本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 tvb now,tvbnow,bttvb5 E6 Q6 M" o1 V F7 r
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If you are not a Physics person, read on and learn a fact of physics.
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$ h, d3 j' O) B" j+ F: A: g5.39.217.76Even after you see it, it is still hard to believe!5.39.217.760 C1 X3 M: s, g+ @4 i0 C
: r: S' P, L& L7 W6 v X: @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. r6 N2 k( x" R2 Q3 k0 [
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
) }, S5 k9 s9 r! A. L ~, 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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。! Y" i0 g! a' z/ i" {) L4 x3 ~3 v
It is located in the city of Magdeburg, near Berlin.
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0 I9 X$ ?1 M- WThe photo was taken on the day of inauguration.
2 X8 p& J, l5 `% q" ~To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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 r$ w5 |2 e$ M3 e- l U0 w: R
9 c W4 j3 [) b/ t: q' y( B2 H. Q6 t公仔箱論壇Question:tvb now,tvbnow,bttvb+ L5 w& J4 d/ B* R
5 k$ |. ^' K% y3 kDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.76 R5 ^- A- p! `& \6 u' ~3 I
Or just the weight of the water? tvb now,tvbnow,bttvb! E& V; _& n3 O N3 J1 D
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Answer:
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) n: m' V! |) N3 A. c+ CIt only needs to be designed to withstand the weight of the water!
( [- Z3 T5 L2 @- p8 \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 loadedtvb now,tvbnow,bttvb. I: R- Z$ A2 e" E S6 p
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; K+ r1 Z6 s& V2 \9 O3 hThe Incredible Magdeburg Water Bridge in Germany, n& ], f8 x1 J
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.
% K3 v8 y4 s8 m1 W+ D* PThe 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. - w/ F$ d" }' ~" F( ?6 Q
& f5 i+ }1 e; f) ~1 r; Z7 MConstruction 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.
1 b$ J' g+ `" e0 O/ t* KTVBNOW 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$ b% @6 s; L6 Z! i* C; I1 @" `
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! ~0 {! l2 b: i! w4 N: s- H5.39.217.76公仔箱論壇$ w: p! w2 R/ n) ~: i5 m
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