EVER SEEN A RIVER OVER A RIVER?
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. + v4 [3 w) m5 \- u2 v& D+ Y
AMAZING!
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Even 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! 5.39.217.76* K3 ?' ^) @+ _. ^
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ' U1 _) O, C' G3 H5 l- k
It is located in the city of Magdeburg, near Berlin.5.39.217.765 x0 O& _9 M. {
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The photo was taken on the day of inauguration.
" \- `+ o3 g9 T! t: t! }To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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9 O) q* k; R% M! X2 rQuestion:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,4 R3 V! o0 \' A8 @ h
Or just the weight of the water? 5.39.217.763 ]3 R6 f7 P1 ~+ |" B- R. J8 w; J
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Answer:
- j# V# B9 M% Q7 h" `* Xtvb now,tvbnow,bttvb
8 p# X1 b" r% m% r& A) 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 only needs to be designed to withstand the weight of the water!
$ ^) d# P; t% W7 e8 ztvb 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 loaded
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The Incredible Magdeburg Water Bridge in Germany
0 M- t1 x- R) F6 `5 mThe 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.
5 z3 g, i% ~- f1 _. T: }' N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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2 y1 t/ d- @2 n9 r# W0 @1 X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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