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.   公仔箱論壇1 q, l. V+ I, m' F
AMAZING!
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Even after you see it, it is still hard to believe!
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/ _% w1 i( A6 b, M5.39.217.76Magdeburg Water Bridge in Germany  What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
6 z5 v7 v" w/ ]/ i% E# iThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. & Z/ ?7 x# Q0 G; r: g  T
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.4 g6 n7 _! P6 A
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5 T1 j% W2 h; b5 O+ D/ ^/ p$ O
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Question:tvb now,tvbnow,bttvb$ ^5 q4 m# s! a- ~

5 E# z: V3 v# V/ _/ p$ I8 A3 z$ p6 |0 A公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
# _# Y* E: n" x公仔箱論壇Or just the weight of the water?
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Answer:
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It only needs to be designed to withstand the weight of  the water! tvb now,tvbnow,bttvb# |1 s( \) ~; w. Y; c: S* [: M
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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4 i: {/ Z. l# }8 b9 b7 l2 iThe Incredible Magdeburg Water Bridge in Germany5 _! K% g# I9 z# K5 \# o5 l( @
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.
) {) u: q( {) n$ c公仔箱論壇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. tvb now,tvbnow,bttvb; |# z! D# Q, j9 `' K
公仔箱論壇6 a. i0 ?2 j& T( x& `
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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# ?, x0 C; H; ^0 u
連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇
2 K* U$ s' ]8 b8 m5.39.217.76也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。! D. V" X3 _& E$ c1 d: _! L
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。
) |/ S4 |& I1 t  ^公仔箱論壇德國重新統一後，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。
% x( E" N" T' w& h! |3 NTVBNOW 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
9 w% `& C  A: U) Mtvb now,tvbnow,bttvb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。
% x+ B$ ~# |7 J7 {0 s' F9 E: S& C2003 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!!