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.   
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% i0 _9 E4 E% l8 g7 ^Even after you see it, it is still hard to believe!tvb now,tvbnow,bttvb/ E: E, z. l1 Q: q) H' h2 }
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。+ F4 V. m8 a3 X
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Magdeburg Water Bridge in Germany  What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 0 A- S# B6 J: Z3 F. L
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
2 P& s7 g/ F& [% U8 g  L9 G1 I公仔箱論壇It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.  ?* O4 e9 H) u3 b7 a7 c
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.* a( v; \  D: a5 N8 F: B( H" N4 G3 X0 H
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Question:
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4 k! N( ^: k0 y6 J/ _$ |公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.76( W- p5 \$ A$ c4 Y1 L2 i0 K4 F! Z# a) O
Or just the weight of the water?
. T+ Q9 F& {, `7 w- I9 bTVBNOW 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 E7 q, z% Y9 XAnswer:tvb now,tvbnow,bttvb7 a# X+ N$ j& e2 h6 E
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It only needs to be designed to withstand the weight of  the water!
# H" z  u) |2 F5 }5.39.217.76Why? 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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! [5 M  V% }: @% L) @公仔箱論壇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。0 O0 x$ h9 [" l+ o7 m* v- E+ l
The Incredible Magdeburg Water Bridge in Germany
# q$ G' z& o2 ^, A& o5.39.217.76The 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.
* F- R' N4 e" Ntvb now,tvbnow,bttvbThe 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。: N% w/ r$ d" t' ^- z! p9 d

7 S" E" j7 |- o9 T公仔箱論壇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. + B0 l# n, m) @+ H6 x0 v
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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
* {- l' T) A% x4 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 G( v( Q- W2 c2 [! f0 w
也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。
$ t3 m2 G0 v% A' v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。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。  j9 J3 ?; d+ h; J2 I7 O6 \
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,bttvb0 g6 r0 t) C. n7 U+ r4 |8 N
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* S& p6 f; I: \$ g- Z7 a* G. Y; 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。
5 X. X) t" Z5 @( P8 Z. ?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
* c& v. e) w8 {* N0 |7 h公仔箱論壇易北河-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!!