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.
1 _% x5 U" F$ {% }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。AMAZING! ( M; n* O6 X; U- Y" W4 S+ M
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Even after you see it, it is still hard to believe!; q2 f1 q) r# _
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
* T; ~6 J, H) z( ?5 m0 K2 ?This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
/ k1 Y- [& T) U( R- i6 ], S& `公仔箱論壇It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
5 J* K6 ?; Q0 |1 {% m5.39.217.76To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇5 {: P0 x: v/ ^7 Z N: K; |
; j+ K+ v+ O* a6 p, K% T; 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。Question:- t- u& i- Y/ W$ j* f) R& j
1 n! K, f& b5 S8 k( G7 ?, NTVBNOW 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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
/ S. Y. [# l: cOr just the weight of the water?
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Answer:& G0 w# Z9 @! M v
( v% y% { H$ @1 p2 V! z6 J. yIt only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb& j% I, D2 C) `, X A5 c
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
4 Y7 _$ g0 b% Y/ ~tvb now,tvbnow,bttvb
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+ F" T0 L8 _9 J; n1 L2 _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。The Incredible Magdeburg Water Bridge in GermanyTVBNOW 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 c/ g# T& S( z! o x$ t
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。& P5 O ~/ F/ ?7 N0 O. @8 S
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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. ?% p5 n7 u8 N% W: ^$ ?) [7 ]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 r! B6 m- k% H4 S9 _5 ^9 @6 e
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' u% A' d; I9 o' M$ Q7 \- }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。
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