Books with author LH Thomson

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It is stated in the preface that this book is an expansion of the series of lectures delivered at the Royal Institution in the spring of 1906.The book consists of seven chapters which deal respectively with the origin and properties of corpuscles, the two different corpuscular theories of metallic conduction, and in the number and arrangement of corpuscles in the atom.In the first chapter corpuscles in vacuum tubes are considered, and 'evidence is given showing that the corpuscles act as carriers of electricity, and that a positively electrified body owes its positive electrification to a defect of corpuscles. Also a positive charge is always associated with a mass comparable to that of the hydrogen or helium atom, whereas the corpuscles appear always to have the same mass, viz., that of about 1/1700 the atom of hydrogen.As is well known, the positive ions are given off by radium, and constitute the "X" rays. These have been examined by Rutherford and others, and the ratios of — e/m measured.The second chapter deals with the origin of the corpuscle, and here all the arguments are carefully set forth, and these tend to show that its mass is wholly electrical in origin.The evidence for the existence of corpuscles afforded by the Zeeman effect is discussed in a most luminous manner.The chapters of most interest to electrical engineers are IV and V, in which the two theories of metallic conduction of electricity are most carefully explained. These are very interesting indeed, and the mathematics used is not too heavy.The first of these theories assumes that the corpuscles are in temperature equilibrium with their surroundings, and that the "drift" of the corpuscles which constitutes the electric current, is started and maintained by the direct action of the electric field which acts on them. From considerations of the expressions derived for the conductivity of a substance, a rough estimate of the number of the corpuscles in a cubic centimetre of silver is arrived at, and the number is shown to be of the same order as the number of atoms in that volume. Again, the comparison between the ratio of the thermal to the electric conductivities gives a fairly close approximation to the results of experiment.The anomalous behaviour of alloys is pointed out in connection with the above, and the fact that pure metals appear to tend to zero resistance at the absolute zero of temperature, whilst that of alloys Beems to tend towards a definite limiting value.Lorenz's theory of radiation is next discussed, as well as the theory of the Hall, Peltier and Thomson effects. By considering the amount of heat absorbed or developed in a junction of two dissimilar metals when a current passes through it, the ratio of the number of corpuscles in unit volume of each metal may be determined, and from the Thomson effect, the change in this number for any one metal with temperature. The number arrived at in this way for silver is 1*8 x 1024. It is then shown that this makes the specific heat of silver about 10 times larger than the value required by experiment….— "The Electrical Review," Volume 61

The Traveling Tails of Tummy Cakes and Slippery Skates is a travel, history, and adventure series that follows two lovable terriers around the globe as they discover amazing people and diverse cultures set in the natural wonders of the world we live in, which in the end brings us all together and makes us one.In the first book entitled A Tale of Two Sweeties, we meet Cakes and Skates, who live in the historic Manatee River area of Florida where De Soto landed in the New World in 1539. The river teems not only with history, but with wildlife as diverse as dolphins, ospreys, manatees, and alligators.In this rhyming reader perfect for ages five through eight, we see their home as it is today and was 500 years ago.Come join the pups and see a world that you've never seen before.Activity pages and glossary included.

Excerpt from Treatise on the Motion of Vortex Rings: An Essay to Which the Adams Prize Was Adjudged, in 1882, in the University of CambridgeA. General investigation of the action upon each other of two closed vortices in a perfect incompressible fluid.In this essay, in addition to the set subject, I have discussed some points which are intimately connected with it, and I have endeavoured to apply some of the results to the vortex atom theory of matter.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.

In the year 1883 a legacy of eighty thousand dollars was left to the President andF ellows of Yale College in the city of New Haven, to be held in trust, as a gift from her children, in memory of their beloved and honored mother Mrs. Hepsa Ely Silliman. On this foundation Yale College was requested and directed to establish an annual course of lectures designed to illustrate the presence and providence, the wisdom and goodness of God, as manifested in the natural and moral world. These were to be designated as theM rs. Hepsa Ely Silliman Memorial Lectures. It was the belief of the testator that any orderly presentation of the facts of nature or history contributed to the end of this foundation more effectively than any attempt to emphasize the elements of doctrine or of creed; and he therefore provided that lectures on dogmatic or polemical theology should be excluded from the scope of this foundation, and that the subjects should be selected rather from the domains of natural science and history, giving special prominence to astronomy, chemistry, geology, and anatomy. It was further directed that each annual course should be made the basis of a volume to form part of a series constituting a memorial toM rs. Silliman. The memorial fund came into the possession of the Corporation of Yale University in the year 1902; and the present volume constitutes the first of the series of memorial lectures.(Typographical errors above are due to OCR software and don't occur in the book.)About the Publisher Forgotten Books is a publisher of historical writings, such as: Philosophy, Classics, Science, Religion, History, Folklore and Mythology.Forgotten Books' Classic Reprint Series utilizes the latest technology to regenerate facsimiles of historically important writings. Careful attention has been made to accurately preserve the original format of each page whilst digitally enhancing the aged

This scarce antiquarian book is a facsimile reprint of the original. 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 for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.