本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics.
3 F7 B- E0 n6 q' c. `' r/ qtvb now,tvbnow,bttvbAMAZING!
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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! + B: P- L2 H9 v9 _2 F" B
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
1 a S0 J5 }, t# G9 S. ~; F0 Atvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.tvb now,tvbnow,bttvb2 `5 Z# b; N* P) X1 S t1 Z
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:tvb now,tvbnow,bttvb9 {" f. s' ^# G: z" t# q
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
1 l$ e$ ?; _% lwww1.tvboxnow.comOr just the weight of the water?
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+ a, f8 d; B3 F9 c* TAnswer:+ e5 y" O7 O% ]; _% b
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It only needs to be designed to withstand the weight of the water!
- x0 h; }. ~2 P! rTVBNOW 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
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/ w0 X& F* U; R0 T. }! d7 a9 ptvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany公仔箱論壇7 y/ k; u# q& K& P
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.) Q8 O: s: O4 Q
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. , {. Y6 c$ @3 o
& i; `& W# |1 t! wwww1.tvboxnow.comConstruction 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. 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。; o; @3 C( ]8 x+ Y
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