本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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) ^$ y1 _1 O4 S3 a Q/ 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。If you are not a Physics person, read on and learn a fact of physics.
& d' w t9 _# y& P9 ]1 K4 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。AMAZING! 5.39.217.76$ U5 v3 T7 a0 t {- j
; i& ^* P/ f2 T- t7 h) Htvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!tvb now,tvbnow,bttvb1 d/ y+ T# w1 S5 k
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5 W+ T% h5 B3 d) v5.39.217.76Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
8 A/ `( I# D' O. T5.39.217.76This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
% O: M% r+ ?! _It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.5.39.217.765 _2 e+ E% g$ F; k6 K, @5 ?+ q
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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* y" ^8 ]/ q: v$ {' qtvb now,tvbnow,bttvbQuestion:
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5 X3 q2 [9 R2 g% W9 Ytvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
$ _4 _3 z8 R" b! u公仔箱論壇Or just the weight of the water?
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' _! Q, O7 `2 T- k9 Y H5.39.217.76Answer:5.39.217.763 w$ l7 |; V H3 D, a! i# Q! ~
) b% @: a) m- Y4 k: l1 nTVBNOW 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 only needs to be designed to withstand the weight of the water!
! `" k0 d5 T2 a5.39.217.76Why? 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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; H% G# D) ]- qThe Incredible Magdeburg Water Bridge in Germany5.39.217.766 L% H3 X+ S% i3 t' Q1 f& b# V
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.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。+ a0 [& ], F! f6 A8 N) A
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.
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/ W( @3 V4 z5 M# }2 m. \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. 公仔箱論壇3 M, b: L) A! U% P* Y
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6 X* T2 v) f5 K( {/ i! X3 a5.39.217.769 k$ x: r8 c8 M+ c/ X( C/ X# j- r* @
% O9 [; g+ F# J3 n; n7 q2 _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。5.39.217.76! @* d$ g0 T: n4 R" z6 x
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發表於 2011-10-2 10:09 PM
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發表於 2011-10-4 11:33 AM
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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。# g/ T5 R! R6 o( k4 g- O; Q
發表於 2011-10-15 09:35 PM
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