本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
( K1 ?8 }; i8 h6 l" K8 G2 R5.39.217.76TVBNOW 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。) T6 J& ], ~. L9 g
If you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb# N# @2 F |) r4 u
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Even after you see it, it is still hard to believe!2 g2 Z1 |! C1 l1 T+ O1 |
) A% A$ ?. u5 X3 @) D5.39.217.76TVBNOW 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。. R* ]( c) C8 f/ h' A
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
( z0 P7 o" r! P4 ^2 DThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。; y4 o" A% a* }: D0 L
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
3 G+ J& ]# c9 ]& {- s& _& t8 ]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。To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:
5 R, ]+ x' l6 |; a& G3 WTVBNOW 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。
7 Z# C2 v8 Q* Etvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,. G; Z" b6 z; g
Or just the weight of the water?
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Answer: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。$ u) [, ^. l8 F6 B
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It only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb3 m& ^6 b2 c8 ? p8 r+ g, {
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded6 D5 Z) n" A+ I3 G+ i* L
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The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb4 ]- g ^6 Q8 }9 d
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.
( V$ z ~) O; P3 d! ]6 y; ?公仔箱論壇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. - @) }! a+ d0 M1 q0 Y
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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 Q( A' @! n) @
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' i7 A! x" g$ I* ~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。0 a5 i5 k" n7 w, k6 v" e
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