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。# r2 m# b3 U- ?* z% b5 Q7 j
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If you are not a Physics person, read on and learn a fact of physics.
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! A6 j' ~, G- X. k, ]公仔箱論壇Even after you see it, it is still hard to believe!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。8 j ^; B: c+ c" V+ y8 N
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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。1 @' `' j2 E* w+ Y
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5 a, Y. B& b# l4 [6 M1 l1 e4 i
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! h' {( p% A% N9 G. I" w! R# d
It is located in the city of Magdeburg, near Berlin.
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n5 J9 I1 U+ R) R6 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。The photo was taken on the day of inauguration.tvb now,tvbnow,bttvb# I& }1 U5 V/ _8 k+ R3 }
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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4 u/ e" p& G. |6 h* A$ y M( v5.39.217.76Question:/ }# T# R4 J r4 \$ w+ v
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
! y7 ~7 p9 T# K" _; 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。Or just the weight of the water? tvb now,tvbnow,bttvb& d& o5 J' o5 `4 O: R/ Q! L
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Answer:
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It only needs to be designed to withstand the weight of the water!
n6 g* [9 L, y+ D. x/ fWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedTVBNOW 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。3 z Y3 N+ p4 z" X0 D" @
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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。" X: E( K9 D; [5 a& r
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' C5 @9 `% ~8 A7 i1 `
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.
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