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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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  S, B! z- S' a% N5.39.217.76If you are not a Physics person, read on and learn a fact of physics.   
/ O' Y  w# [! g) x4 P1 c, Q" I, n* YAMAZING!

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Even after you see it, it is still hard to believe!

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4 F# o+ O. g* u+ dTVBNOW 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。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! `6 o0 E$ m# Z+ F2 C/ [
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
! H7 N1 l/ n) f: I* DIt is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
; F1 _5 G) J$ R9 O  ~' z: ?公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.76) P5 C: B/ U# t# {& g' f/ ^- i

( C2 ~% j$ n* r7 W: y( XQuestion:
公仔箱論壇/ `1 @$ a* G9 u8 ]) b- l* g7 i

, ]7 b) f( j  N' g, [- X5 nDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
" b3 _1 D' H, E6 i0 V( s5.39.217.76Or just the weight of the water?
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1 a4 X8 g! u  F3 C公仔箱論壇Answer:
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& u9 U4 S) K# @- b* F9 w7 xTVBNOW 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 only needs to be designed to withstand the weight of  the water!
' p- W( k4 \- ]2 b( l* {% m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 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。' d. x- u1 P0 V& P/ ^- G
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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( u. ^. j) F+ x% Utvb now,tvbnow,bttvbConstruction 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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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。- m- o4 w% d# B  P) L0 U4 f

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( B5 N, C. H" m, m# z) ntvb now,tvbnow,bttvb5.39.217.76- l% X! Y6 S2 x& g5 f9 J5 r
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4 l0 r% L3 d& N& D公仔箱論壇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( s2 x9 H6 h2 N$ N1 n
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平壤核子能源研究所
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
/ Q1 |# K; t9 O! ]+ x5 J2 I' _連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇# p7 T1 P8 z1 y0 `6 Q7 L
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。* r+ T: v" R/ N  V
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。1 m- U8 q0 y+ M& b4 y  \
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。
1 ~9 I% K4 z3 \5 x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
, U2 t0 \8 I: I5.39.217.76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。. K' ?; ^, [. B( F  t" ?
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5 H" C8 f- S. v" 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。
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  • k23bb

多谢您的分享!
first time heard & saw it, thanks for sharing, thanks tvboxnow!!
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