本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
. o* R' b! `6 E O( _2 z( T5.39.217.77TVBNOW 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。# N u4 E i! R9 c3 Q
If you are not a Physics person, read on and learn a fact of physics.
( j) I8 Z2 n n5 A. A5 X/ \% @公仔箱論壇AMAZING!
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( W5 y7 l" e/ j6 q) F5.39.217.77Even after you see it, it is still hard to believe!
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* w7 U4 |, X$ h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!
) r5 n4 P: Z/ s8 ]& i: m5.39.217.77This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. / H+ S' B1 }. Q# S9 q1 ~1 d2 t
It is located in the city of Magdeburg, near Berlin.5.39.217.77; n% H* V8 `# u* |
' [1 I. H( ?6 Q# J: ~8 zThe photo was taken on the day of inauguration.
4 N$ E0 L- X. x4 c0 I% uTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:公仔箱論壇8 U6 @1 A | Y5 d) F
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
1 ]; t: r4 R2 Z' |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。Or just the weight of the water?
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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。& G+ h8 g; u* S% A
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It only needs to be designed to withstand the weight of the water! 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# l- G8 X; _9 a2 ^! N& O
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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The Incredible Magdeburg Water Bridge in Germany
* }7 h$ O S" v/ b& YThe 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.
/ W/ s0 G& {$ k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.
' h% W' n3 V0 z( v% h% C$ FTVBNOW 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。
' g; ? E. z1 aConstruction 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. 0 |" ]5 T1 g9 k d" ]
* D6 u+ e4 b! J/ o4 @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。
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