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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 ! V; ]9 L1 q% F0 {% H3 Z  e5 q

9 ?* y9 ~1 E% o- XIf you are not a Physics person, read on and learn a fact of physics.   
; {, d5 C$ h' s% s  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。AMAZING!

# L( \6 w! s9 j5.39.217.77公仔箱論壇1 `' ^8 B' R6 t4 V, Y
Even after you see it, it is still hard to believe!
5.39.217.77  y* v$ }- W* R0 c+ q
[attach]1486499[/attach]
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* \4 e8 J( ~! D2 k( S* H2 ztvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
$ d7 {2 S8 f! VThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
! p! ]/ w3 V; o4 S- E' v, N; h7 X6 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。It is located in the city of Magdeburg, near Berlin.
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& [4 M6 _% x: n+ T  F. cTVBNOW 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 photo was taken on the day of inauguration.
  L) \- c. }: Q# ITo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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; R' ]. N1 l" q2 }$ cQuestion:

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! d# s8 l4 E) H, y0 uTVBNOW 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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,- a+ t* p0 R% O- O
Or just the weight of the water? 5.39.217.77  M8 F* D( Q0 Y, j  w
tvb now,tvbnow,bttvb% N0 E# Y! i, [: C
Answer:
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6 w4 a0 J; _4 m7 q- DIt only needs to be designed to withstand the weight of  the water!
$ g8 U* F8 x' N+ ~* |tvb 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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& ~7 ?, E3 a, \$ p% w. M! `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。

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The Incredible Magdeburg Water Bridge in Germany
4 b: A" u# \3 D, k! f; l公仔箱論壇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. 4 s8 a  w; m" _
tvb now,tvbnow,bttvb$ S. a7 Z$ \$ f2 G0 @- {# c2 i
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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[attach]1486500[/attach]公仔箱論壇1 R: \5 _& p0 P" J+ G
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$ S* }  i8 e! q; h5 q. H5.39.217.77[attach]1486503[/attach]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。! B7 e3 w( P2 R) H7 K( W. h. F
[attach]1486504[/attach]5.39.217.775 M, P# V, E6 g6 y# }
[attach]1486505[/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。$ b  N1 D4 X* q8 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+ {7 Q. F; f$ d* \' B5 m
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
" g$ ?9 t) i9 N6 J, |4 ?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。
7 O+ q. m- e7 S5.39.217.77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。
3 m: M2 x/ v/ _' m; X- Z: H7 ^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
; c! S" j- b; O3 R/ f  A) G5.39.217.77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。 6 g4 R  U( K$ k0 J' [9 R
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tvb now,tvbnow,bttvb$ A" R  T9 t6 T2 a1 B# r
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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