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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 # ]! s/ C& N5 g& O# {6 [
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If you are not a Physics person, read on and learn a fact of physics.   5.39.217.76% p, J1 z- L- I7 |6 W% B7 d) Y: I
AMAZING!
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$ Y! F+ O# z& j$ e+ q* V. PEven after you see it, it is still hard to believe!

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- c% O: b. ~3 Utvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! $ p. B4 _( C% ?5 T5 ?% h
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. % l- j& Y, S: r4 C
It is located in the city of Magdeburg, near Berlin.
公仔箱論壇9 `; K) N' K" a! y

% k, S8 w3 `& P' {公仔箱論壇The photo was taken on the day of inauguration.
, B% m* }' I9 ]' f0 M+ l5.39.217.76To 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。. H; B9 W4 t" E9 i8 f' K; I

% m+ f  a2 ?9 P% H) gQuestion:

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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,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。6 r" a; G. K' H7 p+ Q
Or just the weight of the water?
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( X1 W  d9 h6 A) U4 HAnswer:
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It only needs to be designed to withstand the weight of  the water!
8 E$ k4 ]6 r3 ?, O! j' n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。2 x( g- W+ A7 u3 f/ I
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.tvb now,tvbnow,bttvb( J# J* e) U. c  o' p4 Q7 k
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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, [: V3 V" X5 s+ N1 \8 N0 Ptvb 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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! d+ A" g7 V+ y/ h# |2 D5.39.217.76TVBNOW 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; C- P2 w* _3 L' D

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6 ^$ |7 \4 S8 Z5 B2 H' rtvb now,tvbnow,bttvbtvb now,tvbnow,bttvb" |: X0 y0 p& j8 r6 q$ @

3 [2 @. W/ D% }2 ytvb now,tvbnow,bttvbTVBNOW 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。8 ?9 \7 i9 v% T0 n' A* X
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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5.39.217.768 U( c" V' o7 f) E+ }
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
6 b) J# `& ?# \& _* btvb now,tvbnow,bttvb也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
: j9 s  b" {8 M5 N5.39.217.76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。
0 E$ a4 w2 Y9 U1 l* pTVBNOW 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。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。
7 N8 j' ^$ f( 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。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,bttvb! H' d# K) u8 m. F- S
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。 5 N7 w" I* D! o1 a
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5.39.217.76" Y$ ~& S6 i2 k! g/ G; e
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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多谢您的分享!
first time heard & saw it, thanks for sharing, thanks tvboxnow!!
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