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.   
! N8 X% y$ H. o9 l8 `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。AMAZING!
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1 p- Q  _8 _- s% [* _2 C3 W公仔箱論壇Even after you see it, it is still hard to believe!+ J8 f3 |. D2 Y7 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! ' y- V% `8 D  ^4 m1 T4 ?
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇: {( k8 J% G  e+ q; _* X3 N1 e
It is located in the city of Magdeburg, near Berlin.- C* A& b# y( j: w9 d. t6 [. I
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The photo was taken on the day of inauguration.
! F/ L& j% `& Q. {0 ~$ I5.39.217.76To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:* U2 T1 y2 y6 u
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
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It only needs to be designed to withstand the weight of  the water! tvb now,tvbnow,bttvb5 X: F$ Z+ I  B% P( V  w2 D: C6 Q
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.76, a2 F- L7 W0 g% R: ~# x

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The Incredible Magdeburg Water Bridge in Germany
2 l3 o5 ?# u* I( V7 L5.39.217.76The 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.
7 ?7 E' D6 ~/ @7 KThe 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. 公仔箱論壇7 m+ _! e6 z* L+ m: M2 S5 k/ e6 w
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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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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5.39.217.76# a; p! P% y& {( a4 X  f7 t2 _+ u. v
連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇- b/ G$ c7 c1 _7 f9 Z5 i
也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。
# q- Y4 R, y+ v  M4 G- u+ j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。公仔箱論壇4 `% x+ |8 O# ?' O1 s" W
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+ H! E! f( u& k3 P
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
; @# W5 \" B) w" KTVBNOW 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。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' \8 x( `3 ?  Q* D+ F
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
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swyip21

多谢您的分享！

Mimisan

first time heard & saw it, thanks for sharing, thanks tvboxnow!!