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                <text>Quantum physics is believed to be the fundamental theory underlying our understanding of the physical universe. However, it is based on concepts and principles that have always been difficult to understand and controversial in their interpretation. This book aims to explain these issues using a minimum of technical language and mathematics. After a brief introduction to the ideas of quantum physics, the problems of interpretation are identified and explained. The rest of the book surveys, describes and criticises a range of suggestions that have been made with the aim of resolving these problems; these include the traditional, or 'Copenhagen' interpretation, the possible role of the conscious mind in measurement and the postulate of parallel universes</text>
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&lt;/span&gt;&lt;span class="NormalTextRun SCXW15999892 BCX8"&gt;technisch&lt;/span&gt;&lt;span class="NormalTextRun SCXW15999892 BCX8"&gt; &lt;/span&gt;&lt;span class="NormalTextRun SCXW15999892 BCX8"&gt;antwoord&lt;/span&gt;&lt;span class="NormalTextRun SCXW15999892 BCX8"&gt; op &lt;/span&gt;&lt;span class="NormalTextRun SCXW15999892 BCX8"&gt;v&lt;/span&gt;&lt;span class="NormalTextRun SCXW15999892 BCX8"&gt;e&lt;/span&gt;&lt;span class="NormalTextRun SCXW15999892 BCX8"&gt;le&lt;/span&gt;&lt;span class="NormalTextRun SCXW15999892 BCX8"&gt; van die &lt;/span&gt;&lt;span class="NormalTextRun SCXW15999892 BCX8"&gt;vragen&lt;/span&gt;&lt;span class="NormalTextRun SCXW15999892 BCX8"&gt;. 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                <text>&lt;span&gt;Have you every wanted to build a sundial or to understand how one works? Then you have probably been frustrated as you search vainly for help. Most books on the subject are either rare out-of-print works published centuries ago and available only in highly specialized collections, or highly complicated treatises whose information is hidden behind frightening arrays of involved formulas. But now your search is over. This book is designed to meet sundialing needs at either the simple or the sophisticated level.&lt;/span&gt;&lt;br /&gt;&lt;span&gt;Albert E. Waugh, professor and administrator at the University of Connecticut for 40 years, and an expert on the subject of sundials and their curious history, presents, on the one hand, a rigorous appraisal of the science of sundials, including mathematical treatment and an explanation of the pertinent astronomical background; on the other hand, he presents simple and non-technical treatments such that several of the dials can be built by children!&lt;/span&gt;&lt;br /&gt;&lt;span&gt;The subject matter is arranged in 19 chapters, each covering a different aspect of dialing science. All the common types of dials are covered, but the reader can also learn about analemmatic dials, polar dials, equatorial dials, portable dials, memorial dials, armillary spheres, reflected ceiling dials, cross dials, and old-fashioned noon marks. There are also sections on dial furniture, mottoes, the actual layout out of a dial, the equation of time, finding time in other cities, how to find the meridian, how to find time by moonlight — even how to estimate time from the length of one's own shadow! Directions are given for designing dials for any part of the country, or any place in the world. The author has designed many dials, and his text is filled with helpful hints based on his own personal experience. There are over 100 illustrations, charts, and tables, followed by an appendix which is filled with material which reduces or eliminates the need for calculation on the part of the reader.&lt;/span&gt;</text>
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                <text>The most definitive collection of Albert Einstein's popular writings, gathered under the supervision of Einstein himself. The selections range from his earliest days as a theoretical physicist to his death in 1955; from such subjects as relativity, nuclear war or peace, and religion and science, to human rights, economics, and government.</text>
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                <text>Ces notes ont été rédigées par Einstein, à l'âge de 67 ans, pour le volume VII de Library of living philosophers, intitulé Albert Einstein : philosopher-scientist (1949). Elles ont été publiées en volume séparé pour la première fois en mars 1979, aux Etats-Unis. Il s'agit d'un autoportrait scientifique: "comment, quand et pour quelles raisons, le savant pensa de la façon qui fut la sienne et à quelles conclusions l'ont conduit ses recherches à tel ou tel moment de sa vie". Un document précieux.&lt;br /&gt;&lt;br /&gt;
Le texte original en Allemand a été inclu.&lt;br /&gt;</text>
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                <text>In 1905, a German technical journal, &lt;em&gt;Annalen der Physik&lt;/em&gt;, published a remarkable paper by a young clerk in the patent office at Berne, Switzerland. The clerk was Albert Einstein. The paper outlined his Special Theory of Relativity, a revolutionary physical theory which discarded the concept of absolute motion in favour of relative motion in the context of a four-dimensional continuum of space-time. It proved to be the most profound revolution in physics since Newton.&lt;br /&gt;
About ten years later, building on his earlier work, Einstein formulated the General Theory of Relativity in which he offered a new solution to the great problem of gravitation, postulating the non-Euclidean character of the space-time continuum. Together, the two theories constituted a radically reoriented way of looking at the physical universe, an approach that solved many of the unresolved difficulties of classical mechanics and paved the way for great advances in 20th-century physics.&lt;br /&gt;
This concise volume contains two addresses by Dr. Einstein outlining aspects of the theories. Ether and Relativity (1920), delivered at the University of Leyden, discusses the properties demanded of the ether of space by the theory of relativity. Geometry and Experience (1921), given at the Prussian Academy of Sciences, describes the limits within which the Euclidean or any other practical geometric system can be held to be approximately true in connection with the concept of a finite universe.&lt;br /&gt;
Both lectures are reprinted here complete and unabridged; both express elegant ideas in simple prose devoid of complicated equations or abstruse terminology; both offer scientists and laypeople unparalleled insight into the seminal thinking of the 20th century's greatest physicist.</text>
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                <text>Sinds 1916, toen dit werk in het Duits verscheen, is het ontelbare malen vertaald en herdrukt. En ondanks het feit dat Einstein in 1955 is overleden en natuurkunde sindsdien een stormachtige ontwikkeling heeft doorgemaakt, is dit boek ook nu nog een onovertroffen inleiding tot dit moeilijke maar zeer interessante onderwerp. Hier is de meester zelf aan het woord!&lt;br /&gt;&lt;br /&gt;
De natuurkundige grondslagen van de speciale en algemene relativiteitstheorie worden duidelijk en begrijpelijk behandeld. De nadruk ligt dan ook niet op de wiskundige precisie van de presentatie, maar op de algemene wetenschappelijke en filosofische aspecten.</text>
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                <text>From the age of Galileo until the early years of the 20th century, scientists grappled with seemingly insurmountable paradoxes inherent in the theories of classical physics. With the publication of Albert Einstein's "special" and "general" theories of relativity, however, traditional approaches to solving the riddles of space and time crumbled. In their place stood a radically new view of the physical world, providing answers to many of the unsolved mysteries of pre-Einsteinian physics.&lt;br /&gt;
Acclaimed as the pinnacle of scientific philosophy, the theories of relativity tend to be regarded as the exclusive domain of highly trained scientific minds. The great physicist himself disclaimed this exclusionary view, and in this book, he explains both theories in their simplest and most intelligible form for the layman not versed in the mathematical foundations of theoretical physics.&lt;br /&gt;
In addition to the theories themselves, this book contains a final part presenting fascinating considerations on the universe as a whole. Appendices cover the simple derivation of the Lorentz transformation, Minkowski's four-dimensional space, and the experimental confirmation of the general theory of relativity. Students, teachers, and other scientifically minded readers will appreciate this inexpensive and accessible interpretation of one of the world's greatest intellectual accomplishments.</text>
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                <text>Here are the 11 papers that forged the general and special theories of relativity: seven papers by Einstein, plus two papers by Lorentz and one each by Minkowski and Weyl. "A thrill to read again the original papers by these giants</text>
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                  <text>Natuurkunde</text>
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      <name>Boek</name>
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              <text>0-000-6712-0156-5</text>
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                <text>NAT0918</text>
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                <text>Albert Einstein &amp; Leopold Infeld</text>
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                <text>The evolution of physics</text>
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                <text>The book has three parts: classical physics, relativity, and quantum physics (there wasn't much particle physics or cosmology in 1938, after all). The classical treatment is an extended examination of Galilean invariance, and is both brilliant and nicely presented (without equations). The special relativity theory part explains the twin principles of inertial frames and the constancy of the speed of light. It is very nicely done, although it has to be mysterious for the reader when even the simplest algebra is off limits. The general relativity part is presented as the extension from inertial to arbitrary frames, from with gravity is introduced via the equivalence of inertial and gravitational mass. I suspect this is mostly mysterious for the reader, but I'm not sure. The quantum section is the least successful. The authors center on particle energy discreteness, but do not really get into the strange and mysterious aspects of quantum mechanics. Nor do the explain spin, fermions, bosons, etc.&lt;br /&gt;&lt;br /&gt;&lt;em&gt;Review on Amazon by Herbert Gintis, october 2020&lt;/em&gt;&lt;br /&gt;</text>
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