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EVER SEEN A RIVER OVER A RIVER?

本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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5 q# S% u+ m6 }: [公仔箱論壇If you are not a Physics person, read on and learn a fact of physics.   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 j* s) j$ n, B$ d0 q# \
AMAZING!

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( q5 h9 {2 E9 z% @# etvb now,tvbnow,bttvbEven 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。0 b  f7 r) t" l' C) r
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
8 r2 g* d& Q% n4 L. Z% O: H! [% BIt is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
7 Q$ [! L" z! w' y2 Stvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb: k. i2 D- {1 ~- F

  ~% `8 U5 a- LQuestion:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇/ n5 y' a5 y/ q: p) S6 F1 l
Or just the weight of the water?
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; ^  ]% ]! o) K6 D; j) LAnswer:

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9 p2 f6 G6 x4 z; j: mIt only needs to be designed to withstand the weight of  the water! 公仔箱論壇4 X% I6 O* G; P! O& W" r
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

3 Z( B* @$ t2 XTVBNOW 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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The Incredible Magdeburg Water Bridge in Germany
1 _: g4 h+ z7 |# A9 ?& g  [4 C7 `5.39.217.76The 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.5.39.217.76; W" m8 Z! W* E/ r9 K: _
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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; r/ X* C  h; d; }5 d9 q: ?! P  ?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。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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' j' ~$ a9 A) d9 V0 A6 [0 \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。
) Z7 N6 F- h3 h8 w+ J4 UTVBNOW 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。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。4 o5 C1 t! a% [& {9 |' D6 c, O9 J4 d3 s
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平壤核子能源研究所
這宏偉壯觀、傲視寰宇的工程傑作早在 1919 年工程師們即已提出tvb now,tvbnow,bttvb2 x4 T( R- t4 S$ @6 {
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
4 ^- M2 s! w5 _- B; k* o: p; j* ^tvb now,tvbnow,bttvb也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。* U+ W9 P# d" x
隨後的冷戰時期,德國分裂,該專案被東德政府無限期地擱置下來。
5 ^# }  `4 W/ |- }( Q5 g9 B7 {! \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。德國重新統一後,隨著道路交通重大工程規劃的編制,水橋再次成為一個優先專案。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。! l& b, u$ m: a. L9 j' I; |
於1997年開始建造,經過 6 年,耗資 5 億歐元,2.4 萬噸鋼材和 6.8 萬
- e  K5 h5 m/ y立方公尺混凝土,完成了巨大的水橋,連接柏林的內陸港與萊茵河沿岸港口。 公仔箱論壇/ G$ S& O9 `% U8 ?# b5 y* Y  k
2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和
$ k2 m, K3 e- L/ V) r易北河-哈威爾運河之間運行的船舶不得不繞道 12 公里通過。
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多谢您的分享!
first time heard & saw it, thanks for sharing, thanks tvboxnow!!
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