Excerpt from d104-Book of Electrochemistry Ohm. - The unit of electrical resistance is that resistance offered at 00 by a column of pure mercury 10630 cm. Long with a section of one square millimetre. This is the inter national ohm, and is equal to 1063 Siemens' units. 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.