本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics.
: [& i4 O- p0 w* p* oAMAZING!
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Even after you see it, it is still hard to believe!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。( u2 T+ `* ~5 j* S: R
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
8 _* k/ I. \# Z# ] T* E, |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. + a0 O/ N; l5 i: E
It is located in the city of Magdeburg, near Berlin.
! h: ]7 L6 W2 f) C& ?3 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。
9 U' d4 j/ F7 XTVBNOW 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.1 B; N6 `; i) T" A
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。2 w& L: C* m4 V6 G. |) p
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
% t7 N( ~/ Z K, `Or just 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。6 v- j6 m x9 M/ w
7 z B1 v0 d) P5.39.217.77:8898Answer:
8 @4 S- z1 A2 f% F2 ~, c. r8 CTVBNOW 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。0 N: \5 H, M' ?+ t6 A
It only needs to be designed to withstand the weight of the water!
/ q" e$ _: v4 r. @1 p4 D" FWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.77:88984 t. }9 P2 I2 J. J$ f. b4 G
7 q/ V+ A) r9 q Q. jtvb now,tvbnow,bttvb
: t$ z+ X% @ L: a2 `: |The Incredible Magdeburg Water Bridge in Germany
7 g4 D7 J/ K. [' d5 X1 z/ B5 o9 ?公仔箱論壇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 j( O: q. h1 Z) n, @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,bttvb8 S; r. E2 D6 P/ F8 `; l
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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. 5 n: a/ X3 @+ x, r, M
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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。7 Y% S8 R9 i2 p" T k, K
tvb now,tvbnow,bttvb" C0 ~1 C5 H; u
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. F3 E* K! \9 T% o公仔箱論壇tvb now,tvbnow,bttvb" x8 z. N8 j: c0 J* G# x1 U6 \
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6 ?6 Z2 E2 J/ S( f0 x& cTVBNOW 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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