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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 7 [( E5 ~- S* F! h) B* v; v

7 V3 |" K* B1 x, g" `4 eTVBNOW 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。If you are not a Physics person, read on and learn a fact of physics.   5.39.217.77:8898* ?/ A1 S! ~4 x; D
AMAZING!
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Even after you see it, it is still hard to believe!

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8 j& r% [  ~9 x  q5 `; ]# {1 F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! tvb now,tvbnow,bttvb9 m8 c( u9 W# `2 O6 B) ]
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. + s2 G+ S# n0 r) c+ D
It is located in the city of Magdeburg, near Berlin.

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2 `% ~2 C8 v; v0 j9 p# q% `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。The photo was taken on the day of inauguration.. c- i6 m$ z8 a2 I
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:

3 R1 n# N0 A& k- R% [+ y. xTVBNOW 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 f: J/ c& Z( p3 |tvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,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。: f- y0 Z  ?$ h+ s9 u
Or just the weight of the water? 公仔箱論壇' I8 e' Q. k6 b0 f. d

: d: W1 \* m+ T6 o+ H2 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。Answer:

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7 l* ^+ \- g# C& Q0 Q1 w$ `公仔箱論壇It only needs to be designed to withstand the weight of  the water! tvb now,tvbnow,bttvb; k' e. o6 v1 x7 Q- a2 @
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 Germany5.39.217.77:8898  ?7 O; O+ A  O4 k% v0 C
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.
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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. 8 G7 \" S# k- j; m' R
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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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[attach]1486502[/attach]5.39.217.77:8898- k. D2 @2 Z9 A
[attach]1486503[/attach]5.39.217.77:88987 a0 u8 g1 v! k" Z: m/ D% I
[attach]1486504[/attach]公仔箱論壇! U  A( w% O3 B
[attach]1486505[/attach]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。# z6 m, `4 u# x1 \
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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/ z5 b9 F6 W+ T& m' r# f
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇5.39.217.77:8898, B+ {. W( [' F5 |6 F
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。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。5 h2 h3 B7 [( _" B; @2 \  \& C, {
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。5 O9 B  `$ C" J# N4 G' v
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。( b; f! c$ C$ o. B
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! r% G. y7 m9 ~0 a* I
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。 公仔箱論壇# y- ]3 {6 `# g2 x
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
- _7 b8 D) I6 l$ [8 WTVBNOW 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。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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