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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 ' I- W& w7 L! ^. R5 C, o. r" @% p9 x8 v

  I& M. A# Y5 A4 T8 [If you are not a Physics person, read on and learn a fact of physics.   5.39.217.773 G8 Q) g. \8 q. f1 H9 t0 N
AMAZING!
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Even after you see it, it is still hard to believe!

. j$ q& `; P3 q# U3 M5 U8 k' [$ }tvb now,tvbnow,bttvb[attach]1486499[/attach]5.39.217.77' g1 q7 ~8 L8 Z4 l( U2 t8 ?

2 D& f9 Q5 q0 b- qtvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
  a( C' }1 x( {/ \# m4 H0 t! _5.39.217.77This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
7 z6 Y! W8 }6 H- n% N# uIt is located in the city of Magdeburg, near Berlin.
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# O! U: n9 z3 n2 a3 c公仔箱論壇The 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: d2 _! l) G2 T, |
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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4 _; u& t: R) {3 ]* T, XQuestion:

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- S2 A( [. ^( x: ~: I3 A4 RDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
8 z2 ~7 K, `# X+ U  zOr just the weight of the water? tvb now,tvbnow,bttvb  `- w+ k: @2 r! o

3 s8 Y) G! l( O. SAnswer:
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: x4 q# \" G8 ?" O: m. sTVBNOW 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。It only needs to be designed to withstand the weight of  the water!
3 p3 s( Z- ~# [! Z. d( q' V1 n$ z5.39.217.77Why? 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 Germany公仔箱論壇( r; M$ F2 X0 Q9 w4 K% L
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.
' j, o- L; l; a4 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。
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。. E( M7 H# ~; t, @+ Y
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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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# L; @2 y# x  D5 u% n: x5.39.217.77TVBNOW 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。$ c6 x; h) T, I5 s
[attach]1486500[/attach], t" k. n  J- ?! I/ m1 N7 t3 V
[attach]1486501[/attach]tvb now,tvbnow,bttvb7 g: H% Q9 s* K5 y7 p# M
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[attach]1486504[/attach]5.39.217.77! V& V! p5 D) o0 N8 q5 \
[attach]1486505[/attach]公仔箱論壇1 R9 b5 r/ Y. T, C

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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
2 ^/ ]+ M7 z2 c5 G, }3 d% ~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
3 @4 d- \3 D7 {: J0 sTVBNOW 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。公仔箱論壇, b  A4 D  I$ ~" F: A  b# 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。5.39.217.77" [! ~8 o* }) e' M' U' {- |& [- J6 K, 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。
/ R7 Z  W" b2 O6 \3 z! J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
% n" Z+ {0 m4 M- S6 z2 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。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 w& A- k$ T& H2 _- e7 I2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和5 q) l$ d8 d) T- D) Y# x  ~8 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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