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標題: EVER SEEN A RIVER OVER A RIVER? [打印本頁]

作者: lilitan008    時間: 2011-10-2 10:09 PM     標題: EVER SEEN A RIVER OVER A RIVER?

本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics.   ' n# d) ^2 p* o/ J$ L3 m
AMAZING!
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1 S" d& w6 |% p  \  B3 _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。Even after you see it, it is still hard to believe!

6 J2 c% a0 S( t5 g% 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。[attach]1486499[/attach]tvb now,tvbnow,bttvb3 W- T9 E: A3 A! n( o( a. p

' I" F* E$ t3 }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!
' A' Q! f, q% Ctvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5 D, e! p) N* M
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.) ]2 K' i/ s( K+ p0 E4 x* V
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists., Y+ ^+ S' R6 g/ k  v* `: U4 v8 T

  q! q  N% z7 A公仔箱論壇Question:

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# j, _" b9 o& |" W& \8 Rtvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
+ l5 ~6 g8 G/ s1 t2 o; D+ AOr just the weight of the water? # w3 W, {$ G( b2 M' T8 }

/ I" u0 f/ l$ d3 B4 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。Answer:
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It only needs to be designed to withstand the weight of  the water! 公仔箱論壇8 [, r- T' Y4 @+ Z! X/ k
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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% E; a1 g. d4 f6 ~( d. f2 H" 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。
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The Incredible Magdeburg Water Bridge in Germany: M/ D3 u) ^1 a  [; a3 o
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.5.39.217.77:8898: d& N! s) V+ Z# b5 c3 k
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. 公仔箱論壇! {6 H; |- A5 w4 U/ W
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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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+ J( ]* }+ \- ?) n8 ^# e& Stvb now,tvbnow,bttvb[attach]1486500[/attach]
+ t; H: K( o7 i/ M; p* |& iTVBNOW 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。[attach]1486501[/attach]! x% o$ p# K. `( Z
[attach]1486502[/attach]公仔箱論壇' p+ l8 x2 F3 \  ~" M
[attach]1486503[/attach]
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[attach]1486505[/attach]5.39.217.77:8898( b4 ~# C% `6 s8 |3 y! _) }  ~
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。* M8 M) z; G4 n9 J- U5 }+ {

作者: busyfun    時間: 2011-10-4 11:33 AM

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
" f' `( _8 `8 @) ], Z; K5.39.217.77:8898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 ~0 p7 H9 K* D$ ?% y: y; h9 V- B8 M
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。公仔箱論壇1 P; F% K( i3 n7 y3 b
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。
' J9 l& J, @# [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。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+ b! n( _" A6 |/ W* r3 @9 o
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
. f- G/ E! P' Z. t公仔箱論壇立方公尺混凝土,完成了巨大的水橋,連接柏林的內陸港與萊茵河沿岸港口。
2 o( h- A3 j; F! G6 P! P2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和& O  `$ I) C2 U. Q
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。
作者: swyip21    時間: 2011-10-7 10:19 AM

多谢您的分享!
作者: Mimisan    時間: 2011-10-12 11:01 AM

first time heard & saw it, thanks for sharing, thanks tvboxnow!!
作者: pepperjellabies    時間: 2011-10-15 09:35 PM

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