本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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. e, T0 e" f' k& i# q$ r7 ]4 E4 z公仔箱論壇If you are not a Physics person, read on and learn a fact of physics. 5.39.217.76( A1 I: \9 d7 Q$ e
AMAZING! 5.39.217.762 m: Z6 C, X$ r8 ]- X) R' K) l; S
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Even after you see it, it is still hard to believe!
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
. y9 s! B" {" \% L% ~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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
+ g* u4 m4 l3 g5.39.217.76It is located in the city of Magdeburg, near Berlin.5.39.217.76 D& j* L: A9 L
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The photo was taken on the day of inauguration.tvb now,tvbnow,bttvb; T0 Y& L p, d; J% H8 F$ O
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.8 u6 _+ }: ]* o! y
* O6 x2 u. F! q3 k& 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。Question:
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$ F; I) Y# t4 O+ Q: R( N# y9 b$ }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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇+ J9 z2 l7 J- {: @. I3 u7 D
Or just the weight of the water? 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。8 q/ v8 \; r) O. l; N9 M
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Answer:
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6 t: Q: f1 H; Ktvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water!
$ I4 k3 @2 Z- Z公仔箱論壇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
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The Incredible Magdeburg Water Bridge in Germany
% Q! D6 z) u. u& R2 Y# Y4 w5 etvb now,tvbnow,bttvbThe 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.
( u7 _* f* C/ }3 F: DThe 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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5 g* w4 j4 {: K; _2 r8 S* d5.39.217.76Construction 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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/ P. N' W4 I: f1 F, J; _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。. E& `0 u. F ~& A% i
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