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。 G& h4 y$ F. J2 B3 V6 d
6 s& n$ K1 z' p- q: |* |! MIf you are not a Physics person, read on and learn a fact of physics. 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。1 X6 m- e# r; p$ Z; l6 n
AMAZING!
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; G7 _+ ^% O$ J5.39.217.77:8898Even after you see it, it is still hard to believe!5.39.217.77:8898, F& x4 K; l; o( g3 ?$ v& r
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
, c" C. ^; z) ^0 E( @+ N5.39.217.77:8898This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
/ V$ G0 _1 h! H8 g' ?8 r8 Qtvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.公仔箱論壇' n# Y1 C# _2 L- S7 }" p- r
. n9 V; X: \/ H1 }, E公仔箱論壇The photo was taken on the day of inauguration.tvb now,tvbnow,bttvb7 b3 P( r3 \! h* ~) X& [
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇- a; O1 @9 R2 \+ x0 K) i
! o- J: s0 S0 SQuestion: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 z' P( T) ], X7 \! S
3 Z: X( x- u. e' T. v) WDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.77:88980 c* z2 f8 _1 [& S4 U& L
Or just the weight of the water? tvb now,tvbnow,bttvb& V1 j+ f. g% k, `" P# ^# m
8 S6 x( \" T3 ]6 FTVBNOW 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。Answer:
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6 `; M. o. N, jIt only needs to be designed to withstand the weight of the water! 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。 t2 ?- K7 N' x4 ]4 u0 q& 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
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' Z& r$ z" _# {+ VTVBNOW 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。7 b( c0 g4 E# n r
The Incredible Magdeburg Water Bridge in Germany
0 \+ t( e6 H3 {, d5 M+ C: Z4 B5.39.217.77:8898The 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.5.39.217.77:8898$ H2 L0 i0 e/ v
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.
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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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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 U8 V+ `& j0 L6 ?* v6 n& y- q
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, e: d( M& B }+ T5 bTVBNOW 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。/ P E4 ^5 S# G( F
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