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 & V0 D; @$ o& X: O1 X: r
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If you are not a Physics person, read on and learn a fact of physics. 0 N- ]3 u- H! j5 E5 }6 p- K/ y0 n' G
AMAZING! 公仔箱論壇/ z3 u7 Y3 @4 t; s+ \ ~/ q tvb now,tvbnow,bttvb; M7 C. G( z" h# j, k+ p9 F
Even after you see it, it is still hard to believe! " z1 B/ {3 z" B, G. U8 d7 I公仔箱論壇[attach]1486499[/attach] 5 r6 } w0 l1 }/ M& V* j* |5.39.217.77:88987 K" N' C' b$ W" ~. ^5 Y S3 b
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! + L( Y. O, R' V! y5 `tvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. * S" J2 ?$ M9 P. l _: S' k. b5 HTVBNOW 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。It is located in the city of Magdeburg, near Berlin. : U; ]+ i8 ^0 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。5.39.217.77:8898 h* P; A0 E' c; u# s. d v& n" \
The photo was taken on the day of inauguration. ( x! o N9 @7 f ^/ Q0 e$ f% A0 O, _To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. 5 k- W' s/ ^7 B0 S" g, e ' E( |" W" l4 S& u3 A/ l8 K% E2 FTVBNOW 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。Question:5.39.217.77:8898% y4 }3 T! D6 Z1 _+ r" g
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, 5 H; H/ d: T1 L* v# M+ g- z3 wOr just the weight of the water? 4 U9 s$ E( K- o3 U" j ; _. I4 @7 b+ X+ a1 d/ X+ L" zAnswer: 8 R& Y! p" b2 L0 m 5 L& d8 y' f4 }$ w+ t( A公仔箱論壇It 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。" h$ |) I$ B, `
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 + o3 j8 Q' x3 a$ Itvb now,tvbnow,bttvb 3 \% D3 x: R4 \. ]( x Q ! U8 k' b& Y+ ZThe Incredible Magdeburg Water Bridge in Germany - d z: ~/ t7 T( O7 f( w# [* qtvb 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. + g- S# i9 g0 |6 J* ~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. $ Y6 h, N6 f+ q L# L 5 J6 V+ I3 ~) Y% X, ~- q3 |tvb now,tvbnow,bttvbConstruction 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. 5.39.217.77:8898! Y2 U# \ ^6 e* w6 J, s7 [; x
