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。3 N# g: ?" w: t1 |" Q

' r' n: f4 [* `+ R  T0 OIf 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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Magdeburg Water Bridge in Germany  What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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。7 K' K2 e' L0 g
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
: u$ X1 f# x1 Q5 N5.39.217.77:8898It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.tvb now,tvbnow,bttvb1 k7 F( D" x/ v5 ?- [& l. ?: d
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.8 Z& b: o* Q5 _, ~7 w/ B, M
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Question:
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Did 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。% f# a8 t% R: G, p& e2 p8 ?
Or just the weight of the water? 5.39.217.77:8898. @, @$ w. P4 J7 F! e
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Answer:tvb now,tvbnow,bttvb3 E% o# n) W( @# ?0 N- |* t
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It only needs to be designed to withstand the weight of  the water! ( e: Q2 M! D+ V% f+ z; Z
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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The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb# o7 E$ t/ O5 J3 U8 B; q0 Q
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.* C5 T* [0 M7 }/ S# U% ^
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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+ K2 }/ {: K, {2 oTVBNOW 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。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. 5.39.217.77:8898$ @5 B, q% v0 p, s

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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公仔箱論壇# r- v6 |7 z# G. _8 T
連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇
8 l# Q) P  H/ Z6 l也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。0 ]! v6 E& `# J4 v: r2 Q
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。公仔箱論壇6 o4 Z4 c$ Q/ m' ^0 z# m6 |* X
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。tvb now,tvbnow,bttvb- O* \9 a: F; ]1 R
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 萬5.39.217.77:8898! [5 n! P5 e' l5 m9 j9 N
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。 5 r9 v6 E/ q( A
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5.39.217.77:8898& C0 p3 L; C+ F% w( m- 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!!