本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 5.39.217.763 \ ?0 F O: n8 y% X2 n( ]& N
5 w0 r6 F; v( s3 s( xIf you are not a Physics person, read on and learn a fact of physics.
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Even after you see it, it is still hard to believe!
2 e- p' Z% z3 [# [" }; xTVBNOW 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。5.39.217.769 H3 x4 m# K) M% ~; Z/ s: j; ~+ u) F
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。3 E; f$ O+ M- v& ]9 K, T
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
' `! Q/ A& n1 x6 {) xThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. # ~0 m' n7 u$ {+ ~
It is located in the city of Magdeburg, near Berlin.8 H% |# j- ^8 `8 J, `
6 f" K0 o9 O" t- Y% ITVBNOW 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。/ M4 p' x* F! u7 J
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
$ N" I8 f% j) R. 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。
9 p$ C1 O& u: p! b2 i! c( yTVBNOW 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。Question:" k4 s6 t! _2 N5 r6 l, T: c
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
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Answer: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 {; z2 }! m( X! {8 y3 n4 p% v3 G
0 v3 D- p1 x% V4 z$ C公仔箱論壇It only needs to be designed to withstand the weight of the water!
6 A% k) q7 s) \) M+ ]/ ztvb now,tvbnow,bttvbWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded公仔箱論壇8 O& a8 e0 H3 [
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5 I* o! M- J. F' x6 T/ ~The Incredible Magdeburg Water Bridge in Germany公仔箱論壇, U$ i; Q. `9 q6 `) s
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.
0 K0 }; l. g7 V: ~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. 5.39.217.76) a, r% T- T x3 v7 v
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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. % i( ]+ Z j- [- h8 P3 l, e
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/ q3 t/ Y' y( Z1 C) S* 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。9 p$ b& {3 d8 E8 B% x
tvb now,tvbnow,bttvb& g- P7 n. w+ Y: a4 P: a
tvb now,tvbnow,bttvb8 Y" V s# W' ` H0 n
7 T5 R ~7 {" Z; Q+ B8 P公仔箱論壇. y( Z( ^* B6 U. j
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