With the present ninth volume we bring to a conclusion the edition of the Collected Papers of Professor H. A. Lorentz. It contains the evidence of his constant activity to promote the interest in science of a larger public, in particular of his country men, by addresses on se- veraloccasions, by articles in magazines and newspapers, and other- wise. In a certain way in this part of his work he belongs more partic- ularly to his country, therefore we reproduce it in the original lang- uage, with the exception of his inaugural address as Leiden professor early in I878, which readers abroad might be interested in. The sketch of Ludwig Boltzmann, in the German language, contains a most powerful and deep-going survey of the scientific work of this genius. In several places the character of the man's personality rather than that 0/ the scientist reveals itself, his attitude towards various problems and his personal views. In his first address he refers to the value of mathematics, we hear his dislike lor too vivid visual speculations and crude hypotheses, his taste lor the soberness of mathematical formulae, where he argues that the fundamental principles must needs escape further explanation. On page 54 we read what he said about determin- ism, and on page I8I he expresses himself on the relation of matter and mind. His intimate feelings on space and time, and the aether, are touched upon on pages 240, 26I, 274.

A guide to a concise and accessible account of Einstein's world-shaking theory by a close colleague and expert . First published in 1920 this remarkable account gives the foundation for understanding more recent advances in cosmology

Albert Einstein (14 March 1879 - 18 April 1955) was a German-born theoretical physicist who developed the general theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics). While best known for his mass-energy equivalence formula E = mc2 (which has been dubbed "the world's most famous equation"), he received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect." The latter was pivotal in establishing quantum theory. Hendrik Antoon Lorentz (18 July 1853 - 4 February 1928) was a Dutch physicist who shared the 1902 Nobel Prize in Physics with Pieter Zeeman for the discovery and theoretical explanation of the Zeeman effect. He also derived the transformation equations subsequently used by Albert Einstein to describe space and time.

This scarce antiquarian book is a selection from Kessinger Publishing's Legacy Reprint Series. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment to protecting, preserving, and promoting the world's literature. Kessinger Publishing is the place to find hundreds of thousands of rare and hard-to-find books with something of interest for everyone!

This scarce antiquarian book is a selection from Kessinger Publishing's Legacy Reprint Series. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment to protecting, preserving, and promoting the world's literature. Kessinger Publishing is the place to find hundreds of thousands of rare and hard-to-find books with something of interest for everyone!

This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.

This book is a facsimile reprint and may contain imperfections such as marks, notations, marginalia and flawed pages.

In the spring of 1906, Nobel laureate H.A. Lorentz gave a famous series of lectures at Columbia University. Gathered in one volume and published as The Theory of Electrons in 1909, these talks are still widely read and admired today, more than 100 years later. This collection includes lectures on: . the theory of free electrons . the emission and absorption of heat . the theory of the Zeeman-effect . the propagation of light in a body composed of molecules . the theory of the inverse Zeeman-effect . the optical phenomena in moving bodies Extensive notes, complete with mathematical equations, complement the text, and an extensive index will aid the reader. Dutch physicist HENDRIK ANTOON LORENTZ (1853-1928) shared the Nobel Prize in physics with Pieter Zeeman in 1902. His publications include The Einstein Theory of Relativity: A Concise Statement (1920), Lectures on Theoretical Physics (1927), and Problems of Modern Physics (1927).

Ein Werk des niederl ndischen Physik-Nobelpreistr gers Hendrik Antoon Lorentz, im Original 1902 erschienen.