本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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$ k- z9 @. |" Stvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics.
. ` O# n2 @1 ^( C! BTVBNOW 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。AMAZING!
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, p0 c: k7 \" v+ i# x公仔箱論壇Even after you see it, it is still hard to believe!" g) ~' s* z% A8 W R9 H
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
) u9 {3 x, r- s# a4 C. x; aThis 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。6 B3 }- ^% D" O( r; i8 ?
It is located in the city of Magdeburg, near Berlin.
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9 U1 C2 m1 Z# CThe photo was taken on the day of inauguration.公仔箱論壇8 l" V/ N! V3 e8 o
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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5 ~+ H9 S3 W0 R8 M( ntvb now,tvbnow,bttvbQuestion:tvb now,tvbnow,bttvb( k. m5 {; D" ^) H2 u$ A
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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+ G9 E: u2 T) ?; X$ f, u( D( P) M
Or just the weight of the water?
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5 j5 f4 X$ v6 x- {公仔箱論壇Answer:5.39.217.77:8898: V& I) ?% F' z* M' p7 e
5 A0 W/ |& m) d5.39.217.77:8898It only needs to be designed to withstand the weight of the water! 2 ?3 j, \. u' B1 b9 R
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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2 T. U" n. |5 Y# z5 n+ 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。
5 w+ j3 Z5 B1 l$ p公仔箱論壇The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb4 o, T4 l" g& M: b* }
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.
1 M; j/ M0 a: z3 R0 q% H8 oThe 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. 8 t6 M- U, B2 j% Z) X
. j) F% R5 Q, U% h/ I x+ Otvb 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.
' [- O5 R7 g$ y8 F8 f; n+ MTVBNOW 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,bttvb# t# k7 {8 u! L5 d) i
: Y. p! o6 }# n# D; OTVBNOW 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。5.39.217.77:8898; E U4 d9 h3 A0 r t" ]! n; K5 i
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& R, F# |' m# Y- Stvb now,tvbnow,bttvbTVBNOW 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。% t& T! f1 b( U, b
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