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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 5.39.217.77:8898) o% B$ N9 o9 K) r

5 n8 e: l) I/ T! X! x7 F, D$ Y; X  h: ]公仔箱論壇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。( r& t9 s+ D. Q! J
Even after you see it, it is still hard to believe!

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Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! ' [1 v3 J  W; X/ a
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
- I7 }/ X, b5 Y1 L9 ~* v* t5.39.217.77:8898It is located in the city of Magdeburg, near Berlin.
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 w) @& ^& x3 X$ y' A( A& f4 Z/ i
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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。1 x9 j( j" z" E$ Q$ R
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb' `& u8 w! T, A

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$ F2 i% G7 |" BTVBNOW 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。( M  Y' o* g, s0 Y- g& T
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
/ G* S1 ^/ M# S1 HTVBNOW 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。Or just the weight of the water? 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。+ t, r% r3 V" |) {5 ]& J% g7 m
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Answer:

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2 n9 P$ A# e* e% z6 }) B/ y- ^公仔箱論壇It only needs to be designed to withstand the weight of  the water! 5.39.217.77:8898. l8 B9 F$ w- o' `( _
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 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。% _. V# Y% O/ z; I* W
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. 9 m9 x) u/ V9 K9 R
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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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4 t! ]8 o5 N5 m$ ]- A/ i: }tvb now,tvbnow,bttvb[attach]1486500[/attach]公仔箱論壇! ~" W$ d( I- s$ ^3 C
[attach]1486501[/attach]公仔箱論壇+ }8 {4 e6 S5 U! l/ N
[attach]1486502[/attach]5.39.217.77:88981 z% e& R$ X9 i0 L: S1 j) V6 j7 F
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[attach]1486504[/attach]tvb now,tvbnow,bttvb: B3 U, u7 ]0 _# Q) T' G! 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
! u5 q7 I  d+ F# A# A" S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5 }- f( P1 K5 w* U
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。tvb now,tvbnow,bttvb+ J) ]) _4 j! Y6 S
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。
. ^, |2 N. \! \+ Y# ^2 L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。* t6 E) [  D9 j: f
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,bttvb1 C  q6 H% v, j# c+ m7 u) A5 _  w
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。
1 g& A& D4 G: R- E/ 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
3 H: x- ^8 B) W7 c5.39.217.77:8898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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