本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 5.39.217.77:8898* m# `4 D+ N z0 j$ n
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If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇+ W0 X& d# F6 V0 d2 H0 [; M
AMAZING!
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Even after you see it, it is still hard to believe!$ ^3 ]/ C: Q* L; U; b7 x4 K! o+ E
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2 r- H( C4 d9 i4 `' O; }; R& cMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
3 z# Q" Y+ g& |This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
- k2 Z$ O D: [1 A5 B+ W6 Qtvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin./ v, a# Y' {8 w$ R" A- _; ~
5 c" `) E K' w u0 t# UThe photo was taken on the day of inauguration.
3 `1 ]* w* @& V' {( R. ~' _tvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:" I- L7 G9 ~6 n2 z3 i8 k5 w9 i b
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb. A4 X- P% c X- @0 `
Or just the weight of the water?
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8 p- I& ^3 j- u& d0 b5 F; o' ?: gAnswer:) Z, |' r3 c# p, ~9 V/ N8 D4 C5 ~
+ K2 o. O! ?& f; nIt only needs to be designed to withstand the weight of the water! 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。+ A8 w' n& P' d6 q) V2 C8 [
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.77:88980 R/ Y# `: @: Y9 T" q1 H3 W
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# n: i* [: b2 _& b3 O5 ^* G1 [2 PThe Incredible Magdeburg Water Bridge in Germany1 b& p2 J0 v' H/ a/ {
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.
/ F: A9 [/ W$ M! ?0 {5 T& d. vTVBNOW 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 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. 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。6 D4 B+ |7 y3 {2 O+ ?* g
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。$ ~& i0 B0 j- C: O
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