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''The Feynman Lectures on Physics'' is a physics textbook based on some lectures by Richard P. Feynman, a Nobel laureate who has sometimes been called “The Great Explainer”. The lectures were given to undergraduate students at the California Institute of Technology (Caltech), during 1961–1963. The book's authors are Feynman, Robert B. Leighton, and Matthew Sands. The book comprises three volumes. The first volume focuses on mechanics, radiation, and heat, including relativistic effects. The second volume is mainly on electromagnetism and matter. The third volume is on quantum mechanics; it shows, for example, how the double-slit experiment contains the essential features of quantum mechanics. The book also includes chapters on mathematics and the relation of physics to other sciences. ''The Feynman Lectures on Physics'' is perhaps the most popular physics book ever written. It has been printed in a dozen languages.〔()〕 More than 1.5 million copies have sold in English, and probably even more copies in foreign-language editions.〔 A 2013 review in ''Nature'' described the book as having "simplicity, beauty, unity … presented with enthusiasm and insight".〔Phillips R. (5 December 2013), "The Feynman lectures on physics", ''Nature'', 504: 30-31.〕 In 2013, Caltech made the book freely available, on the web site (feynmanlectures.caltech.edu ). ==Background== By 1960, Richard Feynman’s research and discoveries in physics had resolved a number of troubling inconsistencies in several fundamental theories. In particular, it was his work in quantum electrodynamics that would lead to the awarding in 1965 of the Nobel Prize in physics. At the same time that Feynman was at the pinnacle of his fame, the faculty of the California Institute of Technology was concerned about the quality of the introductory courses for undergraduate students. It was felt that these were burdened by an old-fashioned syllabus and that the exciting discoveries of recent years, many of which had occurred at Caltech, were not being conveyed to the students. Thus, it was decided to reconfigure the first physics course offered to students at Caltech, with the goal being to generate more excitement in the students. Feynman readily agreed to give the course, though only once. Aware of the fact that this would be a historic event, Caltech recorded each lecture and took photographs of each drawing made on the blackboard by Feynman. Based on the lectures and the tape recordings, a team of physicists and graduate students put together a manuscript that would become ''The Feynman Lectures on Physics''. Although Feynman's most valuable technical contribution to the field of physics may have been in the field of quantum electrodynamics, the Feynman Lectures were destined to become his most widely read work. The Feynman Lectures are considered to be one of the best and most sophisticated college level introductions to physics.〔, (Extract of page 157 ) 〕 Feynman, himself, however, stated, in his original preface, that he was “pessimistic” with regard to the success with which he reached all of his students. The Feynman lectures were written “to maintain the interest of very enthusiastic and rather smart students coming out of high schools and into Caltech.” Feynman was targeting the lectures to students who, “at the end of two years of our previous course, () very discouraged because there were really very few grand, new, modern ideas presented to them.” As a result, some physics students find the lectures more valuable after they obtain a good grasp of physics by studying more traditional texts. Many professional physicists refer to the lectures at various points in their careers to refresh their minds with regard to basic principles. As the two-year course (1961–1963) was still being completed, rumor of it spread throughout the physics community. In a special preface to the 1989 edition, David Goodstein and Gerry Neugebauer claim that as time went on, the attendance of registered students dropped sharply but was matched by a compensating increase in the number of faculty and graduate students. Sands, in his memoir accompanying the 2005 edition, contests this claim. Goodstein and Neugebauer also state that, “it was () peers — scientists, physicists, and professors — who would be the main beneficiaries of his magnificent achievement, which was nothing less than to see physics through the fresh and dynamic perspective of Richard Feynman,” and that his "gift was that he was an extraordinary teacher of teachers". Addison–Wesley published a collection of problems to accompany ''The Feynman Lectures on Physics.'' The problem sets were first used in the 1962-1963 academic year and organized by Robert B. Leighton. Some of the problems are sophisticated enough to require understanding of topics as advanced as Kolmogorov's zero-one law, for example. Addison–Wesley also released in CD format all the audio tapes of the lectures, over 103 hours with Richard Feynman, after remastering the sound and clearing the recordings. For the CD release, the order of the lectures was rearranged from that of the original texts. (The publisher has released a table showing the (correspondence between the books and the CDs ).) In March 1964, Feynman appeared before the freshman physics class as a guest lecturer, but the notes for this lecture were lost for a number of years. They were finally located, restored, and made available as ''Feynman's Lost Lecture: The Motion of Planets Around the Sun.'' In 2005, Michael A. Gottlieb and Ralph Leighton co-authored ''Feynman's Tips on Physics,'' which includes four of Feynman's freshman lectures not included in the main text (three on problem solving, one on inertial guidance), a memoir by Matt Sands about the origins of the ''Feynman Lectures on Physics,'' and exercises (with answers) that were assigned to students by Robert B. Leighton and Rochus Vogt in recitation sections of the Feynman Lectures course at Caltech. Also released in 2005, was a "Definitive Edition" of the lectures which includes corrections to the original text. An account on the history of these famous volumes is given by Sands in his memoir article “(Capturing the Wisdom of Feynman )”, ''Physics Today'', Apr 2005, p. 49.〔See also: Welton, T.A., “(Memory of Feynman )”, ''Physics Today'', Feb 2007, p.46.〕 In September 13, 2013, in an email to members of Feynman Lectures online forum, Gottlieb announced the launch of a new (website ) by Caltech and The Feynman Lectures Website which offers "() free high-quality online edition" of the lecture text. To provide a device independent reading experience, the website takes advantage of modern web technologies like HTML5, SVG, and Mathjax to present text, figures, and equations in any sizes while maintaining the display quality.〔Footnote on homepage of website ''The Feynman Lectures on Physics''.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「The Feynman Lectures on Physics」の詳細全文を読む スポンサード リンク
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