本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 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。- i6 B% z5 ?- s6 P- l6 H
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If you are not a Physics person, read on and learn a fact of physics. 5.39.217.772 G! N: y% [' P- N$ T& s
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Even after you see it, it is still hard to believe!5.39.217.776 O- {3 Y; L/ Y" q( L2 S. m( a
6 M n. D' m5 \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; D1 u& O' N8 R3 U公仔箱論壇Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇# s' V& n" {4 t7 o, g. A& U
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇" Z2 j' }, L. \* R5 I6 d z
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.: G1 u% ^, ?: z! G: T% S
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.% W* Z9 v4 q Y+ [, z7 W: M
2 W4 y2 u* m- J7 Ttvb now,tvbnow,bttvbQuestion:公仔箱論壇6 b1 ~5 @9 h. I& [9 V* ]! a
3 C+ v$ S2 r2 |# }Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
% b+ {7 I, i$ i8 ~* z5.39.217.77Or just the weight of the water?
5 g) g; Y4 r9 ^# ]/ F1 o# yTVBNOW 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。4 j+ `2 v' L- C' ^5 g9 A0 t
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。* t; s7 V2 ^: h5 j* i
' g: K8 T* P( D0 h5 dtvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water!
4 _0 W! e4 P4 OTVBNOW 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
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$ ]; E9 n6 E7 H$ J5.39.217.77The Incredible Magdeburg Water Bridge in Germany
+ N. h- A" b M) I' F7 W公仔箱論壇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.
1 k: l4 w; p. R/ O! T3 f5 ptvb 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; m+ L8 h' i p( r8 p6 H& m: q0 A
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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, T6 `) I# E' q6 d/ w0 q1 ]. z8 U
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, U- }" \( A# U/ v3 c' Z9 d; vTVBNOW 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。1 {2 K( ?, {# c& ~# A
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