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Excerpt from The American X-Ray Journal, Vol. 12: A Monthly Devoted to the Practical Application of the New Science and to the Physical Improvement of Man, January, 1903I do not use different tubes for differ ent classes of cases, and those requiring different degrees of penetration, but use an adjustable vacuum tube and regulate its penetration by vacuum adjuster, mul tiple spark gaps, Leyden jar condensers, etc. I use as low a vacuum as I ca...

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve ...

Excerpt from A Geometrical Vector AlgebraThis formula, being true for all real values Of 71, includes products, quotients, powers and roots Of vector operators.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 th...

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Excerpt from A Geometrical Vector AlgebraThis formula, being true for all real values Of 71, includes products, quotients, powers and roots Of vector operators.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 th...