本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
% j/ K3 K* d% h1 S4 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。
' u! n! C. N" r+ ?& t( c3 h% _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。If you are not a Physics person, read on and learn a fact of physics. 5.39.217.769 k& O* }. u; z9 {) W2 J; A
AMAZING! - A( Q0 X6 ^/ r( \* Q; C& ?3 R
' D" w3 Q7 d2 a, I4 N2 E \" 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。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!
4 q* ?5 V. h1 j3 T! g2 {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. tvb now,tvbnow,bttvb' v, {% x4 E; @ ]3 o* {5 }. p
It is located in the city of Magdeburg, near Berlin.
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* q5 {7 w7 W" H! x# YThe photo was taken on the day of inauguration.9 x p& u/ |% n3 H# ^2 ^; H
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.6 Y2 g6 O* h9 A* S1 }/ }
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Question:
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( ?! W T4 K) R0 `6 {Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
; k: E; r4 U1 @5.39.217.76Or just the weight of the water?
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# K K$ C4 Y9 @- kAnswer:tvb now,tvbnow,bttvb# x% M/ D) G: d- U
9 }8 M0 x; l* Y8 z7 ]7 b5.39.217.76It 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。* b& ^" u' u; }7 G" V6 R8 ]8 [% a# R
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公仔箱論壇+ M' b9 ^% v/ H! D; W8 R
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The 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。$ h- g4 m) B; d: v4 K
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./ _8 {* W- L. m
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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h! t( m" R/ E8 _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。
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發表於 2011-10-2 10:09 PM
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