Used price: $9.95
Buy one from zShops for: $14.99
I just don't understand why Amazon doesn't mention the inclusion of the Keyboard Cover ? It would have made my decision process much easier.
Joelle
List price: $19.95 (that's 30% off!)
Used price: $14.74
Buy one from zShops for: $13.92
Within two weeks people were enjoying my playing.That was a good feeling.
List price: $13.95 (that's 20% off!)
Used price: $1.52
Collectible price: $8.95
Buy one from zShops for: $5.97
"1. The Constitution: 'Establishes the separation of powers . . . so that no one person can grab all the power . . . And it made for a pretty peppy 'Schoolhouse Rock' tune.'"
Yeah. Ha-ha. Chortle guffaw. This stuff's supposed to be funny? Get a PJ O'Rourke book, instead. Aside from a not all that funny list, the guys can't even avoid politicizing the thing, or offending we parrotheads - Jimmy Buffett is listed in an apologetic list about "Why We..."(can't be too offensive to our allies can we?), as are the death penalty and Kenneth Starr.
Oh well, I'm gunna go get drunk and...
List price: $12.95 (that's 20% off!)
Used price: $8.00
Buy one from zShops for: $4.95
Used price: $28.75
Collectible price: $28.75
Buy one from zShops for: $25.88
Used price: $0.99
Collectible price: $27.80
The very metaphor that Cohen bases his book on in the first chapter is all about details as well. Camella Teoli, decided to leave details out of her story to her children. Her daughter who combed her hair everyday didnÕt know why she had a bald spot; she just knew it was there. Camella deeming her safety and social acceptance more important always left the historical facts of her industrial accident out of reach. However it was eventually through combing back through history that the incident was brought to memory again. In this way she combed over the details and later historians and others combed them back up according to their differing values. Of course Cohen himself cannot escape the selecting, judging and combing over that take place in writing his history. It is impossible to record everything so he records what is most meaningful to him and valuable to his argument.
Deciding what is important to us or what details we wish to remember often isnÕt a conscious choice. When listening to someone speak a foreign tongue, the words you will pick out and understand are those you have previously studied or those you have somewhat of a background in. In this way we have been accustomed or programmed to hear only certain things and until we change the programming we wonÕt hear or wonÕt understand other words or details. While this isnÕt necessarily a bad thing, it is something that leaves information behind and something that happens to everyone. Reading history is the same way. Those individuals who are natives to an area or have an extended background in a certain topic will bring an entirely different analysis than an outsider or newcomer will bring. Cohen outlines several examples of history being read differently due to background disparities.
Cohen believes, and I am also convinced that Òthe social recomposition of collective history requires the intervention of the stranger;Ó it is ok for the historian to be viewed as a Òstranger." It is also ok to listen to the voice which is native to the area of historical research. Cohen throughout the book points us to the way in which official constructions of history have formed the ways we think about the past. They may be pageants, movies, books, recreations, parades, etc. Even official versions leave out detail that individual and cultural analysis can comb out. I believe Cohen would tell us that the ÒglossingÓ of texts, the use of culturally Ònuanced vocabularies,Ó and the historical projects across the world are really a search and a move for voice and identity in history. No matter why, where, or how this ÒreadingÓ and ÒwritingÓ of history takes place it is to our advantage to listen up and ÒrememberÓ our own details of interest from these stories. This is where the combing of history begins.
Even though I have combed over much of what this book has to offer, my own personal combing through the text to write this piece has brought to my knowledge many viewpoints and perspectives I never thought possible.
Used price: $2.90
Collectible price: $6.95
Buy one from zShops for: $14.96
Pictures vary from Gorbachev himself to workers at a collective in central Russia. Importantly, this book shows how many nationalities of Soviet (Russian Speaking) citizens lived in harmony under the communist system. The reader is taken aback by the simple, even primitive lifestyles of the people. Yet remember, in this society there was no pressure to invest in volatile markets or fear of being laid off without pay. Most people lived under the assumption that the state would provide for them. See if you can notice this feeling in the pictures! This is a good look back at their lives. Enjoy!
Used price: $51.99
Buy one from zShops for: $55.36
This is followed by an elementary introduction to Hilbert space in Chapter 2. This is standard material and most of the proofs of the main results are omitted and left to the reader as projects.
Chapter 3 is more controversial, and attempts to formulate a logic of experimentation for "non-classical" systems. This is done by use of what the author calls a "manual", which is viewed as an abstraction of the experimenters knowledge about a physical system. A manual is a collection of experiments, and an "event" is a subset of an experiment. Orthogonality of events is defined, along with the notion of a collection of events being "compatible", meaning that there is an experiment that contains all of these events. A manual is called "classical" if every pair of events is compatible. The author then exhibits systems that are not classical via the double-slit and Stern-Gerlach experiments. A logic of events is then developed in the next section, where quantum logic is defined explicitly. The author defines a pure state that is not dispersion-free as a state of ontological uncertainty as opposed to "epistemic" uncertainty. Quantum systems have states that are ontologically uncertain according to the author. The author chooses not to engage in the debate about the actual existence of these states and, accordingly, no real-world experiments are given to illustrate the relevance of the concepts and definitions.
The next chapter covers the geometry of infinite-dimensional Hilbert spaces. The structure of the collection of these subspaces is defined in terms of the quantum logic defined earlier. This is followed by a discussion of maps on Hilbert spaces, as preparation for defining observables in quantum systems. The important Riesz representation theorem is stated but the proof left to the reader. Projection operators are defined also with the eventual goal of relating them to the compatibility of two propositions.
Gleason's theorem is discussed in Chapter 6, along with a discussion of the geometry of state space. The proof of Gleason's theorem is omitted, the author emphasizing its difficulty. The proof in the literature is non-constructive and thus the theorem is suspect according to some schools of thought.
The spectral theorem, so important in quantum physics, is discussed in the next chapter. Once again the proofs are left to the reader for most of the results. The spectral theorem allows the author to define another notion of compatibility in terms of the commutativity of two Hermitian operators.
The books ends with a overview of the EPR dilemna and is naturally more controversial than the rest of the book. This topic has provoked much philosophical debate, and the author gives the reader a small taste of this in this chapter.
The book does serve its purpose well, and regardless of one's philosophical position on quantum physics, the mathematical formulations of quantum physics and measurement theory are nicely expounded in this book.
However, this book is very focused on the Cessna 182 (It makes me believe I can pilot a real one now :)), and fails somehow on the comercial jets, specially in terms of the landing process. In terms of teaching IFR flying, again it is excellent for propeller planes, but it disapointed me on the comercial planes.
But still it is a very good book, and I would surelly buy it again.