本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 5.39.217.767 H" o# q! l i6 Q" `* M" A% a
0 h3 |9 i) h$ j9 ^" z& n/ q5.39.217.76If you are not a Physics person, read on and learn a fact of physics. 5.39.217.76 P& G' a) D% h6 l$ D) G* q
AMAZING!
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8 A! O" b! Z& X% ~0 L! fEven after you see it, it is still hard to believe!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。: Q- g8 Q: i% o2 c" V
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
* J1 k; d/ A! R- c3 pThis 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。9 Y- {* p% c" l- B( n! N+ `
It is located in the city of Magdeburg, near Berlin.
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+ u* j. p/ l1 V0 w, Xtvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.7 ]1 _2 A1 q% T. u8 l
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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6 i- s( Y/ A4 r# l: Xtvb now,tvbnow,bttvbQuestion:
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C9 k* d3 V& D' H* z2 B5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,, T) |2 i% j* ?2 e
Or just the weight of the water?
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It 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。5 U J( d& G/ X
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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The Incredible Magdeburg Water Bridge in Germany( @" H% _& r$ S/ Z$ R' {# _$ M# Z
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.
4 F- s; E/ i7 s% j" 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。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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2 ?' \( D$ H( b! W' t% b; aConstruction 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. 公仔箱論壇& D% O" k2 T: D9 |& V
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