本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics.
8 |) z! I! X) P/ n4 |AMAZING!
2 H' B ^6 O/ r' q( W2 DTVBNOW 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。- n9 H; J# U+ ]2 H
Even after you see it, it is still hard to believe!
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! w/ Y7 o4 u& m+ I8 T; g. {$ r: |tvb now,tvbnow,bttvbMagdeburg 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。 r- O: S2 h7 j9 X2 Q
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
* P' g' h% Z+ B7 ctvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.% m+ g3 z9 J# \: M- ^6 |) N8 U' i
; p h: i2 F7 E. l& j1 z5.39.217.76The photo was taken on the day of inauguration.
1 E2 J3 N, S7 l. UTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb! J# o8 n0 K8 S& H# T
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Question:
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( r+ ^2 S1 O2 M- |5 P公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
% w* y* R9 ?. l/ I2 ]3 V i5.39.217.76Or just the weight of the water?
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Answer:5.39.217.76/ h Z+ s, {6 c# k# Y) s
" L) y$ p& H1 g" k% gtvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water!
% |* a: h& c6 _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。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
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The Incredible Magdeburg Water Bridge in Germany; |0 ?$ c" M, [' n9 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.
) E& @. E- D' m3 x) CTVBNOW 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。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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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.
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, |* C) h2 e0 {1 M' z$ w. t/ E5 GTVBNOW 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。公仔箱論壇) C2 W* N+ Y2 @2 ?) {. Y
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