本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
: Y+ S! h+ ?1 P) j5 O# JTVBNOW 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* V3 P+ g" d! J, w
If you are not a Physics person, read on and learn a fact of physics.
: N# g: d" m6 H+ k0 a1 ITVBNOW 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! 5.39.217.76' E& v# [9 ~$ O& S
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。. a. t, s* A! v6 X) ?" G
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! 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。" U: E# P* i/ t3 a- o3 U
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
( e9 P! ~9 }- d4 c8 Z' etvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin." P5 T# r8 f( n
1 ~6 G" V& y+ t3 N& w" [公仔箱論壇The photo was taken on the day of inauguration.
8 S7 C3 k! F C' ]: 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。To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.% {2 T* N' I6 x) D8 \- |; M" i
+ p# } c& I* E, z5 l ltvb now,tvbnow,bttvbQuestion:
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( _% E, M- _/ p. A- mtvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,' b5 C" a |3 T3 ~7 d5 S
Or just the weight of the water?
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Answer:tvb now,tvbnow,bttvb+ u% Y [% |( b( g! q: q
' m: I9 o9 _$ t! [公仔箱論壇It only needs to be designed to withstand the weight of the water! " k5 Z: A; K$ j6 t. I1 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
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* \+ b1 S T7 R* |5.39.217.76The Incredible Magdeburg Water Bridge in GermanyTVBNOW 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。3 A$ X z0 K X) d7 g* ^% X
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." m7 A+ E+ ]" _
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. 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。9 Q# _' \' J( ]! R( t, h
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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.
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