本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 5.39.217.77:88981 W! ?8 S( K! ? z
3 q& m# r/ C& I+ V公仔箱論壇If you are not a Physics person, read on and learn a fact of physics. & l0 d! F, y7 w( X/ H; q
AMAZING!
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) {5 O* A4 f2 WEven after you see it, it is still hard to believe!5.39.217.77:8898! b* q1 c1 c% F' I) A. `8 u
+ d! e+ O9 p) v. x公仔箱論壇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。, H& x% D/ R) p, ]8 y* h
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 3 ]' X" u- H# k4 b$ `8 \
This 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* C: F- R" [; v$ j
It is located in the city of Magdeburg, near Berlin.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' e0 D& Y6 I: {
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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。$ y- N: M$ h/ u
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。9 f3 q7 e2 J0 O T# J' b
, p* H. A9 X9 F' P6 ctvb now,tvbnow,bttvbQuestion:
) d& b6 d* a, R3 w+ n/ O公仔箱論壇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 O% w: h4 m/ ]
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇( v% q1 V+ k5 _, ? Z( {2 ^
Or just the weight of the water? 公仔箱論壇6 N' Y$ |" N6 E: H: u
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。$ f4 R- B3 N2 ~ ^9 F/ N) F
Answer:tvb now,tvbnow,bttvb8 g! C1 P" R. l/ k) x3 F5 ~
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It only needs to be designed to withstand the weight of the water!
, Y8 u" E, }7 I0 e) H$ V9 B. `& t: Gtvb now,tvbnow,bttvbWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.77:8898" g" W8 a5 G5 t# E, F2 q+ l; ^
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/ z+ ?8 _% [7 G4 n8 E. ytvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany
! r( W0 r: n( U @3 \- ]1 W0 H* K' y5.39.217.77:8898The 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.公仔箱論壇$ f% T+ v5 k$ S2 v# U1 ~& i) J3 U
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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- j, a7 @6 P4 e2 z; g8 L/ J公仔箱論壇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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5 `: u! W8 c5 ~7 H0 o9 c( G. [6 CTVBNOW 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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