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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
; Y" n' ]5 K: E. i+ D* ]6 ]tvb now,tvbnow,bttvb
. P4 L% o; T  O7 L2 W& \5.39.217.77:8898If you are not a Physics person, read on and learn a fact of physics.     n( m9 |" n- B' h. y
AMAZING!
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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。  a& Z2 b) _1 t. B" _/ ]
Even after you see it, it is still hard to believe!
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[attach]1486499[/attach]公仔箱論壇5 W9 i! P. A) Z: _' l! H
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。* w* }$ W, l$ k; X% S. y/ |) m* u
Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇7 U8 G5 Q0 `# y- t! c$ {
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
' T5 w: W6 \+ |0 X, f6 ktvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.
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9 |/ ~) p( Y  x7 j6 A5.39.217.77:8898The photo was taken on the day of inauguration.公仔箱論壇/ r; I8 p7 C( v$ b
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.- m1 Q) D6 x' J0 o: j& c
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。3 \& p( x9 u2 V2 }, d
Question:

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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb2 Z8 d" o8 l- f9 ~2 Y  ]8 W. e
Or just the weight of the water? tvb now,tvbnow,bttvb0 h: a) G! v5 p4 l, J9 i; ?
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。9 L' Y! A$ @: t1 u0 c6 x: \: C
Answer:

0 J2 V! Y9 |% c0 Q: I$ t! ~9 JTVBNOW 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。' u, B( d( {+ r1 V3 W, `
It only needs to be designed to withstand the weight of  the water! 公仔箱論壇# o: Y( E* `+ ^3 l+ _% D
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 Germany& E! P0 g1 t8 T2 _% 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.
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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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0 _& a' F) F+ x% p: W4 o  [[attach]1486500[/attach]
+ P9 y6 [9 V+ [) B) f, m1 J[attach]1486501[/attach]5.39.217.77:8898& i6 C( J1 ?% W
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# \. U( k1 t; |8 _2 U% z2 [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。+ n3 t, E9 Q8 o6 m

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。4 g7 A# [% ~% g- X: l7 d
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇/ H# u. W1 v' d/ _3 t1 o! Y
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。5.39.217.77:8898: r( u$ V6 D$ F0 K. e
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。  [  Y  `6 j8 V$ G! f0 p4 w; ]
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。) I/ X7 ^# h& d- {; L; Q3 d
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
+ Y: h2 s" {, v; v% o9 ^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。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。 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 x# Q; i8 @. j- _0 P
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。) \( J! M* n/ N+ W8 |# Z2 p; n
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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