Background
Edward Bennett Rosa was born in Rogersville, N. Y. , the son of Edward D. and Sarah Gilmore (Rowland) Rosa. His father was a descendant of Albert Heymans Roosa who came from Holland and settled near Newburgh, N. Y. , in 1660.
(Excerpt from Special Studies in Electrolysis Mitigation: ...)
Excerpt from Special Studies in Electrolysis Mitigation: 1. A Preliminary Study of Conditions in Springfield, Ohio, With Recommendations for Mitigation Part 1. Methods of Electrolysis Mitigation. A. Methods applicable to pipes 1. Surface insulation of pipes. 2. Insulating joints in pipes. 3. Pipe Drainage Systems. (a) Direct taps between pipes and rails (b) Negative feeders to pipes. B. Methods to be applied to the railway system 4. Construction and Maintenance of Way 5. Uninsulated negative feeder system 6. Insulated negative feeder system (a) Boosters in separate feeders (6) Insulated negative feeders without boosters. (c) Single booster system. (d) Inverted booster systems. 7. Number and location of power stations. Part II. Recommendations for Electrolysis - Mitigation in Springfield, Ohio. I. Improvement in rail joints 2. Interconnection of tracks. 3. Cross tying of tracks on East Main and High Streets 4. Negative feeder systems. 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.
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(Excerpt from A New Determination of the Ratio of the Elec...)
Excerpt from A New Determination of the Ratio of the Electromagnetic to the Electrostatic Unit of Electricity One of us published1 a determination of v in 1889, made at the Johns Hopkins University, using the spherical condenser which had been employed by Rowland ten years before, deriving V from the ratio of the electrostatic to the electromagnetic capacity of the con denser. This is probably the best of all the methods yet employed for determining the ratio of the units. By this method V is determined in terms of a resistance, but inasmuch as V is equal to the square root of the ratio of the capacities, the uncertainty due to an error in the value of the ohm is divided by two, so that if we admit an uncertainty of two parts in five thousand in the value of the inter national ohm, that would involve an uncertainty of only one part in five thousand in V. All of the methods of determining V which do not involve the ohm are subject to even larger uncertainties in other directions. Hence it seemed to us desirable to make a new deter mination of the value of V, using the method of capacities, and to undertake to attain a higher order of accuracy than had heretofore been realized. 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.
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(This is a reproduction of a book published before 1923. T...)
This is a reproduction of a book published before 1923. 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. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Special Studies In Electrolysis Mitigation, No. 2: Electrolysis From Electric Railway Currents And Its Prevention--an Experimental Test On A System Of Insulated Negative Feeders In St. Louis, Issue 2; Volume 32 Of Technologic Papers Of The Bureau Of Standards; Issue 32 Of Technologic Papers; United States National Bureau Of Standards Edward Bennett Rosa, Burton McCollum, Kirk Harold Logan Govt. Print. Off., 1914 Science; Chemistry; Industrial & Technical; Electrolytic corrosion; Railroad rails; Science / Chemistry / Industrial & Technical
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(This book was originally published prior to 1923, and rep...)
This book was originally published prior to 1923, and represents a reproduction of an important historical work, maintaining the same format as the original work. While some publishers have opted to apply OCR (optical character recognition) technology to the process, we believe this leads to sub-optimal results (frequent typographical errors, strange characters and confusing formatting) and does not adequately preserve the historical character of the original artifact. We believe this work is culturally important in its original archival form. While we strive to adequately clean and digitally enhance the original work, there are occasionally instances where imperfections such as blurred or missing pages, poor pictures or errant marks may have been introduced due to either the quality of the original work or the scanning process itself. Despite these occasional imperfections, we have brought it back into print as part of our ongoing global book preservation commitment, providing customers with access to the best possible historical reprints. We appreciate your understanding of these occasional imperfections, and sincerely hope you enjoy seeing the book in a format as close as possible to that intended by the original publisher.
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(This book was originally published prior to 1923, and rep...)
This book was originally published prior to 1923, and represents a reproduction of an important historical work, maintaining the same format as the original work. While some publishers have opted to apply OCR (optical character recognition) technology to the process, we believe this leads to sub-optimal results (frequent typographical errors, strange characters and confusing formatting) and does not adequately preserve the historical character of the original artifact. We believe this work is culturally important in its original archival form. While we strive to adequately clean and digitally enhance the original work, there are occasionally instances where imperfections such as blurred or missing pages, poor pictures or errant marks may have been introduced due to either the quality of the original work or the scanning process itself. Despite these occasional imperfections, we have brought it back into print as part of our ongoing global book preservation commitment, providing customers with access to the best possible historical reprints. We appreciate your understanding of these occasional imperfections, and sincerely hope you enjoy seeing the book in a format as close as possible to that intended by the original publisher.
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Edward Bennett Rosa was born in Rogersville, N. Y. , the son of Edward D. and Sarah Gilmore (Rowland) Rosa. His father was a descendant of Albert Heymans Roosa who came from Holland and settled near Newburgh, N. Y. , in 1660.
Edward graduated from Wesleyan University, Middletown, Connecticut, at the head of the class of 1886, and after two years pursued advanced studies at the Johns Hopkins University, from which he received the doctorate of philosophy in 1891.
Edward taught physics for two years before his graduate studies at Johns Hopkins University. At the University under the direction of H. A. Rowland, he began the work on electrical measurements which later gave him world-wide recognition. Son of a Methodist minister, he was endowed with a strict moral sense and a confidence in his own judgment which never wavered.
Training in banking and bookkeeping strengthened the sense of exactitude which found expression in his later activities in scientific and public affairs. In 1891 he returned to Wesleyan as associate professor of physics, and from 1892 to 1903 he held a professorship there. He was notably successful as instructor and administrator, but also continued his investigative work.
Jointly with Professor Wilbur O. Atwater, he devised apparatus and made measurements which showed that the physical law of conservation of energy applied to animal processes as it does to inanimate ones, and thus gave a scientific basis for study of problems of nutrition. In 1902, on leave of absence from Wesleyan, he took charge of the electrical work of the National Bureau of Standards, which had been established in 1901. All his energies thereafter were directed to the development of that institution. In fact, he became a martyr to its welfare, in the trying period of readjustment after the World War, for he died suddenly at his desk in 1921, as a direct result of over-exertion in preparing data regarding the status of personnel in the Bureau of Standards and other scientific organizations of the government.
Rosa's first decade of service in the Bureau was devoted to the establishment of precise electrical units and standards and the building up of a staff capable of carrying on the specialized work in electrical measurements which he developed, while the second decade was marked by an intensive practical application of these facilities, including work on many military problems which arose during the war. His fundamental work on electrical measurements included precise determination of the value of the ampere as measured by the mechanical forces exerted between coils carrying current, and a determination of the relation between electrical units derived from magnetic effects and those derived from electrostatic forces. Both of these were done with the collaboration of N. Ernest Dorsey. From the latter relation between units, it is possible to predict the velocity of light, and it has been found that the electrical measurements of Rosa and Dorsey gave a result nearer the true value than had been obtained up to that time by direct measurements on light itself. Rosa also took a leading part in the researches and the negotiations which led to the establishment of the present international system of electrical units, being secretary of the International Committee on Electrical Units and Standards which had jurisdiction over this work.
His later activities included studies of many engineering problems arising in the operation and the regulation of public-utility services. He urged effectively the principle of solving such problems by scientific study carried on jointly by the utilities and regulatory authorities, with consequent agreement on just and reasonable rules and practices. One outgrowth of this method of cooperative action was the enlargement and reorganization of the American Engineering Standards Committee, which has since become the American Standards Association.
His final work was an analysis of federal governmental expenditures, showing the immense costs of war and of preparation for war, in contrast with small expenditures for productive functions of the government. The widespread publication of these analyses played a great part in promoting intelligent discussion of government finances, and in developing public support for the limitation of armaments which was begun at the Washington Conference of 1921.
Rosa's writings were largely detailed technical studies, appearing in appropriate periodicals and in the publications of the Bureau of Standards. The more important among them were the following: "A New Respiration Calorimeter and Experiments on the Conservation of Energy in the Human Body" (Physical Review, September, October 1899), with W. O. Atwater; "A New Determination of the Ratio of the Electromagnetic to the Electrostatic Unit of Electricity" (Bureau of Standards Bulletin, vol. III, 1907, pp. 433-604), with N. E. Dorsey; "Formulas and Tables for the Calculation of Mutual and Self-Inductance" (Ibid. , vol. VIII, 1911, pp. 1237), with F. W. Grover; "A Determination of the International Ampere in Absolute Measure" (Ibid. , pp. 269-393), with N. E. Dorsey and J. M. Miller; "The Silver Voltameter" (Ibid. , vol. IX, 1912-13), with G. W. Vinal and A. S. McDaniel; and "Expenditures and Revenues of the Federal Government" (Annals of the American Academy of Political and Social Science, May 1921).
(Excerpt from A New Determination of the Ratio of the Elec...)
(This book was originally published prior to 1923, and rep...)
(This book was originally published prior to 1923, and rep...)
(Excerpt from Special Studies in Electrolysis Mitigation: ...)
(This is a reproduction of a book published before 1923. T...)
Rosa was married on the 22nd of March 1894, to Mary, daughter of William W. Evans of Harrisburg. They had no children.