EVER SEEN A RIVER OVER A RIVER?
本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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: h# Z' F' I* P% N. tIf you are not a Physics person, read on and learn a fact of physics.
+ `* y) W* v! Z$ \% ]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。AMAZING! 5.39.217.77:8898+ w* }5 O, `6 B
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Even after you see it, it is still hard to believe!5.39.217.77:8898/ h" [* B" G. T% R8 {5 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!
$ P0 ~/ Q; @# J0 D& [8 hThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。! _* H6 i: ]! J, Q2 K. ]/ |$ K
It is located in the city of Magdeburg, near Berlin.公仔箱論壇# W: ?! b- F1 F6 o8 G1 f
, a9 {: ~* D8 B( Z. _7 k- ?- v公仔箱論壇The photo was taken on the day of inauguration.公仔箱論壇- T& ^" Z- f. Y* {; }: B4 x
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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+ G. w- X. G" A- M4 }3 mtvb now,tvbnow,bttvbQuestion:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
8 |) [- c& A+ E3 {& i- p公仔箱論壇Or just the weight of the water?
5 V- W L0 G6 \- U7 M) |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。' w& E+ U1 X: N s5 h0 ^* ]* k
Answer:公仔箱論壇& Y4 s2 Z$ R0 L3 [$ |' C4 @
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It only needs to be designed to withstand the weight of the water!
0 G7 h* b* f- d( B2 v c; ETVBNOW 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。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* I" |1 u/ ^/ N. ]4 t
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4 c1 h) `' N/ v7 v) yThe 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。% H! K: A5 f' A$ j8 K' N
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.
* {. [" j/ d- _- b4 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 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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% U; c* N) l; O4 B& d+ dConstruction 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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! u- n6 \$ D: F公仔箱論壇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。6 U# x5 K1 G1 c3 P5 ~* V9 Y
, c2 g2 g" a0 K4 w) Z4 p9 STVBNOW 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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