本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 , e, ~+ P+ H4 r3 E" p. V
1 X: G1 f# _, a) D. V5.39.217.76If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇. o- \, ^4 |# x
AMAZING! tvb now,tvbnow,bttvb) j+ |2 s' j% i3 W! m9 L. J
8 s* k) d; @; Q* |; dtvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!; e4 }! {- x0 U2 I* e6 \5 J
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。7 Q$ x" z; J% N$ n/ r8 U3 A
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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。7 q3 `+ x: W9 H' ^7 w5 p% @
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
3 c$ F1 Z- Z) q& U. k6 W. H公仔箱論壇It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
& U. g( F+ G3 X, c- i @To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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% b$ I" ~& o3 a2 l- [. O% eTVBNOW 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:
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' }' K& Y/ q! `2 NDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,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 ]" K1 Y/ E; ?+ C! J
Or just the weight of the water?
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Answer:公仔箱論壇% u) X8 t4 J. ~3 `
6 R% Y X6 x ?- J( ^( ?( d& }公仔箱論壇It only needs to be designed to withstand the weight of the water!
7 n( W% o/ v( y+ J5 Utvb 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 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。% b8 T! I0 k' C# W
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。% Z6 m6 l; {/ A" j, l# S+ V
) {7 D' F v: wThe Incredible Magdeburg Water Bridge in Germany公仔箱論壇. u2 r: U+ s2 v" P) H' w" C6 Q* F4 ~1 U
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.
, L. j* l5 P/ [+ v* ^ H- {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. 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。( ~- l) F- `9 E8 G) p7 X
8 z+ Q) N$ f" T4 @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. 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。; t0 A* _; ?; E7 M4 r$ y5 ~
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。' S# Z+ d2 u7 P3 t# L# ^0 v
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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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5.39.217.76" N( e, X' V5 p
發表於 2011-10-15 09:35 PM
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