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。# m. @ s! l9 \4 _. ], A: q! p
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If you are not a Physics person, read on and learn a fact of physics. , X4 M! [% t( z* g$ n: H- }
AMAZING! 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。: J& k$ t1 |" Z/ {' q( T
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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! 5.39.217.77:8898/ q- S% ^" O" L. h+ n. m6 A) U
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
2 g9 o2 e: X( gIt 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. c$ f" T1 }8 s
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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。# L% v% V M2 z1 e [2 w9 Z, f
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇: y7 o( r( v" ?+ d
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Question:
' W; \1 n7 S5 O) Z. o* M2 g1 lTVBNOW 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。 B4 a) ]- C+ z# p6 U) y6 g
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
/ A) B3 D4 C/ e: 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。Or just the weight of the water? : h2 j) r/ C4 g: i3 ?( H0 {
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Answer:
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It only needs to be designed to withstand the weight of the water! 公仔箱論壇5 Q3 y2 h1 A3 A: N, O# Q& D
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
3 S, T Q: r$ _+ @. Xtvb 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。: P; h1 X. i. f1 N
( k" Y+ ^( E+ G& t. X2 O: B" K/ BThe Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb0 j) W2 t' \( t' C" z9 a
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.
1 g/ E$ |3 v/ v; N0 m/ `( CTVBNOW 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 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. 9 j: v7 T. r; Y$ ~
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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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3 K8 Y& u4 S7 r: m4 `6 l& 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。
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9 n, a, G: x! q: ^6 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。, [$ b+ Y) O' [$ J- j
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