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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。1 S( ^" {& {+ s( D
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If you are not a Physics person, read on and learn a fact of physics.   
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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。# U6 i3 E; S% g* C" c% R) V3 [9 N
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Even after you see it, it is still hard to believe!

0 h( [& [4 j5 Q5 A+ v+ ZTVBNOW 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]
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Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! ) d5 n9 y( l1 Y" T0 U4 {. r
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. tvb now,tvbnow,bttvb# u- t# ~/ Z2 b5 Y0 S! N) b
It is located in the city of Magdeburg, near Berlin.

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9 k7 D; d8 a# B/ C/ BThe photo was taken on the day of inauguration.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。) v" D5 G- |3 u0 l5 T5 `2 C5 `
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.* @' w- w% N" k7 @
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Question:

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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.77:8898" ~- a3 Q8 L4 V& d" ?  Z1 ]. i% s
Or just the weight of the water?
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Answer:

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5 _* X/ O. C* Q, m0 zIt only needs to be designed to withstand the weight of  the water!
9 T% w" G) f4 n5.39.217.77:8898Why? 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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7 S  a: J  H6 C) {9 Y3 z" 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。

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The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb: t1 q  `1 R' a  {1 j
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. 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。  N$ t: A: ], m$ B/ M* 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。  Y$ H5 O( }) t. p$ @3 }3 l
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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3 C; v* b6 t! a* T! y5.39.217.77:8898[attach]1486500[/attach]
2 ]; s( b/ J, y" {' j! 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。[attach]1486501[/attach]公仔箱論壇. u% u$ z+ ]) W" e" t' k( M
[attach]1486502[/attach]
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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tvb now,tvbnow,bttvb  N3 Z. t9 y# |! z1 r
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
0 t3 \7 u$ k/ x) |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。也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
  S+ D9 b  D$ T( U: 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。
: _/ i4 t6 ]  H( ?( J! ]* Dtvb now,tvbnow,bttvb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。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。. A$ N; Z  M; k
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tvb now,tvbnow,bttvb, _/ T: \$ z' Y& y/ `3 W' Q, |( r
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. Q1 M7 J% E: X5 i9 ]! G
2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和公仔箱論壇. {# \4 W9 \6 x9 P4 V0 e
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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