本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 $ `# E/ w) S/ y2 h; p* G; W8 W/ Q
: B! V* n9 b& f1 jIf you are not a Physics person, read on and learn a fact of physics. ; n3 q) q; M% E7 m( A( w9 V
AMAZING!
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* T! Y- h# b V ]公仔箱論壇Even after you see it, it is still hard to believe!
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/ y' M5 Y2 d& L8 F) f3 o5.39.217.76Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
% q* m$ c9 T& }. V$ o4 K% I- i& A9 Ttvb 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. 5.39.217.766 p4 s3 e; W8 i+ S: r. S+ w9 F
It is located in the city of Magdeburg, near Berlin.
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2 M! q, ?" x' m+ K H" gTVBNOW 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 photo was taken on the day of inauguration.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。8 @" g/ s/ a! q$ G3 Q, P0 `8 |
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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1 d+ Z5 j5 |$ @, S( v2 J" s9 Ytvb now,tvbnow,bttvbQuestion:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.76 d/ R% N6 l: t. J( X8 |9 P
Or just the weight of the water?
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/ s! J% T9 x5 ]! x1 f; \Answer:
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It only needs to be designed to withstand the weight of the water!
0 f( M( _/ n/ j2 j5.39.217.76Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded
( L: q0 }2 \1 D, P7 I1 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。
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$ u" r6 @( n. J- u w! ]The Incredible Magdeburg Water Bridge in Germany+ L& Y# L+ `& E2 V4 ?7 E
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.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。 L: h3 H# s _1 s3 s# J
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. 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。/ k! I# R" e" |4 x- i* U
6 {+ J% V) X' g8 U2 NConstruction 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% w& _0 X6 c; @ x( H) O+ T
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% d# \7 g- ?( l, t hTVBNOW 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。/ N. }6 x6 [) S8 t; C/ O9 }
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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 ]" d/ n5 V7 F; Z) {4 ]7 Z+ _2 r
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