Excerpt from The Electrical Age, Vol. 24: An Illustrated Weekly Electrical Journal; August December, 1899 In my next experiment I placed again a photographic plate in the tray with the film down. Then I took the hard rubber tray in my hand and placed my fingers on the outside of the bottom of the same and held them in posi tion the usual time. The result of the experiment was a plain imprint of my fingers on the film. As the plate rested on the four little buttons of the bottom of the tray, the rays therefore passed ...
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Excerpt from The Electrical Age, Vol. 24: An Illustrated Weekly Electrical Journal; August December, 1899 In my next experiment I placed again a photographic plate in the tray with the film down. Then I took the hard rubber tray in my hand and placed my fingers on the outside of the bottom of the same and held them in posi tion the usual time. The result of the experiment was a plain imprint of my fingers on the film. As the plate rested on the four little buttons of the bottom of the tray, the rays therefore passed through in. Thick hard rubber and a sheet of solution. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... 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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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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