標題: EVER SEEN A RIVER OVER A RIVER? [打印本頁] 作者: lilitan008 時間: 2011-10-2 10:09 PM 標題: EVER SEEN A RIVER OVER A RIVER?
本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 $ x, Q5 j; b1 z+ L7 r公仔箱論壇 ; Y3 m7 Y" w2 M6 Y9 |If you are not a Physics person, read on and learn a fact of physics. 5.39.217.77:88984 O. r* m) T2 d" ]% G4 S
AMAZING! 5.39.217.77:88986 S |! d/ G' v* ] G7 f- L! ] \ ) ?! `# k& ?9 k
Even after you see it, it is still hard to believe! " u) U& ~$ x" 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。[attach]1486499[/attach] / s& `2 y. |2 l' E公仔箱論壇 A" {% Q4 E- n6 I- \* Z$ V
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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。+ d$ v, D. N' W6 B2 R3 ~
This 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,bttvb8 c! s9 @, k9 `( e" }- Q1 Q, J
It is located in the city of Magdeburg, near Berlin. / `6 S$ H- h, q- Ktvb now,tvbnow,bttvb5 ?( O- W) f/ Z; n6 w
The photo was taken on the day of inauguration.5.39.217.77:88984 w, C- A( j C; H2 j2 J
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。6 [; M! d: }/ U4 l% x0 u/ f5 }
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Question: 7 Q* B- _2 [: W$ s: ?7 h- @5.39.217.77:8898公仔箱論壇& R% ~6 y! b8 t! C
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.77:88982 N8 [: D4 A2 S! s3 R6 ]' G5 p
Or just the weight of the water? tvb now,tvbnow,bttvb) O/ p9 S+ D( z% v+ N" e9 H
: ^, P1 E% P% H0 B+ N. |5.39.217.77:8898Answer: ! R0 T% a; t/ A( S% s 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。 & T8 [0 K+ a! `7 ~* u; jIt only needs to be designed to withstand the weight of the water! $ E; u+ Q& [/ @7 dWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded! i4 i: B8 f% }) F; H- ]" h2 y: Y. G $ ~. C* d5 J- d# J n6 o! f, d/ @: T 8 L8 a" y2 `+ H+ S$ K* TThe Incredible Magdeburg Water Bridge in Germany 5 Y5 J1 z. @% [5 I" C' yThe 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. 4 O' g, y% [' I: Q公仔箱論壇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. 3 Y4 D8 m# p8 V* m2 @/ ?tvb now,tvbnow,bttvb( d* {6 {5 t2 Y
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. : e9 q" f4 {0 i& ?tvb now,tvbnow,bttvb + c$ E% R8 B' E5 p9 L4 Ztvb now,tvbnow,bttvb公仔箱論壇; \6 Y# B% d* a, |" f$ c [attach]1486500[/attach]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+ t% J& K, K [attach]1486501[/attach]: n+ j0 ~+ U/ s M! y: s [attach]1486502[/attach] - c9 O! \: \. Z+ e$ G8 W5.39.217.77:8898[attach]1486503[/attach] ( q K! n8 u1 n5.39.217.77:8898[attach]1486504[/attach] - J9 `) I E r+ v( T# D4 L8 P[attach]1486505[/attach] / B `+ h# b. ~9 ?, o; f7 W: C( ZTVBNOW 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。5.39.217.77:8898: _+ P' {8 ]3 y" Z9 u2 l 作者: busyfun 時間: 2011-10-4 11:33 AM
