EVER SEEN A RIVER OVER A RIVER?

lilitan008

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If you are not a Physics person, read on and learn a fact of physics.   tvb now,tvbnow,bttvb1 y0 ]4 O; c0 b
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- I! @, `0 N! C, V) _tvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!
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7 f5 U# |" J# x5 r0 t$ z- {公仔箱論壇
* E3 v1 E9 Q" r0 Z0 A8 L# L公仔箱論壇Magdeburg Water Bridge in Germany  What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 3 w# D- S4 W4 z
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
  U/ G* f: A" q* H& [tvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb1 w7 ]( j1 f6 ^5 f: n! P/ x- [" @
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The photo was taken on the day of inauguration.
" F( H  C7 `5 k3 y4 U  zTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.77) R, h5 Q  c( ~- G+ M2 V

1 U3 Q# C) E& \公仔箱論壇Question:公仔箱論壇$ `1 s3 }  l, Z9 U
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
* A4 B  M! {# h7 jOr just the weight of the water? , K# a7 Q4 w3 B4 }/ n9 I
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Answer:
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It only needs to be designed to withstand the weight of  the water!
) C  A! {8 L8 c! @$ T+ ~/ FWhy? 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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1 t/ x3 _( N: p+ q& k  l1 U3 k( mtvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany
/ h/ g$ \; `" a" 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.
5 k/ s, K& q; v+ Q# cThe 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. 公仔箱論壇7 F* v  t/ s3 N) Q5 \
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( |: f6 {2 i* 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。- f# h4 U! Y( V2 W: O4 B, h

busyfun

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公仔箱論壇& I6 s4 T* i7 d: P% X/ A' c: u
連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇/ M+ u3 F/ y: r: K! W: g7 v- t: p
也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。
, t% K! E/ @- Mtvb 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。5.39.217.77$ }% [/ {: T0 S+ M- b( @) q
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。
  v/ `+ [# F( Y' A7 H' p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 萬公仔箱論壇, p5 d; _, |% `( }9 l/ L1 P. G
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。
  L9 O4 t7 m% X0 w4 x. p6 C! ^3 ?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5.39.217.773 k  r( o1 l/ z
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。

swyip21

多谢您的分享！

Mimisan

first time heard & saw it, thanks for sharing, thanks tvboxnow!!