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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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% J6 S3 y& A; s7 O! o( M6 VTVBNOW 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。If you are not a Physics person, read on and learn a fact of physics.   
5 e* ^* L& s4 o8 A! zAMAZING!
5.39.217.76% @4 p; X; Y2 K( N
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Even after you see it, it is still hard to believe!
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7 H, u8 O4 ^% M3 y! k5 |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。Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
2 W$ M  A0 G3 T- uThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. tvb now,tvbnow,bttvb# T1 N5 W9 s- p" W) R2 |: C
It is located in the city of Magdeburg, near Berlin.

/ u! [9 s* {/ A' Mtvb 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。; t1 e6 I+ F% T5 D
The photo was taken on the day of inauguration.
) P5 m0 I1 D3 O/ n% j! c' d1 i2 fTVBNOW 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.公仔箱論壇" Y/ ]  @+ r4 c( M
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Question:
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 d9 ~+ q0 S. ]. S3 T- |* [  k

/ Y3 r* v5 N. Q, @+ G* L6 ]; c$ J3 LDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
. g& C. u. `3 C- F) q  pOr just the weight of the water?
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Answer:
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It only needs to be designed to withstand the weight of  the water! 4 a9 }4 N, u8 L( Q3 J0 N) A) }
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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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。/ o& x; u$ E6 s5 J4 v
The Incredible Magdeburg Water Bridge in Germany5.39.217.768 ?5 l0 u4 g  f
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.3 M" t! J/ x/ W# f4 f4 V8 p: ?. l
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. tvb now,tvbnow,bttvb3 r5 O+ o% X( ?/ H7 R

0 O/ B2 \/ R# ~% O& i/ w& O  Ltvb 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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* H' L; ~, s% P, @# o" l) ~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。5.39.217.769 y+ f6 V$ Z% d" e; Y

. z5 v2 Z: Z6 |, S公仔箱論壇
# A4 G: b+ q4 wTVBNOW 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。$ N) f+ ?' A0 L, i5 b

+ y; G+ E/ N5 k' l7 X( JTVBNOW 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- |! q' V: R3 T: n* S
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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+ E% p! z" r7 w5 k, q5 Q( \( G
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
; {4 c! O0 J9 o7 M( y7 |5.39.217.76也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
/ q- u% \( s/ ~  L5.39.217.76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。tvb now,tvbnow,bttvb( w% I: d, i' j# M
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。
+ \. W7 k1 n$ D+ r0 r8 I7 E9 htvb now,tvbnow,bttvb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 萬公仔箱論壇9 N+ _9 x( E4 g; [7 n7 S  H
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。
( l3 \3 a" k: R* u+ W2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和
) H/ H4 i- ?& C: \4 T8 p( ]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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