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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
4 O- n6 q. \3 T5 }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。公仔箱論壇% Z: o" b3 {$ f: N
If you are not a Physics person, read on and learn a fact of physics.   5.39.217.76- J( Z( W0 ^; d; l. W7 ~
AMAZING!
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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。; S" l; t0 T- E& \( V
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
2 S) A5 Z* n/ E+ BTVBNOW 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。It is located in the city of Magdeburg, near Berlin.
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  ]% u1 I' m% T5 ]; J" ~! uThe 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。- b+ Q& _- ~, G& `
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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6 M9 g; g# I8 _8 M公仔箱論壇Question:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,! B- M: V# K% o7 O3 F- y! H
Or just the weight of the water?
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Answer:
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It only needs to be designed to withstand the weight of  the water! 9 O+ k. _, `- W8 y
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0 x+ {0 R9 `! \0 r- M$ D/ n
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.公仔箱論壇7 U  |( `: i5 j! F) L- c+ N
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. 2 s. r2 ^0 r5 J  U( w

- F0 A6 i1 b, E: @- W4 p/ `$ Z/ MConstruction 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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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5.39.217.760 \: x/ L  ^% Q3 ^2 M
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇5.39.217.76* y! I) D" _( A
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。7 t9 R& D; p- [6 u( W! f7 `
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。
) X. e1 r) ?6 V0 e; d4 B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。
! D" D+ ?1 P9 S6 \5 m& j9 Q$ @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 萬5.39.217.76, c+ H3 ?6 Y- {0 q- U- j
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。 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。: ^- {7 H& t; J3 P2 O: e2 Z7 c' 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
3 a0 O1 y* M6 n: b" r4 e3 Qtvb now,tvbnow,bttvb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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