EVER SEEN A RIVER OVER A RIVER?
本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 : H6 e R/ A8 K3 q0 h/ J% v
/ \) Z7 P& ~8 K# Z7 V5.39.217.76If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇% [0 t2 g1 L1 v3 d8 d/ p: B
AMAZING!
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Even after you see it, it is still hard to believe! M! F/ ?" B- o" v9 t& p* U
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5 T0 Y6 O& Y; O6 XTVBNOW 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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇# U; i! L% g* E0 x( V
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. {9 t/ C: F* |1 ~( r7 J6 ?2 `
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,bttvb7 O/ }6 V; P( n5 {) K
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇" ^+ M* a' s+ m* }1 w9 A- L/ Z
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Question:4 a$ A" B: m% C2 r
7 B! \8 I# H8 b/ B) L公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
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& Y3 E4 d& |; B% Q公仔箱論壇Answer:
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It only needs to be designed to withstand the weight of the water!
/ {* q1 q/ i1 k p5.39.217.76Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded! C# L8 m5 Z; h9 v
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; O) J# r/ a7 w3 jtvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany5.39.217.76" } a6 s3 r$ x) W8 E
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.5.39.217.76* Q6 G$ v- n+ S5 c2 {
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. % u" e% `/ ~1 Y; 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. 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。/ u" S, l2 j' x5 M, l& }
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% _, N3 G+ i6 `3 _+ XTVBNOW 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。
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