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。3 r. P( m- g8 Y1 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。* |5 @( d" I0 v' @% F* i
If you are not a Physics person, read on and learn a fact of physics.
. A* a7 c( P0 ?2 tTVBNOW 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!
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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! % u7 p! D* l* D2 A) c5 ]( g& h
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. / x6 u% C/ W# j6 L7 ]# u3 w3 A$ p
It is located in the city of Magdeburg, near Berlin.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。, H" x( B5 L! v; c$ Z& x2 m& G
# L+ I) X+ D- n9 v2 n! N: W# }The photo was taken on the day of inauguration.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。0 h6 i+ A& r+ _( A, c9 W, F% K
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:tvb now,tvbnow,bttvb$ Z$ k0 ?/ `$ ~" |
公仔箱論壇+ z6 h, n' M2 ?: `# `3 z
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
# B ~$ w0 `; O+ v0 uOr just the weight of the water?
~. u% K4 z( 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。
) h3 x* n, d: {. m7 w" p公仔箱論壇Answer:公仔箱論壇8 _9 F; j& L& _" m
tvb now,tvbnow,bttvb/ L2 \% T/ `1 |! E M& g4 A9 F
It only needs to be designed to withstand the weight of the water!
% _1 `) P* F! l2 ]4 A1 ]tvb now,tvbnow,bttvbWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedTVBNOW 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。; Q( ?& k! S/ n f
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The Incredible Magdeburg Water Bridge in Germany
. i6 n) R7 a% h' UThe 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.
9 { o" V7 [4 |! v2 p! eThe 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.
' Q5 m- f. C3 l5 @1 g1 f- 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。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。; P3 [9 C6 e T; m8 M$ o
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. # i- ?$ A, L7 N! v/ g1 T
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tvb now,tvbnow,bttvb7 a. R& j: X1 [* Y( ^) x
4 _" f" l1 o$ i: N5.39.217.77:8898TVBNOW 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 F6 E, j) k' h8 I2 m0 q' y9 `
9 z7 |0 `$ [9 F" L0 ?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。
% z% W5 q4 d" v ]4 ztvb now,tvbnow,bttvbTVBNOW 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。, z. z/ m6 R+ ]* ?7 }
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