Author: Jean PerrinPublisher:
ISBN:
Category : Brownian movements
Languages : en
Pages : 110
Book Description
Brownian Movement and Molecular Reality
Author: Jean PerrinPublisher:
ISBN:
Category : Brownian movements
Languages : en
Pages : 110
Book Description
Brownian Movement and Molecular Reality (Classic Reprint)
Author: Jean PerrinPublisher: Forgotten Books
ISBN: 9780331823905
Category : Science
Languages : en
Pages : 108
Book Description
Excerpt from Brownian Movement and Molecular Reality These familiar ideas, however, only hold good for 'the scale of size to which our organism is accustomed, and the simple use of the microscope suffices to impress on us new ones which substitute a kinetic for the old static conception of the fluid state. 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.
BROWNIAN MOVEMENT AND MOLECULAR REALITY
Author: JEAN. PERRINPublisher:
ISBN: 9781033993705
Category :
Languages : en
Pages : 0
Book Description
Brownian Motion and Molecular Reality
Author: Raghav SethPublisher:
ISBN: 0190098023
Category : Philosophy
Languages : en
Pages : 469
Book Description
Between 1905 and 1913, French physicist Jean Perrin's experiments on Brownian motion ostensibly put a definitive end to the long debate regarding the real existence of molecules, proving the atomic theory of matter. While Perrin's results had a significant impact at the time, later examination of his experiments questioned whether he really gained experimental access to the molecular realm. The experiments were successful in determining the mean kinetic energy of the granules of Brownian motion; however, the values for molecular magnitudes Perrin inferred from them simply presupposed that the granule mean kinetic energy was the same as the mean molecular kinetic energy in the fluid in which the granules move. This stipulation became increasingly questionable in the years between 1908 and 1913, as significantly lower values for these magnitudes were obtained from other experimental results like alpha-particle emissions, ionization, and Planck's blackbody radiation equation. In this case study in the history and philosophy of science, George E. Smith and Raghav Seth here argue that despite doubts, Perrin's measurements were nevertheless exemplars of theory-mediated measurement-the practice of obtaining values for an inaccessible quantity by inferring them from an accessible proxy via theoretical relationships between them. They argue that it was actually Perrin more than any of his contemporaries who championed this approach during the years in question. The practice of theory-mediated measurement in physics had a long history before 1900, but the concerted efforts of Perrin, Rutherford, Millikan, Planck, and their colleagues led to the central role this form of evidence has had in microphysical research ever since. Seth and Smith's study thus replaces an untenable legend with an account that is not only tenable, but more instructive about what the evidence did and did not show.
Brownian Movement and Molecular Reality
Author: Jean PerrinPublisher: Andesite Press
ISBN: 9781296498696
Category : History
Languages : en
Pages : 114
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Molecular Reality
Author: Mary Jo NyeBrownian Movement and Molecular Reality
Author: Jean PerrinPublisher: Courier Corporation
ISBN: 0486174727
Category : Science
Languages : en
Pages : 108
Book Description
How do we know that molecules really exist? An important clue came from Brownian movement, a concept developed in 1827 by botanist Robert Brown, who noticed that tiny objects like pollen grains shook and moved erratically when viewed under a microscope. Nearly 80 years later, in 1905, Albert Einstein explained this "Brownian motion" as the result of bombardment by molecules. Einstein offered a quantitative explanation by mathematically estimating the average distance covered by the particles over time as a result of molecular bombardment. Four years later, Jean Baptiste Perrin wrote Brownian Movement and Molecular Reality, a work that explains his painstaking measurements of the displacements of particles of a resin suspended in water — experiments that yielded average displacements in excellent accord with Einstein's theoretical prediction. The studies of Einstein and Perrin provided some of the first concrete evidence for the existence of molecules. Perrin, whose name is familiar to all who employ his methods for calculations in molecular dynamics, received the 1926 Nobel Prize in physics. In this classic paper, he introduced the concept of Avogadro's number, along with other groundbreaking work. Originally published in the French journal Annates de chimie et de physique, it was translated into English by Frederick Soddy to enduring influence and acclaim.
Brownian Motion and Molecular Reality
Author: George E. SmithPublisher: Oxford University Press
ISBN: 019009804X
Category : Science
Languages : en
Pages : 288
Book Description
Between 1905 and 1913, French physicist Jean Perrin's experiments on Brownian motion ostensibly put a definitive end to the long debate regarding the real existence of molecules, proving the atomic theory of matter. While Perrin's results had a significant impact at the time, later examination of his experiments questioned whether he really gained experimental access to the molecular realm. The experiments were successful in determining the mean kinetic energy of the granules of Brownian motion; however, the values for molecular magnitudes Perrin inferred from them simply presupposed that the granule mean kinetic energy was the same as the mean molecular kinetic energy in the fluid in which the granules move. This stipulation became increasingly questionable in the years between 1908 and 1913, as significantly lower values for these magnitudes were obtained from other experimental results like alpha-particle emissions, ionization, and Planck's blackbody radiation equation. In this case study in the history and philosophy of science, George E. Smith and Raghav Seth here argue that despite doubts, Perrin's measurements were nevertheless exemplars of theory-mediated measurement-the practice of obtaining values for an inaccessible quantity by inferring them from an accessible proxy via theoretical relationships between them. They argue that it was actually Perrin more than any of his contemporaries who championed this approach during the years in question. The practice of theory-mediated measurement in physics had a long history before 1900, but the concerted efforts of Perrin, Rutherford, Millikan, Planck, and their colleagues led to the central role this form of evidence has had in microphysical research ever since. Seth and Smith's study thus replaces an untenable legend with an account that is not only tenable, but more instructive about what the evidence did and did not show.
The Kinetic Theory of Gases
Author: Stephen G BrushPublisher: World Scientific
ISBN: 1783261056
Category : Science
Languages : en
Pages : 660
Book Description
This book introduces physics students and teachers to the historical development of the kinetic theory of gases, by providing a collection of the most important contributions by Clausius, Maxwell and Boltzmann, with introductory surveys explaining their significance. In addition, extracts from the works of Boyle, Newton, Mayer, Joule, Helmholtz, Kelvin and others show the historical context of ideas about gases, energy and irreversibility. In addition to five thematic essays connecting the classical kinetic theory with 20th century topics such as indeterminism and interatomic forces, there is an extensive international bibliography of historical commentaries on kinetic theory, thermodynamics, etc. published in the past four decades. The book will be useful to historians of science who need primary and secondary sources to be conveniently available for their own research and interpretation, along with the bibliography which makes it easier to learn what other historians have already done on this subject. Contents:The Nature of Gases and of Heat (Boyle, Newton, Bernoulli, Gregory, Mayer, Joule, von Helmholtz, Clausius, Maxwell)Irreversible Processes (Maxwell, Boltzmann, Thomson, Poincaré, Zermelo)Historical Discussions by Stephen G BrushA Guide to Historical Commentaries: Kinetic Theory of Gases, Thermodynamics, and Related Topics Readership: Graduate and research students, teachers, lecturers and historians of physics. Keywords:Kinetic Theory;Gases;Boyle's Law;Gas Laws;Viscosity;Diffusion;Forces between Atoms and Molecules;Interatomic Forces;Ergodic Theorem;Ergodicity;Heat Conduction;Irreversibility;Indeterminism;Thermodynamics;First Law of Thermodynamics;Second Law of Thermodynamics;Third Law of Thermodynamics;Law of Conservation of Energy;Maxwell Velocity Distribution;Boltzmann's H Theorem;Boltzmann's (Transport) Equation;Reversibility Paradox;Recurrence Paradox;Statistical MechanicsReviews:“One of the most important contributions of this volume is the bibliography in Part IV … This is a useful book and should be on the shelves of all kinetic theorists and statistical mechanics.” Journal of Statistical Physics “This book will be useful both for historical research and for students studying the history of physics.”Notes and Records of the Royal Society “It is valuable to have the work in print again, since some of the originals are not always easily accessible and all who have struggled, for example, with Boltzmann's German will welcome accurate translations … The whole book is to be welcomed as an aid to those undertaking research or otherwise interested in exploring these fields.”AMBIX
The Atmosphere (Classic Reprint)
Author: Arthur John BerryPublisher: CUP Archive
ISBN:
Category : Science
Languages : en
Pages : 168
Book Description
Excerpt from The Atmosphere The author desires to thank Professor Seward for his kind editorial help. To Dr G. F. O. Searle and to the late Mr H. 0. Jones he is indebted for many valuable criticismsand suggestions. 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.