本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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% T) B5 |/ v" F Atvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇# O7 N4 O3 B C% @8 m4 o+ \
AMAZING!
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- i( y1 @. @) x% ]Even after you see it, it is still hard to believe!
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
/ E+ ]$ S1 l- P" U' O% h- q8 TTVBNOW 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。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1 p1 f# N: { ? [
It is located in the city of Magdeburg, near Berlin. t1 B. i1 Q2 W1 h) R& U1 \
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The photo was taken on the day of inauguration.tvb now,tvbnow,bttvb$ X/ ~* k* O6 n4 R: {
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.1 P! V8 o* v% i' u U/ h' G( _
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,: G$ E& G& N9 C
Or just the weight of the water?
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Answer: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。, V4 T; v: _, z% R" I& d
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。( f( F# x6 `# r$ l. G/ z R
It only needs to be designed to withstand the weight of the water! 公仔箱論壇# U. I2 L* B8 |
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedTVBNOW 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。# c1 H+ _$ M" V& g) r8 V. H4 W3 @; N
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The Incredible Magdeburg Water Bridge in Germany
" n6 `2 K: r& ^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.
& h/ b' M: d* t) O% a9 Mtvb now,tvbnow,bttvbThe 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. . y" F) J4 c! D- H+ [
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。0 Z7 T0 U" }( D: o' C- l
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,bttvb+ E. e/ ?9 W. r5 U; M
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/ C3 g- ?0 S. A& sTVBNOW 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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