বৃহস্পতিবার, ২৮ ফেব্রুয়ারী, ২০১৩
ONLINE CASINO
বুধবার, ২০ ফেব্রুয়ারী, ২০১৩
Design of the tower ( Eiffel Tower )
Material
The Eiffel Tower from below
The puddled iron[37] (wrought iron) structure of the Eiffel Tower weighs 7,300 tonnes, while the entire structure, including non-metal components, is approximately 10,000 tonnes. As a demonstration of the economy of design, if the 7,300 tonnes of the metal structure were melted down it would fill the 125-metre-square base to a depth of only 6 cm (2.36 in), assuming the density of the metal to be 7.8 tonnes per
The Eiffel Tower from below
The puddled iron[37] (wrought iron) structure of the Eiffel Tower weighs 7,300 tonnes, while the entire structure, including non-metal components, is approximately 10,000 tonnes. As a demonstration of the economy of design, if the 7,300 tonnes of the metal structure were melted down it would fill the 125-metre-square base to a depth of only 6 cm (2.36 in), assuming the density of the metal to be 7.8 tonnes per
Subsequent events ( Eiffel Tower )
Thomas Edison visited the tower. He signed the guestbook with the following message—
To M Eiffel the Engineer the brave builder of so gigantic and original specimen of modern Engineering from one who has the greatest respect and admiration for all Engineers including the Great Engineer the Bon Dieu, Thomas Edison.
19 October 1901
Alberto Santos-Dumont in his Dirigible No.6 won a 10,000-franc prize offered by Henri Deutsch de la Meurthe for the first person to make a flight from St Cloud to the Eiffel tower and back in less than half an hour.
1910
Father Theodor Wulf measured radiant energy at the top and bottom of the tower. He found more at the top than expected, incidentally discovering what are today known as cosmic rays.[27]
4 February 1912
Inauguration and the 1889 Exposition ( Eiffel Tower )
The main structural work was completed at the end of March 1889 and on the 31st Eiffel celebrated this by leading a group of government officials, accompanied by representatives of the press, to the top of the tower. Since the lifts were not yet in operation, the ascent was made by foot, and took over an hour, Eiffel frequently stopping to make explanations of various features. Most of the party chose to stop at the lower levels, but a few, including Nouguier, Compagnon, the President of the City Council and reporters from Le Figaro and Le Monde Illustré completed the climb. At 2.35 Eiffel hoisted a large tricolore, to the accompaniment of a 25-gun salute fired from
Construction ( Eiffel Tower )
The "Artists Protest" ( Eiffel Tower )
ORIGIN of Eiffel Tower
Eiffel Tower
The tower stands 320 metres (1,050 ft) tall, about the same height as an 81-storey building. During its construction, the Eiffel Tower surpassed the Washington Monument to assume the title of the tallest man-made structure in the world, a title it held for 41 years, until the Chrysler Building in New York City was built in 1930.
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