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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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If you are not a Physics person, read on and learn a fact of physics.   公仔箱論壇/ I+ k3 i% K6 \5 W
AMAZING!

1 Q6 d3 k/ o* k7 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。
7 \0 O- ?3 ]9 x1 ^. _公仔箱論壇Even after you see it, it is still hard to believe!

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Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb$ I3 [+ H% I; a+ W$ l3 [
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
. r+ y7 [6 |6 K2 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 is located in the city of Magdeburg, near Berlin.
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8 z8 ?' v3 r+ s# R5 ]% @8 T# j1 DThe photo was taken on the day of inauguration.公仔箱論壇9 Y4 \6 V- G% U1 U# [
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。8 w( X$ y! A* {; \: {

) K7 k8 A# _0 \3 QTVBNOW 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。Question:

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- j" z& `5 m8 Y  WDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.76( a7 I$ Y; j, L/ Y3 c* r
Or just the weight of the water? 5.39.217.765 K. z$ ^+ ~! K$ h& J1 k% z, _

6 Z8 _: H- b9 q5 f1 G4 g公仔箱論壇Answer:
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' Q8 i: K& P6 q

* |. `& x5 M. ^- ~! E8 F公仔箱論壇It only needs to be designed to withstand the weight of  the water! 4 E  k3 ]7 D) }5 M  V1 Y* k+ H
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。4 G& e' n% j. ?% h) B5 h
The Incredible Magdeburg Water Bridge in Germany
6 y) c8 V. ~# B% L3 i9 KThe 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.0 o9 ^4 b5 D9 E. `$ }/ ~: |( A
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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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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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。9 V4 U$ a, N$ F) w
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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
7 L( v7 ~/ d; ]# q  I! \' |7 s6 K公仔箱論壇連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
( I8 R" s- U8 _. e0 a! b也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
" ^0 t6 J/ k6 u8 qtvb now,tvbnow,bttvb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 P' `- S: S$ ^8 z3 E( H; |tvb now,tvbnow,bttvb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。公仔箱論壇! ?$ U8 o: @8 X5 g4 n! p
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
" w0 s$ a, D8 D/ N) F7 \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。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。 公仔箱論壇- v# F. \. y/ x2 U# k% ]
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; a0 J. S/ S- A. f% R) 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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多谢您的分享!
first time heard & saw it, thanks for sharing, thanks tvboxnow!!
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