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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 5.39.217.77:8898$ H- s1 |- o  f/ \( u' r5 [* S
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If you are not a Physics person, read on and learn a fact of physics.   5.39.217.77:8898+ \" F3 p( h/ @7 u( q. K
AMAZING!

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: V  I6 K) o, B( l" z6 ^tvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!
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公仔箱論壇0 ^5 u- H% p6 w1 O  a7 b$ K

+ ?7 u' B4 Y3 d0 p# Y公仔箱論壇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。9 @( L1 `, u, S2 j; |$ L
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. * K! P9 y# _9 m9 L$ ~4 |
It is located in the city of Magdeburg, near Berlin.
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; j* G. z7 v; I4 y3 |" k7 o0 ZThe photo was taken on the day of inauguration.tvb now,tvbnow,bttvb9 r4 c9 |, T! I9 c" p/ ~4 \9 D+ L
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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。# o% o# F: X" F/ @0 c' L( t! v

$ o+ `7 J" ^( h% _# P" {5.39.217.77:8898Question:

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% M& t9 U; f( dDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
1 |+ G6 m6 n* H) N+ W  ]公仔箱論壇Or just the weight of the water?
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9 C+ y, m" x3 H+ b公仔箱論壇Answer:
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* S& U7 B- f! T- J- i1 w" X4 }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。It only needs to be designed to withstand the weight of  the water!
* _, f; }- Y- U, @, @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 Germany1 ~! b  \9 Y: p' w. h
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.. @  T, Y! e- \7 @* T! S
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. 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。* K" f5 Q( ^' c8 F( ~. f! N9 S5 p

3 L$ P2 n  B. k# R) YConstruction 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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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。. x& k" x8 ^) _) u& C. E3 C8 t

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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
8 |* F( J6 D' E: B5 F0 D, 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。連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
* `- f( e; l4 `. otvb 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。
/ v- {* t0 c. L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。- U& p; E1 z$ N  C" k- `" w
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。公仔箱論壇: I( r! a: x# x) l" Z& u
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
. K. |# l9 Y+ 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。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 U! p6 l4 K4 A& G: z2 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
. F# a5 r0 \. z; r/ Z3 o5.39.217.77:8898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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