本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 tvb now,tvbnow,bttvb1 P+ J8 `( L6 f& j0 i7 F
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If you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb( x6 c1 t) q' X9 D' F. D8 _! c( e+ c
AMAZING! 公仔箱論壇7 W! l( A! C% Z) V7 c9 i$ R$ Z
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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!
$ X) l. A& c6 y6 F公仔箱論壇This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
4 }! I( ]2 j! ]9 f3 VIt is located in the city of Magdeburg, near Berlin.
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9 M$ x$ B/ a2 @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 photo was taken on the day of inauguration.
# T( R* Z1 S' r R2 ~To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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7 k6 j4 Z/ r* f" U. Q5.39.217.77Question:
2 |* D0 _; t3 mTVBNOW 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。
# S6 C8 r1 Z5 [& S* `5 D) dTVBNOW 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,tvb now,tvbnow,bttvb5 ~% g2 l2 ^9 `3 c
Or just the weight of the water?
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0 k5 r$ L8 \- f* S+ b) Y6 otvb now,tvbnow,bttvbAnswer:
# s3 s! r1 e9 e8 x; s- i/ z: NTVBNOW 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。5.39.217.773 T# X _8 K4 `' O
It only needs to be designed to withstand the weight of the water!
: L2 r( Q% e O/ m0 e7 yWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedtvb now,tvbnow,bttvb; G w+ _0 G. C3 h3 D0 `
公仔箱論壇+ E; h/ ]# M" ?& S7 J( T+ b
2 t9 q* d0 l6 K4 sTVBNOW 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 Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb- b* L9 t9 V8 r4 j
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.
' Y# _# D+ m& p- F& d' sThe 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.
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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. 2 W( D4 Y& I. w( q0 W5 I7 F7 U
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! ~( n" v: X5 uTVBNOW 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。5.39.217.774 s: c: R6 f9 }8 h
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