本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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# t' M1 i, _5 K4 \, ?& w6 {If you are not a Physics person, read on and learn a fact of physics. 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。, D7 X+ S$ a( `- s! Y3 b: J; A
AMAZING!
# S* L6 x, K* |. a4 j9 w3 l) Q8 PTVBNOW 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。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。3 a# Q9 `/ ]6 r+ [& ^, Y: F
Even after you see it, it is still hard to believe!+ ~2 x% B D5 P" v. B
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* @1 N) }' j9 z: D& s. LMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
0 K9 C# ~: R! B9 T. }tvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
) Z) `) J$ \- z5.39.217.77:8898It is located in the city of Magdeburg, near Berlin.
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: h$ k8 P4 @) c1 T$ E* sTVBNOW 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.
% B" H+ e2 V9 l" x8 HTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.77:88987 W5 E! U! W9 h5 T
5 C: W9 Z9 d6 E# V1 f5.39.217.77:8898Question:1 R5 R1 _0 q; k" R: i
5.39.217.77:8898 U8 h$ t2 F! k5 O( `
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
5 C9 t# j6 P( _; d* A) l8 I* ttvb now,tvbnow,bttvbOr just the weight of the water?
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! b5 o+ L& j' K1 A, W- jAnswer:
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0 i& \2 C6 j& R3 ?" n" ~It only needs to be designed to withstand the weight of the water!
5 A6 j5 u& E. u4 Xtvb now,tvbnow,bttvbWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded) m( N/ [* @8 \# M8 S- N
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公仔箱論壇, N; t& |: f9 f3 s
The Incredible Magdeburg Water Bridge in Germany
5 I+ _* o+ P9 w+ WThe 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./ S$ H4 ]- x9 k. A. a
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.
8 Q1 e, x1 N8 l9 ]5 v# C4 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。
) {8 Z. a4 G7 N9 f8 p公仔箱論壇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. tvb now,tvbnow,bttvb/ K+ s3 K# H4 t1 Y; V7 Q
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2 G+ q& \ [, ]8 z3 etvb now,tvbnow,bttvb
+ O% n1 ~& P; O) T% G# gTVBNOW 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。5 C2 x0 a. E! u9 e
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公仔箱論壇3 p5 A0 a" Y" t$ m; H1 n
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發表於 2011-10-2 10:09 PM
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