本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 公仔箱論壇- W) z" e$ e* r/ y
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If you are not a Physics person, read on and learn a fact of physics.
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2 T3 `$ f' M8 k2 @2 H; t6 @9 yTVBNOW 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。5.39.217.76- U3 z% m& X3 @3 [, n2 q
Even after you see it, it is still hard to believe!5.39.217.769 O6 @) \; P& N3 P2 _! T0 m- y1 M
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' X0 v* L) i8 X# G5 _* d0 ATVBNOW 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! tvb now,tvbnow,bttvb; e$ d; ]0 S+ `
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。8 ~% n/ @( d# |2 s3 p' O/ T
It is located in the city of Magdeburg, near Berlin.5.39.217.764 ^$ T/ l, f% j+ O% p3 l, V0 A
c1 _. B) e& x8 L. R* ltvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.
2 e+ B2 B) O; L; y: u' a* g: Q公仔箱論壇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。* M# ^/ J- J7 L: b# j1 n
, ^ ^1 L+ F! n公仔箱論壇Question:
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1 z6 S- X7 _/ w/ \' }Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb" A- ]+ }, Z: R: J
Or just the weight of the water? , W! f) o; ]. Q. \: 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。% i$ C7 |8 [6 U2 s* y8 w
Answer:5.39.217.767 R [0 W$ p( L% O2 G 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。+ q2 b. W: |' G! t2 }
It only needs to be designed to withstand the weight of the water! 2 g. E2 q& i0 q7 a/ l5 ]3 L7 f
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded* k7 I2 N: @1 ?8 Q
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* X. u ?1 f+ f7 p+ K& q0 U9 oThe Incredible Magdeburg Water Bridge in Germany
7 K# y3 x6 F# F4 `/ ntvb now,tvbnow,bttvbThe 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.
3 k& C/ c+ F' ^# I- w0 wTVBNOW 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 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 R1 X) c3 q1 a& u( 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。
# i- h! D; z: V% t; ]! G5.39.217.76Construction 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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