本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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! R" M. W5 H4 |4 a4 P5.39.217.76If you are not a Physics person, read on and learn a fact of physics. 5.39.217.761 v. V3 H8 [1 F J# T
AMAZING!
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9 c3 M, J6 |6 ]) Y* u" F- c, P5 zEven after you see it, it is still hard to believe!
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- d2 g! o3 T5 F5 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。* C& y8 X: S1 {' g( J: B
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 2 S! h! x3 S3 y3 H3 Y
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. $ {$ `4 [& ]* J: [3 N
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
X: N% P) ^& p Y+ s3 _7 @* ]1 q3 ^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。To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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6 k/ \7 A1 m( A7 aQuestion:
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$ A' {$ j6 }+ {1 r5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,; D' x7 h2 U: [ p( Y2 r
Or just the weight of the water? $ Z5 Z. o4 i8 n- z
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。+ v& w1 b$ ~" H7 v, f; n
Answer:
4 g4 k( d, v! m) e9 d+ J公仔箱論壇tvb now,tvbnow,bttvb6 i% b) R7 @. x H- e0 |; X' b
It only needs to be designed to withstand the weight of the water! 公仔箱論壇7 S( f, O5 f% v7 K7 @( ^# E, x
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.764 |; R; Q' _' n, B( t, i
7 y7 W; R; F# i: I公仔箱論壇; w# I! [( H2 P% q8 D9 R- d
The Incredible Magdeburg Water Bridge in Germany
, q j, @" ^$ 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 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.
" F: b0 S1 t9 m* rThe 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. - s5 s' G# \/ n3 M3 O% x: Y2 s: f3 R; f
; f' p& }2 w4 z2 KTVBNOW 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。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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tvb now,tvbnow,bttvb+ H: t* c9 Q# ^8 n+ c6 z% a) _) 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。) _2 _! l, V z
8 [" p3 `7 i$ N1 y( X' ~6 zTVBNOW 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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. @, E) X s' A0 ^6 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。
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發表於 2011-10-2 10:09 PM
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發表於 2011-10-4 11:33 AM
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發表於 2011-10-15 09:35 PM
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