本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 公仔箱論壇1 `# R, c& ^7 B, s
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If you are not a Physics person, read on and learn a fact of physics. 5.39.217.77:88981 ~3 N3 W" B0 R6 ~: f
AMAZING!
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$ r C4 U" l' n1 l3 l' fEven after you see it, it is still hard to believe!6 h: ]6 b; @+ B5 z6 {( q
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3 G: Q( W8 e" {7 |7 c& kMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.77:88989 y& c. p/ n5 _% v( _2 x
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
8 {8 ]' ]. V. F# _6 n) X5.39.217.77:8898It is located in the city of Magdeburg, near Berlin.
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) ~6 h+ Y% W7 X8 r/ i$ @( jTVBNOW 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 photo was taken on the day of inauguration.7 t: t y. {: e" W% u$ z
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.) ^: e( e/ x. d0 ?. D& f3 t
$ c6 I9 x, n. x2 ~$ N% ^公仔箱論壇Question:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb, ?. A) X8 i# J; A- U9 E$ c
Or just the weight of the water? tvb now,tvbnow,bttvb! F. [5 g7 b$ n
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Answer:; n: f0 J3 |5 u9 S; U! a
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。9 q- J: f$ U; b# f* g% C0 n
It only needs to be designed to withstand the weight of the water!
0 V- J3 M; C/ k2 O" R5.39.217.77:8898Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedTVBNOW 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。 t q4 n& t" K6 |
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/ a. B, V I6 B \% r- PTVBNOW 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。9 K) C+ T% j% P$ V \2 ^
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.
, X, ^: `- d' p- W0 BThe 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.
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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。 {' R/ Q3 [. c
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! H( X5 R( e0 p, cTVBNOW 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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