本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 5 ^' h* M5 y6 f) J0 p
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If you are not a Physics person, read on and learn a fact of physics.
8 j4 L9 A# Z$ @9 x4 R1 e8 a4 r* p3 rtvb now,tvbnow,bttvbAMAZING!
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Even after you see it, it is still hard to believe!公仔箱論壇* C* u2 S5 A; R4 h
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) ?1 {" f! V. ]) z F/ r5 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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
6 R& b! @; ]2 X. vtvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
, g# H+ i: f# y# D. C4 MTVBNOW 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。It is located in the city of Magdeburg, near Berlin.
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# _. E. Z2 }* U1 C1 z |# t/ X! l公仔箱論壇The photo was taken on the day of inauguration.
: ^$ w- Z' B1 MTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:www2.tvboxnow.com$ a! ~ N# D" m( t1 [: T g v
! J2 O8 R& s8 c! V2 L2 L0 [公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇9 t& j( d* \( W: A
Or just the weight of the water?
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9 D- P' Y6 V- S! [4 b" B& Pwww2.tvboxnow.comAnswer:
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9 [* K2 D: C3 ]3 h. dwww2.tvboxnow.comIt only needs to be designed to withstand the weight of the water! 5 O/ S( ` k6 Q) C: a+ N& [+ ]! I
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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: z, j; V S' j& F) C; ?The 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。5 j5 R7 @: p6 b; c, `; @- g- q2 K
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.8 w5 @6 h* ~# z& b0 k3 Z: T
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. , i; O5 X" D6 I& C* `. T$ w- m
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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,bttvb2 m: a8 V% g' V; Z
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