本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 公仔箱論壇1 b. v. R$ b2 F# U
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If you are not a Physics person, read on and learn a fact of physics. 7 G. `. |5 v0 C% v- s( J7 ]' E+ C( T
AMAZING! 8 Y, B+ d/ R: s( E7 K; v
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Even after you see it, it is still hard to believe!5.39.217.76+ e/ ?' E) a q& Q+ C
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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。$ e8 c1 S2 d( u' T0 \7 r: N
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb" F/ {3 B8 y8 U
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
+ _8 c! e8 T1 i. k/ O. |. u: X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.公仔箱論壇% X+ J- l1 H" w) Z7 z" r; `
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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; E3 J1 S5 C+ B: Q C- X$ p: CTVBNOW 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:
8 z0 M7 e& D( ?2 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。公仔箱論壇2 ^" Q6 G Q" t4 a i O; P, {
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
2 @0 T; `6 @! a& S2 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。Or just the weight of the water? : e& f( c; v2 H# F
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It only needs to be designed to withstand the weight of the water!
1 `6 T9 J7 c, }& h( M% EWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded
+ D) N8 g. F1 l* F& O8 C4 Y4 y- TTVBNOW 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。2 A2 a; _% |' z
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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。: e2 U3 r% L$ U5 u) z
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.公仔箱論壇: }; g6 x* G3 [% G. r/ P2 q
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.
1 `! g; H( ~( y6 L2 U( O; ?, s5.39.217.76TVBNOW 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。" X2 Z9 k& @: L
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