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.   tvboxnow.com" ]. N& x# w( ~) L( {
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1 m1 m9 G4 i, `& P0 x( G公仔箱論壇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!
. F0 k/ b& m2 e- y* ?  qThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. & D4 u, j4 j9 }( Q% N# e
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.tvb now,tvbnow,bttvb0 K& a4 ~$ w2 H! Q- M/ Z
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb  J$ N! v& t7 F

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. j1 j/ c9 P; u6 |) v, S& [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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
' F: q, @- W" z6 zOr just the weight of the water? tvboxnow.com& b$ ]' S$ x- n' z. z
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Answer:
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9 Y# c  b4 `$ j  qtvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of  the water!
8 [- W3 [1 m3 ~3 [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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3 _* C+ e5 e/ G! c- m0 H, B% WThe Incredible Magdeburg Water Bridge in GermanyTVBNOW 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。  g  R4 ^9 R) h  Y3 y
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.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。# V( L/ [4 t. `7 J3 w8 T0 e
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* o9 a/ J! |1 a- _
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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
- H+ @/ D3 X7 f, T8 G% j2 _! R公仔箱論壇連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇tvb now,tvbnow,bttvb5 v  w: m2 G6 U) k3 O8 I, u) u
也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。: R& D& L, B; U1 F3 F; Y3 F
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。tvb now,tvbnow,bttvb5 [$ X" g5 e; B; C3 ^# m
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。
3 [0 |7 C) T5 J" |: F. a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tvb now,tvbnow,bttvb: F$ {$ J) R4 ]3 ?/ _9 t
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。 8 g2 A: i" \% i2 _- N8 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tvb now,tvbnow,bttvb& U- ^) n) ~5 T+ _) s7 f0 T( v
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!!