EVER SEEN A RIVER OVER A RIVER?

lilitan008

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。. x  s( G) _' U! |

( n  d* C+ D* E' M5.39.217.76If you are not a Physics person, read on and learn a fact of physics.   
6 `6 v( B3 ?* STVBNOW 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。AMAZING! 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。2 Y# d* l1 k5 Z! Z4 H

; g" A0 I8 P. I& JEven after you see it, it is still hard to believe!
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2 m' @0 J2 ^/ ~$ aMagdeburg Water Bridge in Germany  What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
9 c  C2 m! x; [6 F* _This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. & h- \' s2 m/ r
It is located in the city of Magdeburg, near Berlin.
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" S0 J9 I& }7 I2 I7 H7 m: ]The photo was taken on the day of inauguration.tvb now,tvbnow,bttvb& d1 h8 ]5 K/ V( X$ d8 M( m: F
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇3 R1 g% @& b) }8 U% T, W1 [- z
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Question:
2 q+ F( ~! V" E3 Wtvb now,tvbnow,bttvb
# S8 o+ B2 X# U. a) Q- a, p5 A5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
  v6 r" K$ G  [* j$ ~公仔箱論壇Or just the weight of the water?
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$ D# @% {+ _# Z$ X/ T公仔箱論壇Answer:
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It only needs to be designed to withstand the weight of  the water! ; Q3 a9 S6 ]+ ~0 ~& M7 G* p) n
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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& y1 N. V8 b7 u- m! ~The Incredible Magdeburg Water Bridge in Germany- o) p% X5 |% e1 V4 m6 e) D
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.8 C! `3 u& ~; s0 X9 }
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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/ {, O- u6 {9 x4 G3 F! P& }) AConstruction 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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* i( C, ?, {' X$ Q6 @' V2 q# w公仔箱論壇公仔箱論壇! T5 c  i8 ^5 m& N; c4 T( T

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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tvb now,tvbnow,bttvb! h6 q6 g) V6 L+ I7 @
連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇
) Y+ z0 S* B4 H- a" u1 ^- [) I5 _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。也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。tvb now,tvbnow,bttvb/ U7 L8 Z% A, K6 g
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。' j9 g- r& s# y4 k: J5 B
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+ f! _$ [8 b2 Q
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 萬5.39.217.765 i3 d8 j2 H1 a$ |: p( X
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。
  n& O, q& w4 I7 z$ \* @, i" \tvb now,tvbnow,bttvb2003 年正式通航，水橋全長 918 公尺。 而 2003 年之前，在米德蘭運河和公仔箱論壇( K% r0 h2 |1 e- r& Q
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!!