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 }! V# g/ T# M) f2 K
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If you are not a Physics person, read on and learn a fact of physics. ( c! t1 P: l; m& @( JAMAZING! 5 J9 |1 P3 S7 ?7 sTVBNOW 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。 w7 J- K8 |( X {
Even after you see it, it is still hard to believe! ! {: @+ T2 _( Y5.39.217.77:8898[attach]1486499[/attach] 5 n4 v; X. e- }/ ~6 ^ c; S公仔箱論壇 $ e" B4 d- m m: c; {Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! E/ e; i6 N- Ntvb 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. ) P: o& @3 i: N4 h( _! V4 W$ b+ J公仔箱論壇It is located in the city of Magdeburg, near Berlin. 1 R; O% P8 |0 m! w+ U5.39.217.77:8898 ) L9 d1 H+ S6 l% C5 C" w5.39.217.77:8898The photo was taken on the day of inauguration." f, C. a+ n$ k8 ~2 y& _
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.* r; ^4 ~+ F; _1 V$ R6 s
. u, e+ j1 r$ C! K1 }5.39.217.77:8898Question: 9 Y F# E& _7 K5 b+ v$ I: o公仔箱論壇5.39.217.77:8898, v5 Z7 s' }; E
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, 0 y# G5 ?* u: 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。Or just the weight of the water? 8 `- Q# P$ O( h. L
0 `: B) g' b1 H) }0 x' F1 y" Q6 ZAnswer: % E9 P9 u+ [/ K* @2 gtvb now,tvbnow,bttvb公仔箱論壇5 ?) Q, E; X, i9 a
It only needs to be designed to withstand the weight of the water! : l5 N6 {* e. k* y( w4 q公仔箱論壇Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedtvb now,tvbnow,bttvb$ ]1 Q# X( p$ d) _' S* e( P F 5.39.217.77:8898' u& P$ b- g; F8 R4 M8 ]
2 l4 @$ X+ J" F. }( P2 ?5.39.217.77:8898The Incredible Magdeburg Water Bridge in GermanyTVBNOW 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 B0 U. C4 |- n/ Z
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. T% c9 p$ l9 {+ T2 xThe 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. 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。8 y# s4 q4 a U! D: H; T; V! w
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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. 5.39.217.77:8898% H8 _% A, t6 ]9 }
tvb now,tvbnow,bttvb7 y, o# j8 R2 V
( R. Z+ a$ E$ E% `' Q公仔箱論壇[attach]1486500[/attach]" X; M% S Q3 ~3 Z. C, g [attach]1486501[/attach] 0 X7 q' C8 y4 I8 J/ z4 r/ d公仔箱論壇[attach]1486502[/attach]5.39.217.77:8898: g u+ e. w" K5 D [attach]1486503[/attach]5.39.217.77:8898% @) H+ g% S: q' w7 J [attach]1486504[/attach]% U$ C( c0 h& ^- i [attach]1486505[/attach] 3 T5 W. k: B7 U' A" Rtvb now,tvbnow,bttvbTVBNOW 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 t- f; d% P9 v6 n 作者: busyfun 時間: 2011-10-4 11:33 AM
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