Eiffel Tower - WikipediaGeometry and Materials. The Tower is made exclusively of wrought iron, although steel was available at the time. Eiffel chose iron because steel was more expensive since it was a new development, and also because he was experienced and confident in iron design. This distinction can be made mathematically by the following relation:. If the Tower had a narrower base e. N W would double and the ratio would be 1. As a visual comparison, one may think of the Washington Monument , which is one-half as tall as the Eiffel Tower , but weighs four times as much!
How was the Eiffel Tower built? I Head Squeeze
It is named after the engineer Gustave Eiffel , whose company designed and built the tower. Constructed from to as the entrance to the World's Fair , it was initially criticised by some of France's leading artists and intellectuals for its design, but it has become a global cultural icon of France and one of the most recognisable structures in the world.
Eiffel Tower Facts & Worksheets
It was at the Exposition Universelle , the date that marked the th anniversary of the French Revolution, that a great competition was launched in the Journal Officiel. The first digging work started on the 28th January On the 31st March , the Tower had been finished in record time — 2 years, 2 months and 5 days — and was established as a veritable technical feat. The plan to build a tower metres high was conceived as part of preparations for the World's Fair of Bolting the joint of two crossbowmen. The wager was to " study the possibility of erecting an iron tower on the Champ-de-Mars with a square base, metres across and metres tall ".
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PDF | The design and construction of the Eiffel Tower was based, in part, on a uniform horizontal wind model giving kg m−2 kinematic pressure acting on the.
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His finished tower got both praise and criticism and a lot of amazement. After the Centennial Exposition, of ended, Eiffel knew that he had to find new profitable ways to save his tower. He directed changes to prepare for a meteorological station in , a military telegraph station in , and a laboratory for studying aerodynamics in Even further changes were made for the expostitions of , , and An extra height of 66 feet 20 meters was add on to the tower of television transmissions.