本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 : L7 \& _5 r$ f* q2 t
" q7 n r3 X: x( H- A8 R( s! b: tIf you are not a Physics person, read on and learn a fact of physics. 8 d- i4 o {/ u9 U
AMAZING!
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3 ]$ H. z$ y# N+ Nwww1.tvboxnow.comEven after you see it, it is still hard to believe!
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
4 c B9 I% k6 M- n7 Wwww1.tvboxnow.comThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
. S: @' w5 d4 M3 b& G5 O8 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。It is located in the city of Magdeburg, near Berlin.! Q4 Y" K* K3 E5 W
" v: U7 r1 N; \! y5 Z% fThe photo was taken on the day of inauguration.公仔箱論壇& S* l c! o, J: k( k" a
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. c+ H7 L# g+ l
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Question:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,2 t& A' M5 ~0 V& o7 X+ y8 Q: c: C
Or just the weight of the water? www1.tvboxnow.com# V1 L& o; H5 C# p3 |9 ~- K, y: `' ?
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& o: }1 w G ?% |: _It only needs to be designed to withstand the weight of the water! www1.tvboxnow.com+ S" y8 D. E \/ S4 r
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
) s3 \6 A; w4 [: u* p/ \2 L7 }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。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。& C# T1 X: D4 `1 q2 D- u! w
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。, X; O n7 a' I# ]
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。* p# e. G; }2 A% |' P
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.
' I" S8 p' J- x& E, ^7 M- @tvb now,tvbnow,bttvbThe 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. 公仔箱論壇" G1 u. z# X8 t' p' I/ n5 i# b9 p- r
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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. 公仔箱論壇/ ]* `7 w1 l# T# ~$ F/ Q
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0 _8 |! j6 ?0 G( ~; p$ G公仔箱論壇6 `3 w y" h: l* c1 }
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