本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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: X6 f/ B# b) |! Ktvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics.
! g2 b2 e( F( \7 ~0 K% t- `tvb now,tvbnow,bttvbAMAZING! 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/ T% u: E; _/ \1 K1 O
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Even after you see it, it is still hard to believe!5.39.217.77:88985 m7 V. N0 o. `8 `
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
6 @3 c4 q; h) a2 S/ K5 u7 X# i5.39.217.77:8898This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. tvb now,tvbnow,bttvb' b8 X& i* Q9 m/ K
It is located in the city of Magdeburg, near Berlin.
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* r2 D" j7 C& J& S" J公仔箱論壇The photo was taken on the day of inauguration.8 S8 l: O, H# u+ O. s
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.; d1 o# h- @# z6 _+ p, [. J
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Question:
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8 p# L5 Q2 F8 i# D公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb# W; t- p5 U8 z. ?9 J
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。2 S% m$ s' L& w; |- c
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。; m8 N) Y; w9 Z X% I
Answer:
/ |/ Y4 P7 \4 g$ U% u5.39.217.77:8898
% U( O! y+ ]4 p$ P4 gtvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water!
& _1 r% z# u1 d. I( W: g EWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded9 }/ f7 P( h; w6 { [
5 Y. P3 l8 _! c- L# hTVBNOW 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。$ x4 d$ l7 R4 b( u0 h1 ?) n
The Incredible Magdeburg Water Bridge in GermanyTVBNOW 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。( t: l6 J) T! m3 e8 g& m! `' k4 ~
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.+ Y. K; w$ V& W6 L' m6 x
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. ; e8 {, K, `% z ~$ f' _
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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.
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4 n+ |; A' u" x$ V) i2 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。
6 O! l4 o; h8 @$ otvb now,tvbnow,bttvb
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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。! V- G& G. V* q8 Z1 m6 e& d- u
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。$ q- w+ f# E1 I6 {; j6 t
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; j* a* m, P+ S3 C! O4 q( tTVBNOW 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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