本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
5 G9 X1 c" W) J$ e* ^: C3 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。! \" h! K# c$ D- {# f4 K
If you are not a Physics person, read on and learn a fact of physics. 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 h. `% e9 Z' [* l, }
AMAZING!
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) D7 j8 ]" H. n% `0 LEven after you see it, it is still hard to believe!
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/ _8 D7 _2 ?1 I% p- b7 n公仔箱論壇Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! & ~* S! V8 E, f, D+ q- N! U$ Y
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5.39.217.77! V, j6 q& g1 K0 O' S4 T& g8 R8 v
It is located in the city of Magdeburg, near Berlin.
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, I9 b( d* C3 l6 ^, 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。The photo was taken on the day of inauguration.
# `0 N& V8 ~* @+ d' F5.39.217.77To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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O. q; \+ ?5 W7 U) p3 Wtvb now,tvbnow,bttvbQuestion:
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6 X/ s3 x) k* g Z3 M9 wDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb5 u/ |3 O& ], |
Or just the weight of the water? 5.39.217.776 e# e) ]- ]/ Q0 W
: \. U) d8 y2 C+ ?! ?( qAnswer:
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It only needs to be designed to withstand the weight of the water!
5 ~* D* N. e" @! q& QTVBNOW 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。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
3 U2 }0 ?/ h8 n: btvb 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。$ E/ p+ C: P8 M% v9 j1 M
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The Incredible Magdeburg Water Bridge in Germany
# T+ q# ~3 b* b& D" R& Z, p* F5.39.217.77The 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.8 I+ c% f+ y! u2 U( S/ 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.
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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. tvb now,tvbnow,bttvb( `1 e) ?7 X: ^2 u. P5 B; y' r& F; l! z
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" Q+ m0 K0 Z+ S8 l& o7 J公仔箱論壇tvb now,tvbnow,bttvb+ \; e" R. n+ `2 c/ B( a/ u" m
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