本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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: ~6 n w* b( Y& L' e% t+ 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。If you are not a Physics person, read on and learn a fact of physics. 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 x( Z' G( v, E. G
AMAZING!
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0 {% _0 Q2 K: V% J2 m! J, `5.39.217.76Even after you see it, it is still hard to believe!
5 [) ?$ T1 {0 w: 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。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。! W# z8 D) @0 \# j) k8 ^
0 g- P4 d0 ^9 c T+ r6 X& x% s5 g0 m公仔箱論壇Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
8 m3 M) ?" A9 [' R: u& h$ j& h5.39.217.76This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
; R* Q% a$ m e7 l; mtvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.
5 S4 i( Q! H. ~! jTVBNOW 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。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。9 r4 v6 @+ F# o8 \8 C
The photo was taken on the day of inauguration.
1 W& j8 B4 t- b% B5.39.217.76To 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。5 ~5 _& _9 W7 I, l. D9 s, S9 y
) o; x& D" q% w, P, ~4 oQuestion:
8 Z& _, H( p4 mTVBNOW 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。
, m3 h: ~- C6 V% \, S4 M5 X& F. \, cDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.76. e6 S% j* }7 b+ F; H% [2 l" D
Or just the weight of the water? / D( m: Y) H9 D
1 y2 `" s0 c" c( U1 |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。Answer:
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It only needs to be designed to withstand the weight of the water! 3 d8 T: H7 G5 J8 b+ h7 J
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
2 N4 O# s! q7 V+ y5 t( B7 e+ C% K公仔箱論壇3 O O+ }* X- ]; L( F
5 |5 j- v3 p+ |0 [The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb( t I' \1 y" _) Z% J8 O$ Q" L3 q6 A
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.公仔箱論壇, `8 E; H* D+ |- O% g; 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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i; f* n' s; U9 f7 u+ _: O5.39.217.76Construction 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. # g8 }5 T: R/ H/ y5 o. U, N
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 ^" H* d" b! `
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6 G( T1 c/ J$ {, J4 E9 p! c# x5.39.217.765.39.217.76/ ]& Z2 J! o, R1 u
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