本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics. 6 l# C. S h7 z) ]& W; `4 C' Q
AMAZING!
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Even after you see it, it is still hard to believe!
3 L, W% ?! _' H; UTVBNOW 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。tvb now,tvbnow,bttvb8 n; t7 c% N* D8 \; V ~1 A5 n
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
: v( D6 y! L+ y. d4 |/ wThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5.39.217.76. z/ L- a, Z% o7 K( Z5 N" ~- v
It is located in the city of Magdeburg, near Berlin.公仔箱論壇4 w, F! H. C) V+ `$ j. c
8 X8 c `( J- d! n: U+ d- a7 rtvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.
- Y& l7 Y* J2 b6 r. L1 g# aTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
$ p5 M8 d8 a( n2 j& g公仔箱論壇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。2 I2 D# q+ n( e$ I, g! b3 l, W7 t
Question: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。+ ^& p. j( V% v6 l; s
+ o: Q* C+ l$ d% oDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
H: Y; ?; M, Z$ p! L2 }: [7 cOr just 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。% J6 t5 r3 E1 f$ o7 A
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Answer:
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1 A R! ?2 @5 c6 o7 Ftvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water!
( |; Y) d( J& H6 L3 w公仔箱論壇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。6 k( J% L% N# h% [! I
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: a) ?2 m8 i4 E3 u* K/ c公仔箱論壇The Incredible Magdeburg Water Bridge in Germany
3 Q9 D& K7 Q3 H公仔箱論壇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 g0 L/ O& q# _/ x7 z) |5 z# k公仔箱論壇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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1 r) |1 p% P9 f( jtvb now,tvbnow,bttvbConstruction 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.
$ o6 f% `- z& q% g4 b' `9 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。 K% ]8 H M: Z
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