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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 tvb now,tvbnow,bttvb4 I! \; N4 H) o
公仔箱論壇9 ?% ]1 F" Y5 z9 r$ ~* h1 }( K7 ]; @
If you are not a Physics person, read on and learn a fact of physics.   ) Y; ?" B- M0 X4 q  i2 r* z
AMAZING!
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Even after you see it, it is still hard to believe!

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) P; l+ P2 f6 g# T0 m* ptvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 0 x! C9 y7 f  a- Z: S3 |* n. T
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
5 z) F7 R' K% @! p2 M+ SIt is located in the city of Magdeburg, near Berlin.

+ _/ ?# y8 M( N( t: `5.39.217.77:8898
) V( ?# t1 Q" L/ Ktvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.公仔箱論壇8 e; h1 H, z+ g7 s4 v4 C7 {% J) m
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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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
+ [+ @  e' ~3 I% z) S6 u  H1 M& S公仔箱論壇Or just the weight of the water? ' }- s. _" \! g9 y) @3 ]# ~
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Answer:
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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。' P+ A5 r& ^# c3 X/ `7 r" G0 r7 u
It only needs to be designed to withstand the weight of  the water!
  A* {; s/ j5 Mtvb now,tvbnow,bttvbWhy? 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 GermanyTVBNOW 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。" q* B( `: H5 x' c, }- q
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.
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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.

$ u4 S& ^( z4 T( 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。

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/ t+ r! |; h5 Ptvb now,tvbnow,bttvb[attach]1486500[/attach]! C1 L5 |5 s/ _0 z
[attach]1486501[/attach]tvb now,tvbnow,bttvb6 y/ K1 y1 `4 I( E0 Y# \/ t7 M
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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公仔箱論壇6 {3 V3 R7 i; X  K2 E, s0 i9 ^
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
& D6 E! r5 L7 n! L3 q# k& Q5.39.217.77:8898也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
( t6 g  B! T5 s. Y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。
+ v, i" K( e& c+ n6 ]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。
/ `9 i4 {8 v% t+ Q( L8 {" i5.39.217.77:8898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
1 [3 O& B) E7 C2 F% {tvb now,tvbnow,bttvb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。
: f' [" j% f: N1 p2 X9 ]  r' S4 J2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和
3 C* T, z( s, t+ q5.39.217.77:8898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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