This second edition of the successful textbook, Modern Physics: An Introductory Text, preserves the unique blend of readability, scientific rigour and authenticity that made its predecessor so indispensible a text for non-physics science majors. As in the first edition, it sets out to present 20th century physics in a form accessible and useful to students of the life sciences, medicine, agricultural, earth and environmental sciences. It is also valuable as a first reader and source text for students majoring in the physical sciences and engineering. Two new chapters have been added, one on Einstein's elucidation of Brownian Motion and the second on Quantum Electrodynamics.Taking the discovery of the electron, the formulation of Maxwellian electromagnetism and Einstein's elucidation of Brownian motion as its starting point, the text proceeds to a comprehensive presentation of the three seminal ideas of 20th century physics: Special and General Relativity, Quantum Theory and the Nuclear Atom. From here the text moves on to the new discoveries prompted by these ideas, their impact on our understanding of natural phenomena and their application to the development and invention of the devices and technologies that define the 21st century.Questions, exercises and problems for student assignments are found at the end of each of the six parts into which the text is divided; answers to the numerical questions are at the end of the book. The techniques by which trigonometric functions, phasors (rotating vectors) and complex numbers are employed in the mathematical description of wave motion are summarised in a supplementary section. In consideration of the audience for whom the book is intended, all mathematics other than that required for descriptive or illustrative purposes has been omitted from the main body of the text and incorporated into the 47 worked examples and 11 appendices./a
This book originated from the need for a suitable student text for the course "An Introduction to Modern Physics" given at the Hebrew University of Jerusalem. This course is open to all students who have completed the standard first-year physics courses in mechanics, optics, electricity and magnetism. Its primary goal is to produce graduates who are -- whatever their field of specialisation -- "modern-physics-literate". The presentation of the course material emphasises the physical aspects of the phenomena.
ONLY TODAY.Revealing to a person how he can succeed in life, by accustoming himself to live with today only, without paying attention to yesterday and certainly not to tomorrow. Furthermore disclosing the secret with which a person can alienate himself from Inactivity and idleness. By Mohorosh. Based on the Teachings of Rabbi Nachman of Breslov and of His Student Rabbi Nossan of Breslov
Israeli delta fighters pilots have been credited with almost 300 kills between 1966 and 1974, and dozens of them became aces. The Israeli aerial kill exchange rate and overall air-to-air performance was phenomenal. Although the Israeli pilots were flying Mach 2 fighters, they lacked any modern radar equipment and their MiG-21 flying opponents should have had a performance edge over them. This book details their most signifcant engagements, many of which were essentially World War 2 style dogfights fought with jet aircraft. Because neither side had the combat edge to disengage at will most engagements were a life and death struggle and the introduction of air-to-air missiles and the Israeli Nesher was to prove decisive in this theatre.
Shoham's broad knowledge of history, religious sources, and western philosophy enable him to introduce fascinating interpretations of the great ideas and movements that were current in the early Christian era. He offers a realistic interpretation of the life and death of Jesus Christ, the meaning of Torah learning as a substitute for Temple rituals and sacrifices, and many other elements in the religious life of the day.
The Animal Kingdom in Jewish Thought addresses several areas of life in which the animal world plays a dominant role, all of which are steeped in Jewish law, custom, and tradition. Shlomo Toperoff presents a detailed study of sixty-five different species of animals, all found in the Bible and reviewed in alphabetical order. The first chapter begins by enumerating the laws of the Sabbath and Festivals as they relate to animals. The reader will learn that the Sabbath, the weekly day of rest, applies not only to human beings but also to the beasts of the field. The rabbis of the Talmud discuss extensively the degree to which the laws of the Sabbath may be violated for the purpose of rescuing an animal in danger. From feeding an animal on the Sabbath to putting a fish back into its tank, Jewish law displays a distinct sensitivity to the animal and its dependence upon man for its well-being. Animal welfare, a long-held concern of animal activists and pet owners, finds its roots in the Bible and in Jewish tradition, where mankind is warned not to hurt even the smallest of insects. Naming a newborn child after certain animals is a long-standing Jewish tradition. Toperoff provides an extensive list of biblical characters who have been named after animals. After discussing the various sources of post-talmudic literature that cover animal issues, from the Kuzari to Maimonides to Rav Kook, Toperoff dedicates an entire chapter to Perek Shirah, a small book by an unknown author, probably written in the tenth century, which has three parts: heaven and earth, plants, and animals. All three share one common aim: they all owe their allegiance to their Creator and sing songs of praise unto Him.
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