Excerpt from Experimental Determination of the Velocity of Light In November, 1877, a modification of Foucault's arrangement suggested itself, by which this result could be accomplished. Between this time and March of the following year a number of preliminary experiments were performed in order to familiarize myself with the optical arrangements The first experiment tried with the revolving mirror produced a deflection considerably greater than that obtained by Foucault. Thus far the only apparatus used was such as could be adapted from the apparatus in the laboratory of the Naval Academy. At the expense of $10 a revolving mirror was made, which could execute 128 turns per second. The apparatus was installed in May, 1878, at the laboratory. The distance used was 500 feet, and the deflection was about twenty times that obtained by Foucault.* These experiments, made with very crude apparatus and under great difficulties, gave the following table of results for the velocity of light in miles per second. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

This sixth volume of Historical Studies in the Physical Sciences presents articles by ten eminent scholars on the intellectual and social history of the physical sciences from the eighteenth century to the present. CONTENTS The Emergence of Japan's First Physicists: 1868-1900 (Kenkichiro Koizumi) The Reception of the Wave Theory of Light in Britain: A Case Study Illustrating the Role of Methodology in Scientific Debate (Geoffrey Cantor) Origins and Consolidation of Field Theory in Nineteenth Century Britain: From the Mechanical to the Electromagnetic View of Nature (Barbara Giusti Doran) Hertz's Researches on Electromagnetic Waves (Salvo D'Agostino) God and Nature: Priestley's Way of Rational Dissent (J. G. McEvoy and J. E. McGuire) Laurent, Gerhardt, and the Philosophy of Chemistry (John Hedley Brooke) The Lewis-Langrnuir Theory of Valence and the Chemical Community, 1920-1928 (Robert E. Kohler, Jr.) G. N. Lewis on Detailed Balancing, the Symmetry of Time, and the Nature of Light (Roger H. Stuewer) Rutherford and Recoil Atoms: The Metamorphosis and Success of a Once Stillborn Theory (Thaddeus J. Trenn) Originally published in 1976. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

Lavishly illustrated, fascinating and accessible introduction to Einstein's relativity for general readers, school students and undergraduates.