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 2 g8 v8 x6 J$ W+ s7 P' N6 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。) r" w$ H5 p I$ S3 x; h
If you are not a Physics person, read on and learn a fact of physics. " v+ M( p: c* p1 g( `AMAZING! / N9 c& d, r/ B7 l- \ 4 O+ g% s& O- C* n" u- DEven after you see it, it is still hard to believe!公仔箱論壇; y L% m- I( j. ^8 N$ G [attach]1486499[/attach]4 B" d' c* U5 b) T* o3 e+ d
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! # G) K: y9 _" @: x' oTVBNOW 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。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,bttvb9 C5 h0 }& Z0 @- C
It is located in the city of Magdeburg, near Berlin. ) B6 G: _6 A3 S- N' n* Otvb now,tvbnow,bttvbtvb now,tvbnow,bttvb" e7 m# a8 [! H
The photo was taken on the day of inauguration. & U; y4 N6 K* ~5 q" y8 g- F5.39.217.77:8898To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. % y9 B) t, u0 N! @. I4 [tvb now,tvbnow,bttvb+ y, H- W% Y+ C! u. F, }* E
Question: ) X' X' C" f2 @' G9 etvb now,tvbnow,bttvb ) a& [' @' |3 ftvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic, , G! _. n# i2 xOr just the weight of the water? - H/ q+ s* \/ [9 W0 u) S% r, l8 X* K: U T8 M# f
Answer: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。" \# L$ q W+ _* B: h$ V
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It only needs to be designed to withstand the weight of the water! ) P7 {" ]; ^$ h& s+ @* 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 k+ Y1 I3 D2 {3 I( ~% ?0 D ( p* ]0 R1 G4 u W* O0 ~
tvb now,tvbnow,bttvb& b5 _* b% V9 [" K# p4 ~: W The Incredible Magdeburg Water Bridge in Germany0 X1 N2 U* B' R5 e4 j$ O
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. ; R+ H: W! _ U" e1 p X7 `tvb now,tvbnow,bttvbThe 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. ) T( H6 F+ `* m. E; Q+ p0 `" ~6 i5.39.217.77:8898( `; R3 A0 o. |8 U4 H1 V; s$ L
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. 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。/ X( p5 y" h; o* x* Q
7 {9 V* `+ Z* ~# v# h5.39.217.77:8898tvb now,tvbnow,bttvb0 z4 o, x! U/ o4 w [attach]1486500[/attach]5.39.217.77:8898* e, P$ Z( k9 x" t/ k2 S' n [attach]1486501[/attach] ( \ T( N9 I0 o7 D: J公仔箱論壇[attach]1486502[/attach]5.39.217.77:8898- @( S% i" E; E r. i" l' H" a9 m [attach]1486503[/attach]tvb now,tvbnow,bttvb s, i3 `. S1 c: z2 E+ M, K; m. { [attach]1486504[/attach]5.39.217.77:88987 u' e: r1 W, \% [ [attach]1486505[/attach]tvb now,tvbnow,bttvb4 `5 T) @" h" w T1 `
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