本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 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 w5 \2 r0 ]* c, c! [, f$ |" z$ }
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If you are not a Physics person, read on and learn a fact of physics.
% ^* y" b8 v9 J+ 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。AMAZING! o, u9 j1 `2 a% ?& ]: J6 S
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Even after you see it, it is still hard to believe!
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Magdeburg 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。) m( i5 \# i; S3 K* Z7 R
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
( H) S- c: r: | m- {tvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb) {3 f3 o# e s. T
1 y0 x) `6 n( f" O1 ~8 j; A1 ]8 vThe photo was taken on the day of inauguration.
# M G3 l# w; l# U1 y$ p( |公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.7 c! _# q' A, u
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Question:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
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! ^ D+ V2 b7 U1 ?; `3 f4 \公仔箱論壇Answer:tvb now,tvbnow,bttvb1 {7 C+ J7 s1 a9 O$ l
. z% [) _0 ]4 M5.39.217.76It only needs to be designed to withstand the weight of the water! 公仔箱論壇 F& r5 @) o+ i
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" @# C8 o4 L" s) K6 u2 p. L( R) {
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。3 @3 {- I6 Y1 M* `$ [
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. 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。* K5 C, T7 ?- K& P5 I
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* N7 `" N- R4 T) d9 ZTVBNOW 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。
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