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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 . f; i, |) ^5 R4 e  i5 z/ U
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If you are not a Physics person, read on and learn a fact of physics.   5.39.217.77:8898' `6 W! F/ N6 [* K" p
AMAZING!
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4 ?0 c& Y+ y( Z5 [3 O, p" ~3 @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!
1 @, }3 Y( C7 O5 V/ k- ~, wThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
6 {" X2 z1 s! DIt is located in the city of Magdeburg, near Berlin.

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5 G% k6 v$ H* E4 A) Q. ]2 e& U: }The photo was taken on the day of inauguration.
. u' G6 W- E4 P( KTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
5 m8 {1 f" U) O0 {+ v* R+ m* 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。
6 O1 H! j1 }1 A& ?Question:
公仔箱論壇) @+ J3 ]1 q& s

+ k4 v: {+ Z6 Q3 B! {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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
* K& U1 h5 h2 B; X7 {" s- s5.39.217.77:8898Or just the weight of the water? 5.39.217.77:88987 @+ J6 G" p9 d% k
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Answer:
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。2 U- S: M4 m$ K3 k$ P$ ^; J
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It only needs to be designed to withstand the weight of  the water! $ k6 b' w/ r( D$ F. Z* o; ~" \( W
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公仔箱論壇$ V5 i8 }& s) S* s' ^
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.
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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. 5.39.217.77:8898  C* K/ }, K' }. r
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。, \% P$ F8 e: N& R
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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2 [% x* z' G3 w7 q) a( ^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。
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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
' z6 e& U& L! U$ H+ Z) t% Utvb now,tvbnow,bttvb連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
2 D& c) |1 i3 z9 ]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。" c8 ~! E* d5 L7 `* M
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。
% `8 b( P$ Y) a  z1 I公仔箱論壇德國重新統一後,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。
$ L. z% k& R' w3 _: h, O2 \tvb now,tvbnow,bttvb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 萬公仔箱論壇: }* r0 {: R* p) U
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。 5.39.217.77:8898  U5 o) M7 y# y. i
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( E% n+ ^' r( I) D6 q, D
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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  • k23bb

多谢您的分享!
first time heard & saw it, thanks for sharing, thanks tvboxnow!!
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