本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 tvb now,tvbnow,bttvb0 h8 U3 H' @* d
公仔箱論壇! g* m" f; p0 [: |7 u" z$ l
If you are not a Physics person, read on and learn a fact of physics.
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3 u' i( W2 x: U% g( 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。tvb now,tvbnow,bttvb! Z8 } e0 v3 @: _: _4 p7 q+ y8 B
Even after you see it, it is still hard to believe!5.39.217.761 H- S3 y! Q% h4 m- s
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! \& n8 y4 X+ a- y: lMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb- l9 G7 C/ F6 y4 h. |3 D7 e5 a# K2 S
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇) |+ m& k# h* g! f+ ]& Y) V
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
6 g% N- m( R+ V8 ~3 _6 iTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists./ o9 L; G7 R( G, m5 Y3 R
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Question:公仔箱論壇) ]- b5 G- K' S& }" v
' i4 c/ i. G) Z7 ?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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
9 h5 |; J, E8 g5 ]4 h" X* Ctvb now,tvbnow,bttvbOr just the weight of the water? , b0 N2 N2 z4 D, L- J( b
6 r( a6 Q& a( L- M" j, H5.39.217.76Answer: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 }. u" L& i5 c
4 p( _/ i+ X/ e7 I1 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。It only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb$ N! i! I$ L& y! a# N
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded9 [; Q4 _6 X- z8 F: i
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5 ~: z4 F8 Y/ Utvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb5 D z! h/ X# O0 K9 [
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.5.39.217.76+ }% D- w( J9 l$ j
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. tvb now,tvbnow,bttvb6 C( P/ l4 B! U, J5 s& N% \
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。; }, F* L2 S, _( ?4 d
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. 5.39.217.76, e4 W+ U/ B0 j6 c# {5 E$ o" {+ o
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, y& R; X2 g; R5 ~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。5.39.217.76! p9 {4 I' Z& d6 o9 ~+ f
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