本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 公仔箱論壇" N0 R8 n. p7 w' \( i7 w9 G, v2 q% \
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。0 i' }! M6 S. V8 c2 ~
If you are not a Physics person, read on and learn a fact of physics.
/ y2 B: T* A6 _; L( R& aTVBNOW 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!
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Even after you see it, it is still hard to believe!
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3 t# `5 g8 ?+ p m1 _- `* v0 _公仔箱論壇Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
: _$ O w, ?( d: U0 T! [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. 5.39.217.765 c# D9 V F; c% e, n0 ]$ P
It is located in the city of Magdeburg, near Berlin.
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( R0 X( E/ ^' Ztvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.5.39.217.76$ K& {7 |- A& G4 A
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:7 s/ \9 e2 p. x" J$ ]. l3 D
7 v4 b1 i( ?. BDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,7 p4 L% c" x6 v- u
Or just the weight of the water?
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Answer:
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It only needs to be designed to withstand the weight of the water!
5 W6 A8 H s- J7 R& T% `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- B! k" `) W" F: O0 b! F
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1 \- V. @: m! Mtvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany3 Q3 d8 R7 a" ]9 z' E% a
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.
% y) @6 v! m" G! V公仔箱論壇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.
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