本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 / y5 Y5 X* u" \
& G4 ^+ h- `& Z# r0 @4 a5.39.217.76If you are not a Physics person, read on and learn a fact of physics. + `- x y# I r) m
AMAZING!
3 D2 Q1 B( ]# m; g4 x" c: Q公仔箱論壇5.39.217.76 K, a: J( @$ Y: G1 R% r
Even after you see it, it is still hard to believe!
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/ C- ], p2 W& q% S- _; s4 F% qMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
, O+ T* H ~$ a2 Z$ Q+ oThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. % q' A8 v$ o" d" c, D g
It is located in the city of Magdeburg, near Berlin.
& X6 `5 b" ]: y" b+ X+ 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。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$ i4 t' F4 f9 U& b0 {( x" `
The photo was taken on the day of inauguration.. c8 t* ^$ V4 r2 z6 z
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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。$ V0 r1 i z- o
% G- g2 s3 a! R' k0 {) v* U; gQuestion:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb$ E2 w; n9 @8 Q3 a8 Z
Or just the weight of the water? 5.39.217.76) I A5 z/ I I) O X% a3 z: Y
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Answer:
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; ^3 m6 n- t. Q) d) rIt only needs to be designed to withstand the weight of the water!
( C& e% N* O$ @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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% h) c6 m8 S9 Q) b. zThe Incredible Magdeburg Water Bridge in Germany
' Q1 Z# B- d% [" X6 B) ]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.
$ S% @5 i' u/ |4 [5.39.217.76The 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. 5.39.217.762 p3 d5 \; d, v6 U: I% i6 R' v
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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. 5.39.217.761 A0 ~8 @4 j* y' Y
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- s3 w, H( P+ I8 z) s. i/ x: u" Y! lTVBNOW 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! Z% K2 A+ D. O/ p* e; [
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