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Candid comments about his own observations.Review Date: 1998-09-11
A delightful Civil War autobiographyReview Date: 2002-09-13
Written at the suggestion of his wife while he recovered from an illness, the general gives a ground level view of the war as a young soldier. Although privy to many decisions made by his superiors, he was not in on the decision making. Sometimes there is a certain naivete about his observances.
This more personal view of the battles and times between would be of interest to any student of the Civil War. It is a valuable story, if only for his view of the controversial Longstreet.
Excellent memoir of a soldier's lifeReview Date: 2004-10-15


Professor EinsteinReview Date: 2000-04-28
Two Fascinating Lectures - Will Appeal to Physics StudentsReview Date: 2004-07-31
Ether and the Theory of Relativity, an address delivered on May 5, 1920 at University of Leyden:
Einstein recounts how the concept of ether originated and subsequently evolved. After some discussion of work by Hertz, Maxwell, Lorentz, and Mach, he notes that it became possible to take a position that ether does not exist. However, using an analogy of water waves, he explains that although the special theory of relativity does forbid us to assume ether consists of particles observable through time, the hypothesis of ether in itself is not in conflict with the special theory of relativity. Only we must give up ascribing a motion to it.
While it may seem superfluous to postulate a homogeneous, isotropic, ether-medium, Einstein contends that to deny the ether is ultimately to assume that empty space has no physical qualities at all. He then argues that according to his General Theory of Relativity "empty space" in its physical relation is neither homogeneous nor isotropic, compelling us to describe its state by ten functions (the gravitational potentials). There can be no space or part of space without gravitational potentials.
After noting that elementary particles may be considered condensations of electromagnetic fields, he concludes that our current view of the universe presents two realties which are completely separated from each other conceptually, although connected casually, namely gravitational ether and electromagnetic field, or as they might be called, space and matter.
Geometry and Experience - an expanded form of an address to the Prussian Academy of Sciences in Berlin on January 27, 1921:
Einstein begins by posing and answering why mathematics, a product of human thought, is so admirably appropriate to describing reality. In exploring limitations associated with applying Euclidian geometry to relations between rigid bodies, Einstein introduces other axiomatic systems, including Riemann's geometry. He argues that there are difficulties in applying geometry on the sub-molecular level, but it is less problematical to extend the ideas of geometry to cosmic orders of magnitude.
After some clarification of the meaning of a finite universe and an infinite universe, he devotes several pages to illustrating how to visualize a finite, three dimensional universe that is unbounded. Einstein concludes this lecture with an enthusiastic comment: "My only aim today has to show that the human faculty of visualization is by no means bound to capitulate to non-Euclidian geometry."
Experience vs HypothesisReview Date: 2000-05-24
At this point, I will say that my understanding stands at a finite point in which it would be only arrogant for me to claim I understood the entirety of the book. Nonetheless, I found this book completely readable, mostly due to the fact that there are no formulas to follow. My knowledge of relativity is limited and I have given you what I believe I understand. Its a short book with the writing clear and concise and logical; which surprised me hearing stories about Einsteins genius in which he is unable to explain in laymans terms. Highly reccomended!

Cameron JuddReview Date: 2003-12-02
A MUST READ!Review Date: 2000-02-17
EXCELLENT BOOK!!!Review Date: 1998-09-11


A New England boyhoodReview Date: 2005-02-19
a must-read for Tom Sawyer fans!Review Date: 2000-07-29
Adventures and tribulations of a mischieveuos boy.Review Date: 1999-08-04

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Move Over Harry PotterReview Date: 2001-11-18
The Very BestReview Date: 2001-11-16
Taminor Rocks!!!Review Date: 2001-11-26

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Fiber optic testingReview Date: 2008-01-19
All about OTDRs and much moreReview Date: 2004-11-18
At the time (1997) we were engineers at Tektronix, in the company's Cable and Network Analysis division. In 1997, Tektronix was a major producer of OTDRs, and our book was the first single-source handbook describing optical time-domain reflectometers (OTDRs). Tektronix sponsored our work in writing the book, and published and distributed it worldwide.
At the time, worldwide investment in fiber-optic networks was expanding in double digits, and Tektronix was one of the top manufacturers of OTDRs, responsible for both their early innovation and development of several key technologies. Neither of us could have anticipated the dramatic changes that would take place in the next six years. While fiber optics proceeded at a steady and respectable pace during most of the 1990s, the industry exploded in irrational exuberance near the turn of the century as part of the telecom bubble, only to be followed by a deep depression that would see many companies, including Tektronix, abandon key business sectors devoted to optical telecom by the end of 2003.
Through these tumultuous times, the OTDR continued its remarkable evolution, resulting in today's machines, which are considerably smaller, faster, more capable, and less expensive than their earlier predecessors. The evolution of OTDRs has been driven largely by the widespread use and deployment of optical fiber, and the need to put high-powered test capability into the hands of the optical technicians that engage daily in installing, maintaining, and repairing these networks. The days of optical engineers doing field tests with bulky $35,000 OTDRs are gone forever.
It is because of the dramatic changes in the markets and science of OTDRs that a second edition is needed. Furthermore, the widespread use of OTDRs necessitates publishing and distributing the book in a manner that makes it more widely available to field technicians as well as engineers. These changes also demand a new title that reflects a broader theme to the book and goes beyond simply testing with OTDRs to address broader issues surrounding fiber-optic networks in general, and how to keep them working properly.
Because OTDRs have evolved from difficult-to-use, specialized equipment to ubiquitous mainstay status, we found the book required additional contributions from a third author. Larry Johnson, owner and founder of The Light Brigade, was the obvious choice. Larry's company is a leading training organization with nearly two decades of experience teaching technicians how to use OTDRs in the field to install, maintain, and repair fiber-optic networks. He has an intimate knowledge of the challenges and needs of the technician that are unmatched in the industry, as well as a high degree of familiarity with different OTDR manufacturers their products and related fiber optic standards.
As with the first edition, our objective in writing this book is go beyond a simple handbook that discusses operational procedures such as cursor placement and waveform interpretation. While we do cover these topics, we also explain more esoteric subjects and give insight into the technical nuances of OTDRs that enable non-traditional OTDR measurements such as mode-field diameter, cut-off wavelength, and polarization mode dispersion. We also dedicate considerable attention to measurement errors and how to estimate them. This, especially, is a subject with which all OTDR users should be quantitatively familiar. As a part of this, we have devoted a chapter to event-marking software, which was the key innovation that resulted in OTDRs being readily used by field technicians.
Our target audience is practicing engineers, system technicians, and field technicians. We have constructed each chapter so that, for the most part, simpler concepts and ideas are discussed first, followed by concepts of increasing difficulty as the chapter progresses. The level of difficulty varies. When this happens, we try to warn the reader that the level of difficulty may rise but subside in succeeding sections. We have also added a short quiz at the end of each chapter so that the book can be used in the classroom as a text, or for self-study.
The book makes full use of mathematical equations and detail which are used liberally throughout the text. These are intended to provide quantitative support for many of the book's central points. Though we use them unabashedly, most of the equations are summaries, with few derivations, and involve only algebra or elementary calculus. Where appropriate, we use diagrams and text that illustrate ideas embedded within the equations so that full command of the mathematics is not necessary to obtain an intuitive feel for the subject being discussed. For the most part, the book can be read and the key points understood without having to understand the mathematical equations. For those who want to delve a little deeper, however, the mathematics opens the door to understanding OTDRs at a level of detail that should appeal to design engineers.
We hope this book serves as a useful desk reference, and provides value even if not read cover-to-cover. Toward this end, we have included a detailed table of contents, glossary of terms, glossary of mathematical variables, and a detailed index.
A good addition to the technical bookshelfReview Date: 2005-06-28
So, I guess now I have to review this book the title of which is "Troubleshooting Optical Fiber Networks, Understanding Your Optical Time Domain Reflectometer". First, a little background on OTDRs. This was one of the first fiber optic test instruments introduced commercially 24 years ago and is still evolving and one of the most commonly used. Basically an OTDR shoots a pulse of light into the fiber and monitors the reflections. From this measurement, the user can tell whats happening in a fiber network many kilometers downstream from where the measurement is made. For example, you can tell that there is break in the fiber 5.4 km from where you are. This is very useful information if you are troubleshooting or commisioning a fiber optic installation.
This book is very good in that it was written by two scientists from Tektronix, Duwayne Anderson and Florian Bell, who have intricate knowledge of all the technical aspects, and by Larry Johnson, who is very familiar on how users interact with the instrument and what kind of information would be useful to them. This combination produced a book that is very readable but also provides enough meat for an engineer or a scientist.
The book starts with an short history of the OTDR, moves on to a basic tutorial of fiber optics and then dives in to the various technical aspects of the insides of anOTDR. The second part of the book focuses on the various types of measurements that can be made with the OTDR and finally finishes up with some advice on selecting the appropriate OTDR, since they come in many flavors. The book can be used in several different ways. If you want a crash course on OTDRs, as I did, this is a very good place to start. Also, it functions as a good reference that you keep on the bookshelf. Finally, its a good textbook for a course on OTDRs aimed at technicians or even engineers, since it has ample references and study questions at the end of each chapter. As an added bonus, there is a training CD from the Light Brigade included with the book that provides some good videos on how an OTDR is used in the field.

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Magical twist on old favorite!Review Date: 2008-08-25
Magical artwork!Review Date: 2007-08-29
SpectacularReview Date: 2007-08-28

Collectible price: $25.00

Great bookReview Date: 2003-10-24
Unfortunatley, something happened to my copy of the book, and I'm going to have to search for a new copy. Let's hope they'll publish this again!
JUST WHERE IS THIS BOOK?Review Date: 2000-06-12
Me Too!Review Date: 2000-07-20


Wonderful, Wonderful, WonderfulReview Date: 2008-03-20
Wonderful Book! Teaches Great Christian Values!Review Date: 1998-10-04
Jane Tompkins calls WWW the Ur text of the 19th century.Review Date: 1997-02-24
Its heroine, Ellen Montgomery, is her mother's sole companion, confidante, and spiritual prodigy. Ellen's father wisks the mother away under the pretense of taking her to a climate more favorable to her health. Her mother's last words to Ellen are "We must endure, but we must not rebel." Ellen is sent to her father's sister's house in the country. Miss Fortune is a pragmatic independent manager of a small farm. She takes Ellen in though she was not told of Ellen's coming. Ellen's
sensibilities are crushed by Miss Fortune's lack of sympathy
for Ellen's tastes. Ellen will find friends in the more genteel and conventionally religious neighbors, Alice and John Humphreys, who agree that Ellen would make a good wife for John when she grows up. Ellen's foil is the "wild girl" Nancy Vawse who roams the countryside and turns up to torment Ellen with her rough ways. When Ellen reaches her teens, she learns some very surprising news which precipitates a trip to Scotland. The intensly emotional and high-strung Ellen who "conquers her will" represents everything contemporary psychology and feminism denounce.

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Comprehensive OverviewReview Date: 2000-09-05
Very Useful!Review Date: 2000-06-13
Excellent Beginning SourceReview Date: 2000-02-21
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He makes it very clear throughout the book that his observations are his own and may be flawed when viewed historically (and some are).
Very easy reading -- not a lot of Victorian memorializing and generally flows well. A real good book for the beginner or historian alike.