本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 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。4 v8 `/ S! c/ p: {, E/ A
5 L& k" \( X- x. utvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb$ T) b2 b" q4 E
AMAZING!
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Even after you see it, it is still hard to believe!
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! www2.tvboxnow.com8 u2 ]1 P0 v2 |6 ?9 \, I! W
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. www2.tvboxnow.com' S; U* u. p- z: j" G. o
It is located in the city of Magdeburg, near Berlin.
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8 y5 x* ], [, A+ ?, V" GThe photo was taken on the day of inauguration.www2.tvboxnow.com: f3 r( _$ b9 P u F8 L
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.6 R2 b' W+ W/ X8 R
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Question:www2.tvboxnow.com6 S7 o; m2 X" @- w1 W$ ^
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,& |0 A/ I9 D n4 g3 S" j1 T% Q
Or just the weight of the water? www2.tvboxnow.com% ?! B: I6 ~# j( e
; Z# m1 o& ~5 t, p! Lwww2.tvboxnow.comAnswer:
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. U8 L9 ]! Q2 z1 p i6 B% Z" Q9 E1 Ntvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb. g( m J) f8 i
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
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The Incredible Magdeburg Water Bridge in Germany; r4 o$ q) m& ]" L% d- |
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.
: m6 ]* h% P/ v9 R/ i8 D' F1 ^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。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,bttvb9 r( x6 S/ C k* L1 w4 R
5 P- d# D* A) m( ]' b) _, tTVBNOW 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. H4 V- n0 m0 X R$ m n
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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。4 W# N6 {3 J# v
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$ G; {% ^+ G( U9 s2 oTVBNOW 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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