本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
5 l) Z: @0 i0 X$ z+ Y- z/ V0 ~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。
" D! Z. D+ ~& ^$ s1 n1 B- \% g Ttvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics. 5.39.217.760 G! }6 z# x( b2 n" M7 C7 G
AMAZING!
6 h7 P1 x" V: E, r5 j) Rtvb now,tvbnow,bttvb
# {+ B+ ^, y6 }5 Y# t4 jtvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!3 k+ u* K& o$ P& f1 R5 e7 }
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]$ L/ l) R% _* V# \Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
0 M0 R1 \! d2 M! U公仔箱論壇This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
# v9 N4 ^9 m: Y# L# W; j) n4 l2 u5.39.217.76It is located in the city of Magdeburg, near Berlin.6 J& I; `$ d( r. w4 G1 E; [
" G4 J. N! {4 D7 n7 @0 zThe photo was taken on the day of inauguration.tvb now,tvbnow,bttvb. _, `! e% V- v- y
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇- b$ p) @; P; n
Or just the weight of the water? 公仔箱論壇5 x6 K8 M% r9 v) h4 y( a
0 ]* S6 P* @! q. F* t/ E公仔箱論壇Answer:
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It only needs to be designed to withstand the weight of the water!
0 [( p& E! l- j7 S# I3 q; v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 loadedtvb now,tvbnow,bttvb( V! F9 G" [% r; ^( C
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$ ]3 ^2 {+ j8 dtvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany
# R; l$ Q1 p5 @$ |2 Z5.39.217.76The 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.
: d" g. x2 f9 K9 {0 I( B! s+ [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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# k3 S4 z# a- ?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.
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* N: F- ?) t! f0 e% H& I" w/ dTVBNOW 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。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。1 I7 }( p0 ] k4 G5 _
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