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。/ _$ X8 {6 w5 _ ?7 G8 J
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If you are not a Physics person, read on and learn a fact of physics.
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6 ]( f! n2 x5 u) t# BEven after you see it, it is still hard to believe!
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7 F# d9 d0 d* `4 {: VMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
- C/ c0 J g( a. }' p0 z0 g: o公仔箱論壇This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
/ p/ F# B& v5 _; C( k3 _6 jtvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.www2.tvboxnow.com+ U0 d$ v& _' g$ U5 v# `
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The photo was taken on the day of inauguration.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。* r$ u0 X$ u( i2 B( v8 E5 \
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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# t; H9 `) q- q: S, U* X1 ITVBNOW 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:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
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Answer:www2.tvboxnow.com/ L k$ S" h# e* ?
+ A7 g+ c1 |+ ?% B ywww2.tvboxnow.comIt only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb5 f z; f& k7 q/ Y. T1 v( v. s
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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3 x0 I% b' @- N6 Q, ^& Y# btvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany公仔箱論壇( j" N3 J3 `( n7 a7 d
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.' r3 B. r$ R- D+ x
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. tvb now,tvbnow,bttvb* a9 }% A6 z+ ^9 a% ]4 U& @
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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. , }& e( ]- `. L
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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。/ m" j% D# h6 C4 h3 F7 x g
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。( H: m. o1 Y4 J: g
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