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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 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。2 j* A2 I2 A: W
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If you are not a Physics person, read on and learn a fact of physics.   tvb now,tvbnow,bttvb3 O  u  a2 R- J6 l
AMAZING!

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Even after you see it, it is still hard to believe!

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; K; x8 N7 p% ~; U5.39.217.77:8898Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
) W+ J; z# J! ]  wThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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 A0 N2 z1 F5 T% |( g& L$ @
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.5.39.217.77:8898! \9 M6 }$ {5 B4 f% p: |  F
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:

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5 r- I+ ?+ v( 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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
$ I( {5 e5 ?) N: o0 i1 \5.39.217.77:8898Or just the weight of the water?
# K0 ]! x( Y8 u  r1 u  CTVBNOW 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/ Y/ o9 b4 y, N
Answer:
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5 \0 I8 Q; f, X5.39.217.77:8898It only needs to be designed to withstand the weight of  the water! 5.39.217.77:88980 O  \/ z2 L. Q1 S
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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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。8 G) Q* }6 M1 }9 h$ y( a2 y1 J, L1 Q
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The Incredible Magdeburg Water Bridge in Germany
2 i1 U2 l# r/ a, jtvb now,tvbnow,bttvbThe 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.tvb now,tvbnow,bttvb4 J: t# J2 L) i  X1 U- w
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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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.
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。2 v: n  D) ^) D# h, L

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[attach]1486500[/attach]公仔箱論壇2 e( C0 P; Q9 O. f
[attach]1486501[/attach]5.39.217.77:8898- h4 M) j9 S' w9 f7 ^; \0 N
[attach]1486502[/attach]tvb now,tvbnow,bttvb) \- T8 @& M2 a% c
[attach]1486503[/attach]. b6 |# }  S9 p- h3 w
[attach]1486504[/attach]
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0 a* g/ {8 H/ T( cTVBNOW 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。

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
+ `  T7 d0 f: ]  X公仔箱論壇連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇: T9 @2 h  ~" f
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。( F7 c  O- z9 _5 Z8 }. w; U. k
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。tvb now,tvbnow,bttvb5 E1 I2 N; A, v2 T
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。
+ o4 i1 {* m, I! n公仔箱論壇於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: E1 b3 i1 z) j) a+ A
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。 4 K: m3 i5 B+ e! _1 Y
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。; H; T( U1 S! |+ I" v
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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