本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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- a# j, e6 w' z! f. IIf you are not a Physics person, read on and learn a fact of physics.
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J3 ]- [" h5 |' Rtvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!5 `" S( r U. x4 `$ i% f0 C
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! , K! e, |0 w! c3 {
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇( z2 R5 I! n5 O4 K4 n9 t4 y! n
It is located in the city of Magdeburg, near Berlin.
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% S ~' d5 m+ V% BThe photo was taken on the day of inauguration.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。" R; M- V1 O) r
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:! o5 E( e/ `) {' O
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~) A7 E1 L) E e4 E' H$ dAnswer:
/ o* { i- k- YTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。公仔箱論壇0 Q1 \0 n, x; ?1 X2 _
It only needs to be designed to withstand the weight of the water! 5.39.217.76. e3 R, r' l- [' u
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded
F6 v! H: i2 b* C p9 ]TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。4 H8 a3 z u5 R; u' S" e+ M
( d% S( p; Q' ^: `; x4 @TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。The Incredible Magdeburg Water Bridge in GermanyTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。6 g6 t5 ]* p! N5 H
The Magdeburg Water Bridge is a navigable aqueduct in Germany that connects the Elbe-Havel Canal to the Mittelland Canal and allows ships to cross over the Elbe River. At 918 meters, it is the longest navigable aqueduct in the world.3 {+ \ D. k, j
The Elbe-Havel and Mittelland canals had previously met near Magdeburg but on opposite sides of the Elbe Ships moving between the two had to make a 12-kilometer detour, descending from the Mittelland Canal through the Rothensee boat lift into the Elbe, then sailing downstream on the river, before entering the Elbe-Havel Canal through Niegripp lock. Low water levels in the Elbe often prevented fully laden canal barges from making this crossing, requiring time-consuming off-loading of cargo.
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Construction of the water link was started as early as in the 1930s but due to the World War 2 and subsequent division of Germany the work remained suspended till 1997. The aqueduct was finally completed and opened to the public in 2003. 9 }1 j @2 |4 I! Y+ N+ K$ R
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6 s4 t. J3 i; T( A. f- x6 \TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。
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TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。2 r7 {% R' n8 y# ]5 z# p* V
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