本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 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。9 ?; m$ P0 x6 q# V6 O' T, V
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If you are not a Physics person, read on and learn a fact of physics.
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/ s8 A |' N) I7 a6 u% E# M& Ptvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!公仔箱論壇. y w! J0 B! b/ {% @
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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。+ `, D1 q% w) O) l8 P6 A( W6 b
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。% I$ J4 l& E. w. g
It is located in the city of Magdeburg, near Berlin.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。5 }4 K3 ?$ j! o
( I; M* a0 X+ ^; O( {5.39.217.77The photo was taken on the day of inauguration.8 h& [) O) C6 y( y1 @ t4 C. ?
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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5 C4 K# n6 S3 ~( B" m) R& G, e! T5.39.217.77Question:tvb now,tvbnow,bttvb8 j$ B3 o! A7 ~/ M
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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。7 N# t8 K* u0 z$ i$ S5 G4 i2 M
Or just the weight of the water? 5.39.217.77& E M" m" U2 Z5 f, U# @/ X
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) |5 V) l# T! }* X, Z, e& [8 YIt only needs to be designed to withstand the weight of the water! 公仔箱論壇& G+ E7 E8 S5 o; S- f7 w/ o
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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# R: |+ E1 ^# e) OTVBNOW 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。The Incredible Magdeburg Water Bridge in Germany y8 c6 v8 H, Y0 L6 [; F& P* S
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.tvb now,tvbnow,bttvb" @0 ^& I S6 N' C1 [
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. / _* ]- A" w. K. U
7 N2 t2 ]% w3 a" e' C3 M- ?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. 7 K6 X( }7 u& q7 A. V
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