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Used price: $23.64
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Vincenti cites several examples from the aeronautics industry. While these descriptions take on an anecdotal character, these collected narratives nonetheless impose his conclusion as well as any philosophical essay could and probably better. In each case, _What_Do_Engineers_Know_?_ demonstrates that incomplete information may yield intermediate results having little or no effect on the intended problem.
The first example relates to a wing design for the B-24. The history of the Davis airfoil design is explained, as well as its incorporation for the B-24 wing. At the time of its adoption, various airfoil shapes had been investigated, and the Davis form subsequently was found to resemble the high performance laminar-flow airfoil. But did this form benefit the B-24 performance. Probably not, answers the author. Laminar flow can be difficult to maintain at the Reynolds numbers typical of modern aircraft, particularly in wartime conditions when surface roughness will likely increase tripping the boundary layer to turbulent (with resulting increased drag -- laminar flow has a thinner boundary layer, but is more prone to flow separation). The B-24 was considered a fine aircraft, in part due to its wing length.
The second example describes flying-quality characteristics and relative design priorities regarding stability and control. (The Wright brothers had emphasized stability in the infancy of manned powered flight.) Designers had to determine what characteristics made an airplane desirable to pilots, and which would consign them to the scrapyard. This ergonomic study evolved as pilot and aircraft capabilities expanded in speed and flight duration. An appendix provides qualitative criteria used to compare stability performance.
The third example compares how thermodynamics is treated by physicists and engineers. The latter employ control volume analysis as developed by Ludwig Prandtl for economy and accuracy rather than the understanding of nature governing thermal energy transfer. The fourth example covers data collection for airplane propellers. Subtle changes in camber, pitch and twist in a design can have subtle or profound effects on efficiency. These were evaluated using empirical studies, in contrast to a more analytical treatment where the contributing second and third order effects are more difficult to distinguish. The fifth example explains the struggles in riveting thin metal sheets with countersunk joints for aircraft production. The establishment of standard head angles required more detailed material behavior for both rivets and attaching sheets than previously known.
Finally Vincenti concludes with a synthesis on how design knowledge develops from functional collections of information. The writing style can be tedious at times, and other times smooth, but this is a matter of personal taste for the reader. While a typical engineer may find some aspects of the work, particularly among the examples, more familiar than other chapters, it nonetheless remains a beneficial insight into how engineering knowledge is acquired, organized and utilized to address the concern at hand.
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Vincenti describes how aeronautics technologies grew and went through their stages, and this has given me insight into my own. This is not a book of idealized process for implementing technology. It is s set of historical case studies, some of which Vincenti himself participated in, others of which he researched.
The book is not easy to read, but I have found it very rewarding. It is full of technical terms and heavy technology. At the same time, if you pay the price in effort and study this book carefully, you will not be disappointed. You will see how technologies develop, and knowing this, you will be able to anticipate developments and needs in your own area of growth.
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Used price: $11.40
Collectible price: $18.00
Buy one from zShops for: $18.85
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What makes this book worth reading to the student of Modern European History, is not only Goodrick-Clarke's ability to link these movements to Nazi philosophy, but his attention to detail. Further, he carefully explains the historical surroundings and mystical, sometimes ludicrous, beliefs held by members of the various Ariosophical societies.These explanations, coupled with what must have been very tedious research, enlighten these somewhat obscure and often forgotten influences on the NSDAP.
This book is well worth a read. However, its appeal is somewhat limited to those with particular interest in the occult
philosophy sub-genre of Nazi Studies. By no means is it a typical Shirer inspired playscript of the Reich.
TAB
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His new book Black Sun is like part II of The Occult Roots of Nazism. He talks about the Pagan Revival after WWII and all the new ideas and people in the movement. These two books should be read together.
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Used price: $2.50
Collectible price: $12.66
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Dr. Jekyll and Mr. Hyde is one of those stories, like Frankenstein and Dracula, that seemingly everyone has heard of and believes they understand("mythopoetic " in the language of Joyce Carol Oates). Much like the aforementioned works, the actual details of the story may come as a surprise to those who assume they know the story based solely on the popular understanding. For that reason alone I think the book is worth reading.
Dr. Jekyll is a respected if somewhat reclusive London doctor who has, through the course of years of experimentation, managed to create a solution which brings to the fore his evil alter-ego. Unlike many gothic literary villains, Hyde is not imbued with superhuman strength or exceptional gifts of any kind. In fact he is of a smaller and less imposing stature than most men. What he does possess however is a complete lack of compunction with regards to others. Hyde for example ruthlessly runs down a small child who gets in his way. As is the case with Frankenstein, Dr. Jekyll creates something that he can't control and which eventually destroys its creator.
The inhumanity that the fictional Hyde displays can be seen in the non-fictious world on a daily basis. As such, there is a realism to the story which is missing from many horror stories past and present. The fact that such a short and captivating work exists in an attractively packaged edition makes this one classic that will be a joy to read for all.
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He uses a very wide range of vocabulary. Stevenson uses many 19th Century terms that seem weird and different to me.
One thing bad about his writing is his punctuation. He uses way too many semicolons and comas. He makes one sentence out of six or seven sentences.
This book was not the best book I ever read, but was not the worst either. it was mediocre. however It was miles ahead of Dracula. Dracula is boring, whereas Dr. Jekyll and Mr. Hyde is fast paced, quick, and fun to read. its pritty morbid which is kind of a down side, but Since it is very short it is a good book on my list.
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Joyce Carol Oates's introduction is worthwhile, especially for those readers who know the story, as most English-speaking people do, in its basic framework, but who have not yet actually traveled the dark road with Dr. Jekyll and his friends.
It is a pleasure to read a classic book in such a carefully crafted edition. Too often books such as this are printed in cheap editions with narrow margins and lousy type; this one fits comfortably in the hand and is easy on the eye as the reader is drawn into this allegorical nightmare.
This review refers to the University of Nebraska Press edition only.
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Used price: $53.75
Collectible price: $137.97
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The first half of the book is an introduction to the language and the second half applications loosely connected to the Internet.
The language is worth knowing, but I'd have liked a book with exercises.
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Used price: $45.02
Collectible price: $37.06
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Used price: $112.38
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Used price: $5.41
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List price: $18.00 (that's 30% off!)
Used price: $10.80
Buy one from zShops for: $12.04
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List price: $19.95 (that's 30% off!)
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Buy one from zShops for: $9.95
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Areas Covered: Florence, Arezzo, Casentina, Lunigiana, Garfagnana, Versilia, Pisa, Livorno, Chianti, Siena, Montalcino, Sienese Crete, Maremma and Monte Amiata.
There is a detailed description of the best times to visit, with a special section on the foods grown in various areas.
I would suggest that this is more about food than anything else. There is a "Travelers' Needs" section which tells you where you can sleep before waking the next day to continue your journey into the land of food.
So, if you want to find the best wines, olive oils, cured meats and cheeses, this
might be the book you are looking for.
When they say "TASTE" they mean it.