Excerpt from American Railroads: Four Phases of Their History It would not be far amiss to say that the gen eral surmise that the steam locomotive was the most important device for effecting carriage by land is partly mistaken. What was antecedently necessary to the art of land conveyance was the lessening of the friction of movement. This was essentially accomplished by the use of the railed track laid on a durable foundation. Had the steam locomotive never been invented, the railed track over which the flanged ...
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Excerpt from American Railroads: Four Phases of Their History It would not be far amiss to say that the gen eral surmise that the steam locomotive was the most important device for effecting carriage by land is partly mistaken. What was antecedently necessary to the art of land conveyance was the lessening of the friction of movement. This was essentially accomplished by the use of the railed track laid on a durable foundation. Had the steam locomotive never been invented, the railed track over which the flanged wheel rides would allow five to six pounds of energy exerted in the direction of motion to move a load of two thou sand pounds, and at rates of speed otherwise wholly unattainable. The addition of giant motor mechanisms such as the steam or electric locomo tive capable of delivering enormous tractive power at the drawbar enormously multiplies our capacity for effecting land carriage. But of the two the railway track is the more essential. 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.