本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 公仔箱論壇4 ]/ p+ U5 W8 H. t! [9 j; ~2 k4 ~
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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!
5 p4 z, k2 ~: b2 \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。 q- l4 O+ ~5 W& G) b
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb& M% }" o9 d) F1 L8 C
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5 p( @4 Q; v Z- J
It is located in the city of Magdeburg, near Berlin.
U+ F |, \1 a8 kTVBNOW 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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To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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& w: S) s$ z! A% n. A$ bQuestion:公仔箱論壇6 V/ }8 j- b e# a3 P" d# d8 N1 w- U, Q
0 ~& z' Y2 z3 E, @& N5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
, X6 m$ V1 v; r; j9 r9 d* m0 ~. dTVBNOW 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。Or just the weight of the water?
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Answer:
1 }9 V1 }. u0 M4 qTVBNOW 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。
; T% J2 Z* W- W3 U7 W3 V5 pTVBNOW 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。It only needs to be designed to withstand the weight of the water!
3 C, A! v4 D# J, L$ 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。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' h. t* E! u0 h* H7 s( k
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/ @" T1 p5 g! J9 e公仔箱論壇The Incredible Magdeburg Water Bridge in Germany4 u1 [) I* T" H# W, o
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.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。( v# m3 {% K+ y+ a6 K. g: S; V
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. 3 {/ `5 h8 V/ C, E8 l
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- s5 R% m+ M, d7 F7 V$ g0 q9 s5.39.217.76TVBNOW 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。% j2 v5 N5 R! [9 H, e5 W* s
; m+ u( ~# I9 Z" A: m _8 Y+ FTVBNOW 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。2 ? [, r" A6 r% v: G8 q& e
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