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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 公仔箱論壇9 W0 z0 x8 @- E& k9 I, o3 V

; ]0 q; r7 [7 M- i# y( |' a9 M公仔箱論壇If you are not a Physics person, read on and learn a fact of physics.   
# ?2 p7 M9 N2 O: U# i0 lTVBNOW 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。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!
) H9 _' i8 c7 G8 r% K7 m9 v; 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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
/ G  V* U. h: ?4 U( A7 c" UIt is located in the city of Magdeburg, near Berlin.

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$ y; v1 X- `- |+ Q公仔箱論壇The photo was taken on the day of inauguration.
, e) r- r0 I# A- ]3 m5.39.217.76To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.76' I! \/ T/ P' p7 O/ w& \

' A! F/ I% t0 i1 qTVBNOW 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。Question:

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, E9 p" l6 y; E& f, Vtvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
( ~7 b0 p4 E( T9 }5.39.217.76Or just the weight of the water? 5.39.217.768 n* {* X2 H6 \6 Z
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Answer:

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It only needs to be designed to withstand the weight of  the water! 公仔箱論壇% |6 Y. q' B, p) 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
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5.39.217.760 S8 k! l/ v( a4 [5 z! a$ u% k$ j' H
公仔箱論壇2 L8 w8 D3 n$ `0 ?4 r& e9 f2 e  e
The Incredible Magdeburg Water Bridge in Germany
, A% G/ z1 w' pTVBNOW 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。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.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。. J! n( M4 g- O0 ~/ p  q5 R& e
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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. I0 q5 i$ M2 ]# R公仔箱論壇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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+ c4 I: B. ^. e/ J. l5.39.217.76
9 C9 X5 y. U& {8 H' q8 \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。tvb now,tvbnow,bttvb* h' I" y! h# b+ Y8 ~+ s9 h; 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9 E, I% u. ]3 c! X3 L  b( P" T
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇  L7 A  l. e, d1 ]8 t
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。$ k: G. ]- h3 c6 M* A" V
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。
* H6 H  }4 i3 P# E* q9 x1 C3 o5.39.217.76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。1 t; F; f, ~! ~
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
- x5 h7 O) G$ J2 @6 JTVBNOW 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。 5.39.217.76+ O% H2 a) b  Z4 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
" z) \8 y/ ^- a# }& k. @7 @公仔箱論壇易北河-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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