本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 $ ?$ B5 e: t6 w
4 l" U8 c3 o: H0 o5 n& JIf you are not a Physics person, read on and learn a fact of physics. 5.39.217.76# a( D$ m9 c& r
AMAZING! 公仔箱論壇7 B4 ^. M( T* P
, z: _% }( ~% P8 C+ D4 otvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb" O. c% x4 O9 r2 C7 u g9 b: u
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 8 {" [# P9 h7 i# D& \
It is located in the city of Magdeburg, near Berlin.
1 P& l6 l# b% f3 D! 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。) m6 ]( H' P2 s- r' m
The photo was taken on the day of inauguration.
, j* j: ]! q- Z0 w; ]1 Z5.39.217.76To 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。. V9 {, e& ~7 K/ s' ^$ [: g
" E( P* m1 w% e( j' |( cQuestion:5.39.217.76. D6 H+ T: r P+ D9 w
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。, ]. B/ B( r5 ?, ^ U
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,0 z8 P { _( }4 |# T. j
Or just the weight of the water?
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7 P3 D7 `; E& Z8 y) D: z3 F$ `Answer:5.39.217.766 Z( l" |' M5 i0 s8 P
" ~/ z$ X. ?2 {" Q4 v: }5.39.217.76It only needs to be designed to withstand 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。/ D4 A* I3 @7 `9 C. {# r' V
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
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The Incredible Magdeburg Water Bridge in Germany
- o* k$ {! b2 {7 Z Ztvb 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.
" k# D( o) q% S5 Z) o5 f5.39.217.76The 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. ) o# r/ B( \$ c
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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. 1 c+ c5 `; u$ m8 W9 M% M- {
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% z$ ?: k; p4 s- x" `# w& 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。
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