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Drawbridge - Wikipedia, the free encyclopedia
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Caddo Lake Drawbridge - Wikipedia, the free encyclopedia
The Historic Caddo Lake Drawbridge at Mooringsport, Louisiana is a lift bridge built in 1914 to replace the ferry by the Midland Bridge Company of Kansas City, Missouri under authority of the Caddo ...
en.wikipedia.org/wiki/Caddo_Lake_Drawbridge |
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Geodesic Dome - a dome composed of short, straight pieces joined to form triangles; invented by Buckminster Fuller ... a drawbridge has a deck that can be raised and lowered; a bascule bridge deck is raised with counterweights like a drawbridge; and the deck of a lift bridge is raised vertically like a massive elevator...
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Castle Drawbridges. Castle studies on history, architecture, design, and preservation. ... Counter weights were developed to make the difficult task of hauling up the heavy drawbridge easier. Some castles had a protruding room so that when the drawbridge was in a raised position the underside of it became an extra door.
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He invented the nitric acid battery in 1839 and it was often called by his name. In the same year he also effected the recompositon of water by means of the voltaic current produced by it's decomposition. His essay on the 'Correlation of Physical forces' was an essay on dynamic ... When Was The First Drawbridge Invented?
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