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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 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。& F0 S" u. B4 f+ e& E$ [, A
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If you are not a Physics person, read on and learn a fact of physics.   5.39.217.76! v- n: J% L" X" a' K/ {
AMAZING!
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Even after you see it, it is still hard to believe!
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% s0 ~6 ^5 ^# ?, T) o$ w$ P( ^; tTVBNOW 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。
% n& Q5 R' O! b! w) ^6 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。Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! $ e# Q5 l. F6 h: ~& I
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇7 ?: f, u& _( Z6 x
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.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。8 _. G! m6 J6 F7 |$ D3 H
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
# h" F3 P" j: y' ^- aTVBNOW 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 a& T7 Z) p0 i* J- ^5.39.217.76Question:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,  R5 E$ D3 o7 z' r
Or just the weight of the water? & g1 d/ x7 ?1 b( _8 L

/ X* s" g' [# S# j5.39.217.76Answer:

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It only needs to be designed to withstand the weight of  the water!
' e1 ~1 Z4 L2 ctvb now,tvbnow,bttvbWhy? 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
5 p$ Q, T: [) s2 j) b0 s( K6 NThe 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.公仔箱論壇- C& i& m1 V+ Y/ 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. 1 ?, N  G$ O8 X$ P% S9 r/ L
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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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1 N; Z( C* S1 Q9 L9 {/ ~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5.39.217.76# \5 E- H- X9 l
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
+ u4 I( P9 V7 P2 c' k3 T也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
2 m& l6 ]( I- N2 u8 YTVBNOW 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。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。公仔箱論壇# y( H& V; j& e: s3 T
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。
8 V. |# c. M# w5.39.217.76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
) \2 p/ ?7 b6 p" V- e5.39.217.76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。
' w3 }" p1 ~) o8 r0 b1 OTVBNOW 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。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tvb now,tvbnow,bttvb5 \, t$ e8 u& b. U3 z: ~
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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