標題: EVER SEEN A RIVER OVER A RIVER? [打印本頁] 作者: lilitan008 時間: 2011-10-2 10:09 PM 標題: EVER SEEN A RIVER OVER A RIVER?
本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 + A' g0 {6 o2 U- \' e: f9 G% Btvb now,tvbnow,bttvb5.39.217.77:8898. P* D9 V+ g( c8 @ B6 ?( @
If you are not a Physics person, read on and learn a fact of physics. 5.39.217.77:88981 }: d8 L7 `" c+ X, G( z8 Z
AMAZING! 公仔箱論壇0 n" c$ w8 J+ o9 D4 [' L5 D 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。6 _9 r( ]0 D' B/ N
Even after you see it, it is still hard to believe! , I4 C& M4 k7 l; n j3 W[attach]1486499[/attach] 3 Q9 B$ l% v' @" T9 E: p0 t; o ! i# p: o1 A. Y& \: B5.39.217.77:8898Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! $ i" v: r- Q0 V9 a) ]
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. , `7 m7 Y4 v% H
It is located in the city of Magdeburg, near Berlin. " B3 h0 b) `& J7 E. Atvb now,tvbnow,bttvb 9 z* J# v5 a/ c" L6 z9 L$ L+ Dtvb now,tvbnow,bttvbThe photo was taken on the day of inauguration." J! L& w) V" Y; `* |7 o. P
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. 6 L3 E {; {- c8 m9 A公仔箱論壇# j1 M- Z4 T; S/ S
Question: 4 L, T' f; O7 ^* n5 T# T* E; C% \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。2 c- b+ ~7 T" M! A0 x7 a, d: q
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,) h+ }- @+ d/ M. w6 T8 e( i" I
Or just the weight of the water? tvb now,tvbnow,bttvb8 ?% d/ [7 q/ ?+ g$ S8 B, a; r% y
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Answer: 8 ]+ e9 }$ x" H# v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。8 @2 Q/ u( M) O& h, T7 r
It only needs to be designed to withstand the weight of the water! 5.39.217.77:88983 J4 k# x+ b$ T/ [% H" p
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 & G- I9 @, m+ _9 m公仔箱論壇. B" I! | F+ \" }% A
( Q1 K; @4 M/ w' ^The Incredible Magdeburg Water Bridge in Germany& o2 q. d G; R
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. # a( ~+ h0 @& }1 k7 |: `( d5.39.217.77:8898The 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,bttvb1 x+ \8 j! e: A
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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% {( b& f* _ H6 o
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