EVER SEEN A RIVER OVER A RIVER?

lilitan008

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3 ?9 D/ a7 x8 o. WIf you are not a Physics person, read on and learn a fact of physics.   
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Even after you see it, it is still hard to believe!
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9 \' ?9 U' n" m0 }5.39.217.77Magdeburg Water Bridge in Germany  What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
- t4 l3 Q" p5 P4 B+ c. k( E% kThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
1 B8 l7 T) X4 }+ t  u公仔箱論壇It is located in the city of Magdeburg, near Berlin.公仔箱論壇3 w% P5 t0 N  s8 l
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The photo was taken on the day of inauguration.
, u3 W9 ^; Z  gTVBNOW 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.
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Question:( a' K. v$ t9 y8 S: X9 }: {

: l8 T& v5 b) P( O* xtvb now,tvbnow,bttvbDid 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。  l( d9 b, F% M$ U
Or just the weight of the water? 3 M2 N) z5 H* Y" P

+ h  B) R$ l5 @1 j( d- 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。Answer:
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- d8 L5 J: Q" {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。It only needs to be designed to withstand the weight of  the water! tvb now,tvbnow,bttvb1 d- o' i# r0 v. M# L$ D
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded9 S3 n1 N$ f( K3 y
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6 p5 n( r# Q. C2 ?公仔箱論壇The Incredible Magdeburg Water Bridge in Germany
$ R. B; N1 w: ?; Ptvb now,tvbnow,bttvbThe 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.: l& Y7 W6 i) L; j9 ^( @
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. " w( I* G% R% L# {+ A

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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
6 w! N4 h7 O+ `0 [$ N) q" D3 |5.39.217.77連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇5 O; T: K- f3 T2 ~7 u: L: i, ~
也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。
+ B8 B; ]2 `2 N& b. b+ Y/ k公仔箱論壇隨後的冷戰時期，德國分裂，該專案被東德政府無限期地擱置下來。
. ~( V4 w! R2 t1 v  W. T$ H' |0 o6 M5.39.217.77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。
) ?; {! z' \% C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
# f/ C' x. S2 B+ o, @5 g$ z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。
+ ]* r3 W0 H5 Y% a公仔箱論壇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5.39.217.77) K  `/ Q4 E3 L4 E- 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!!