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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
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If you are not a Physics person, read on and learn a fact of physics.   5.39.217.77:88981 A- a& |5 l0 n9 w+ N$ y
AMAZING!
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Even after you see it, it is still hard to believe!

) _* J: G/ C3 [( H% w5.39.217.77:8898[attach]1486499[/attach]公仔箱論壇# K" C2 j% E5 Z9 z
5.39.217.77:88981 Z: l8 N' f  L# i
Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
: `" @4 F* i2 c& n5.39.217.77:8898This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
, M" A/ ~2 _# z4 I5 M) N0 ?5.39.217.77:8898It is located in the city of Magdeburg, near Berlin.

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The photo was taken on the day of inauguration.
; }4 P$ ]. D' U; ]) 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。To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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$ i( H- F+ e
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Question:

* P& q' |7 d* 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。* t9 I1 _! Y& f; \. F$ D
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
6 @* W$ a* b0 k4 k1 [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。Or just the weight of the water? tvb now,tvbnow,bttvb# N8 O2 z, N' y

: b' Z1 \8 g( |- G3 J5.39.217.77:8898Answer:

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! i! s; j' F4 l2 dtvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of  the water!
' }" M: i( D4 s9 L公仔箱論壇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
' I3 p3 _% R& _! \5.39.217.77:8898The 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. 5.39.217.77:8898, S  j% }$ i: n7 l1 E

7 z+ [8 I8 x; s  t1 `0 a" VConstruction 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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. D; Q: O& M& i% r  y8 NTVBNOW 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。[attach]1486500[/attach]5.39.217.77:88986 N/ K: |- i" g6 ?* {. T
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[attach]1486504[/attach]
  |5 j( ~9 p% i8 L% M5.39.217.77:8898[attach]1486505[/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。! G( G  y& u* t5 X2 t
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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。- e) p, T/ B0 P: H4 r
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
' `% s4 }2 K6 v/ N: V/ Y3 S5.39.217.77:8898也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
0 W- v4 H& f6 P' Z- e3 d/ f7 r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。
3 u8 ]$ }2 m0 x) d- p6 a6 @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。
$ i5 I3 r1 y; m3 T/ d( n1 A公仔箱論壇於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
! _' m% l2 A4 ~  ttvb 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。 ' W+ R( L/ b1 F2 |9 y& T) O
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# B% C0 J! }) b
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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