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.
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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!
* Z+ N/ \. Q0 R) a& @0 `3 `# cThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇- p6 p' s& u) c5 I! Z$ |8 X1 g' C
It is located in the city of Magdeburg, near Berlin.公仔箱論壇$ h4 k+ @5 s2 w: i8 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。2 l6 X$ p! L3 W4 p- Y
The photo was taken on the day of inauguration.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。+ M C' c N' F1 o8 x9 [( Y
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.763 Q$ Y! }) b1 j( z; _' w
Or just the weight of the water? tvb now,tvbnow,bttvb8 V; o8 P8 U& Z, _ H
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Answer:tvb now,tvbnow,bttvb+ j& M$ o& ?3 l: M+ F) \ T
* M$ V1 Q1 h3 p( k8 G/ U' Jtvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water!
- }$ n- T3 M7 v$ X5 }! b! G: ^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。Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.76/ [( @" W' G: s* i: o& [" ^ s+ v
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% L' q# S7 x& D# B! {The Incredible Magdeburg Water Bridge in Germany1 Y( ~6 C# F' j' R2 k/ J
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.tvb now,tvbnow,bttvb n! S3 F/ y3 |: d& G# D9 G
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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" T/ e+ c6 J) Z0 e( v5.39.217.76Construction 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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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。; W0 o. P' p% n; F
tvb now,tvbnow,bttvb' j# c) N Z' f( v& s
公仔箱論壇* |+ P% b) h, w/ o7 g# T+ t8 x
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) y7 [6 C3 P! C9 l* n5 b( h$ j7 V5.39.217.76TVBNOW 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。2 T% m1 c% x( u) M0 d9 S
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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。" P, h& A7 ]1 J# F* C$ _' P+ O% E
發表於 2011-10-15 09:35 PM
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