本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics.
, ?5 M/ v; f' s# }6 {: 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。AMAZING!
. ]& P/ c( Z& `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。公仔箱論壇# @. H2 ^0 q. e# O/ p
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! 公仔箱論壇/ T6 d4 ]0 W+ Z& l
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ' F; @1 Q3 I8 J4 M5 h
It is located in the city of Magdeburg, near Berlin.os.tvboxnow.com* g* w& b+ J ~2 m- G
) b" ]: W& A' k) zTVBNOW 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.os.tvboxnow.com3 r& N, m* K- N+ G- H! a
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:7 }8 X6 b# o5 o6 D S
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Did 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。" c- I3 c% Q7 P" m8 s. @. u
Or just the weight of the water? 5 L: F( }$ N7 u/ X- t
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1 I0 G$ l9 G7 Z/ G0 W0 Ptvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water! ; _" E" I! T: H7 }+ v& v
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
# o/ w/ u8 h6 ^: i1 p公仔箱論壇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。+ d& Y; W6 P9 i
& ]* Y j. y; ?4 A: l0 ios.tvboxnow.comThe Incredible Magdeburg Water Bridge in Germany
9 c$ I, o& n) J: s9 f, hTVBNOW 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 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.
$ V" _6 t7 `( aThe 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,bttvb; ?( p7 \( ~1 N6 g8 x; r$ T
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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. 公仔箱論壇( S5 ?, F: e' A4 j' w
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