EVER SEEN A RIVER OVER A RIVER?

lilitan008

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- n% G/ |: F# e" {If you are not a Physics person, read on and learn a fact of physics.   
4 J- G( N$ S2 x/ y% ^% ^) y8 Ltvb now,tvbnow,bttvbAMAZING! 5.39.217.76* v& O9 f+ ~4 W+ y
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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!
. ]6 l7 c" F; A+ ?+ ?+ _公仔箱論壇This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
7 y' c5 b2 m: k5 [4 f0 nIt is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb9 m( f9 W( i8 Q

- m& `" {8 w, |, q# U" k- B* P3 h% E公仔箱論壇The photo was taken on the day of inauguration.5.39.217.76& m2 H0 C# H3 d7 x9 z4 s. T" F
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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% p( c' M9 |( x" V5.39.217.76Question:  e8 o5 G) l) H# Q

4 e- i2 _4 o1 K7 cDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb/ z5 z, o( o% l3 ]- b
Or just the weight of the water?
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/ a5 Y7 O0 p. {# {6 uAnswer:
- a$ i" p# a! l+ v公仔箱論壇tvb now,tvbnow,bttvb/ z, c" y  f9 L7 p2 \* Z/ x
It only needs to be designed to withstand the weight of  the water! - f1 S" i" O" z; e& v/ V
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 Y5 k6 m' B7 V& C2 u/ W
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The Incredible Magdeburg Water Bridge in Germany: |! Z" [9 e( s1 c
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.公仔箱論壇: b' ~$ ^2 X) _4 k( }4 c
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. 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。1 i7 O/ W+ E5 V& J# f5 \" G
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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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& c9 V5 g! |$ z1 btvb now,tvbnow,bttvbTVBNOW 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。$ X6 T: b" V* t* g6 B3 j

- P$ {. S4 V. j! |, B4 ]3 eTVBNOW 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。5.39.217.76: f2 \0 B! C' i. E8 w/ V) H. O6 b9 ]+ ?
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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8 }6 X$ i  x; S$ m
連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇
- X2 ^* A; \- G) z0 Z' d3 W8 Q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,bttvb6 r, ]/ E% \* ^0 Y# O$ U" T
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。
+ G1 n& l9 q% |& h5.39.217.76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。
5 L3 O8 Q: {7 x  s* iTVBNOW 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。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
! _1 j! ~" H$ r4 t& M" O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# ]9 o9 _! a$ J5 o/ z1 v0 a$ r. ~: g9 M
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. n) I* v/ n" |' q; G* R: T: I# m
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!!