astronomy experiments. I recall at the time wishing I'd know of the book a few years earlier while still at the Univ. of Arizona; while a student I would have found plenty of use for it. Recently I have returned to academia, and find myself making use some of its material for by my lower-division astronomy students. I've come to depend on it for its clearly-written explanations of the various coordinate systems, reference frames and obital dynamics. And I especially like the way it introduces n-body problems and the how they are affected by perturbations. For myself I even make some use of it when doing calindrical calculations. It is among a handful of reference sources that I find almost continuously useful in so many applications.
32 internautes sur 35 ont trouvé ce commentaire utile
4.0 étoiles sur 5Some topics omitted, but still a good book23 novembre 2002
Par Dr. Lee D. Carlson - Publié sur Amazon.com
This book is a fairly complete overview of planetary mechanics, at least from the standpoint of the Newtonian formulation of the problem, for the authors do not use Lagrangian or Hamiltonian methods. The use of Hamiltonian formulation, via phase space constructions, sheds considerable light on the two-body and the N-body problems, but the reader interested in Hamiltonian mechanics will have to look elsewhere. Also, the authors do not discuss the presence of chaotic dynamics in orbital mechanics, nor are integrability issues discussed. In addition, the current debate over modifications of Newtonian mechanics is not included in the book, due to its time of publication. But if one wants a practical introduction to Newtonian orbital mechanics that also addresses numerical issues, this would be a good book to begin with. I would recommend the use of a symbolic programming language, such as Mathematica or Maple, to assist in the visualization of the orbits and in the routine computations if one were to use this book as an aid to teaching orbital mechanics. Another good feature of the book is the interjection of historical background and anecdotes at various places in the book. For example, one learns that it was Edmund Halley who was primarily responsible for bringing Newton's discoveries to the world. Newton's work remained idle for twenty years until Halley encouraged Newton to publish his explanation of planetary motion. The mechanics as outlined in this book is timeless and will continue to be learned by future generations of students as they take up the reigns of human exploration beyond the Moon to the entire solar system.
20 internautes sur 21 ont trouvé ce commentaire utile
4.0 étoiles sur 5Considered a GNC handbook by Air Force space types22 juillet 1999
Par Un client - Publié sur Amazon.com
Ran into this one in grad school; has an excellent treatment of vector calculus in the appendix. Get this one if you are into orbital mechanics, guidance and nav. It's a short paperback type of book, easy to cart around in a briefcase. All steely-eyed missile men have this one.
12 internautes sur 12 ont trouvé ce commentaire utile
4.0 étoiles sur 5An excellent introductory text to the subject21 juin 1998
Par Un client - Publié sur Amazon.com
This work was written by three instructors at the USAF Academy for use as a textbook. It provides an excellent introduction to astrodynamics. A knowledge of calculus and linear algebra is required, but the derivations are quite reasonable. The diagrams are also very good, enabling the reader to visualize complex spatial orientations. The book's only weakness is its age. Several real-world examples are out-of-date, and the numerical analysis techniques do not reflect the current state-of-the-art. Nevertheless, this is the best book to start learning astrodynamics, and gives a solid foundation from which to study more advanced texts.
10 internautes sur 10 ont trouvé ce commentaire utile
4.0 étoiles sur 5Good Textbook in need of an overhaul22 décembre 2000
Par Craig Remillard - Publié sur Amazon.com
This book, the last word on astrodynamics (and the first, incidentally), covers every aspect of orbital mechanics, from Newton's gravitational equation to launch to transfer orbits to aberrational effects. It is clear and thorough. My only caveat is that it its old. A new edition done with the aid of computers, color ink, and more contemporary exercises would go a long way towards clearer understanding.