本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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6 ]+ T" u8 S; g% a ]6 S4 d, ^( 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。If you are not a Physics person, read on and learn a fact of physics. 5.39.217.763 b' e/ N9 f0 y [6 }. Z
AMAZING!
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% Z3 \- q: o0 A8 QEven after you see it, it is still hard to believe!
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' u2 e2 }; ?5 h* L2 `- n 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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
$ V0 S& M. w: vtvb 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.
+ c+ z V2 o, o5 p! h5.39.217.76It is located in the city of Magdeburg, near Berlin.
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. X X6 l; }( k5.39.217.76The photo was taken on the day of inauguration.
- z0 @* p* I7 p8 D1 P: `tvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.76& u; m+ s/ h! _2 B4 p1 C
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Question:
% S2 D2 l$ Y1 ]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。
2 _- }/ {) O& {. u y0 k. bDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
0 M( G7 H. B, G5 Rtvb now,tvbnow,bttvbOr just the weight of the water?
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( x$ ?9 p0 t' \: ~( u: }' `Answer:
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; P5 g; j; y: E9 E9 z6 }7 Ztvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water!
$ H2 I; `+ q4 W公仔箱論壇Why? 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。% S3 h) I0 B# a0 `) i
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The Incredible Magdeburg Water Bridge in Germany! N# J0 N6 q- b9 ?7 E
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.5.39.217.76, o, _" N, P; H5 O! G8 p* v2 F1 c
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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1 g1 m* R6 K3 VConstruction 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, m# y, y+ a; m4 h4 l8 r
7 h3 y; L( ?6 V1 i! N* UTVBNOW 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。tvb now,tvbnow,bttvb) v$ D% J; F6 M$ b% A, _( B
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。7 T+ U6 f) p. k& A
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tvb now,tvbnow,bttvb( N _" |; P( |6 |' s! [9 P8 k
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0 r) A9 p2 h5 V7 V( j" ^公仔箱論壇5.39.217.766 K: l8 R$ Q- W. C# R" C2 |
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發表於 2011-10-2 10:09 PM
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發表於 2011-10-4 11:33 AM
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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。% f7 x1 _2 g; {6 ^8 b# J
發表於 2011-10-15 09:35 PM
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