EVER SEEN A RIVER OVER A RIVER?

lilitan008

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# b1 g$ L. M" o& R, R6 Q$ g公仔箱論壇If you are not a Physics person, read on and learn a fact of physics.   
% C0 I7 c4 a+ ~" N' x% ?( H公仔箱論壇AMAZING! 5.39.217.763 A" _" l2 ]: X( _& l6 |

1 e* h( X, v/ LEven after you see it, it is still hard to believe!: q. y; c. q7 ^5 F' ^  g
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Magdeburg Water Bridge in Germany  What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
5 U& y# ^5 F+ A; x; v  v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. 0 v7 {- a9 R1 X9 d4 }& {3 \
It is located in the city of Magdeburg, near Berlin.
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1 e0 y' g! }7 W5.39.217.76The photo was taken on the day of inauguration.公仔箱論壇0 o7 y: i9 x5 ?2 e/ J2 b: z
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.. J( h: W0 f- c3 V
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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。8 S9 ?& `# t, ]% c0 O0 ^
Or just the weight of the water?
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. R$ k& ?0 O3 d# O# A# H5 `5.39.217.76Answer:
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It only needs to be designed to withstand the weight of  the water! 2 A6 I" E/ b# k
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' z. G1 ]) p  b# b  l. l2 W
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公仔箱論壇  D% \5 c: S* [6 x# S8 h
The Incredible Magdeburg Water Bridge in Germany
% Y0 o2 X5 o3 v5 j9 R公仔箱論壇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.
$ n7 O  l5 x5 ]0 G! bThe 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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- R( R/ Z, {" O. U% nConstruction 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. 5.39.217.76: @/ W5 d2 c8 u$ e: G3 O+ _) u1 z

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3 Y5 b% B% J6 _5.39.217.76公仔箱論壇$ b2 R' b8 ~" Y, `, K1 L8 i
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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3 G: y$ {( I& Y% P( V+ n9 F0 h
連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇公仔箱論壇" y6 h4 x( C) M/ G* P+ y: ]
也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。1 m8 z6 I! w: [
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。  j9 \0 m% |1 g
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。
  p0 |) F) d; E# H" O3 d. y5 K公仔箱論壇於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
6 A7 D* n- |- s. d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。 7 u' Y3 E9 C2 S1 E- l
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
" R' H( _& s) M9 `tvb now,tvbnow,bttvb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!!