本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 2 `2 q# {6 ]- j& }9 Z
+ u( n/ k8 z @7 o1 u' ?5 r1 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。If you are not a Physics person, read on and learn a fact of physics. 5.39.217.76 Z- _! w- p# I. p4 j3 ?1 H# k, \' S2 s
AMAZING! 5 Y. S+ S, B" P% B5 a
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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! 公仔箱論壇 J A# J, U/ W" g: s4 O' S9 N( [# n
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
1 s: H. r) K$ N6 {5.39.217.76It is located in the city of Magdeburg, near Berlin.6 v4 z1 H2 r/ p0 s5 c8 I. M! q
, a& ?8 J. Y( q* j) i9 @$ ~+ r. oTVBNOW 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.5.39.217.76' J) h1 ?4 c+ ]
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:
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3 j. c, s0 F8 l0 Y" otvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
( N: A- O X9 [* P! p( t/ rTVBNOW 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? tvb now,tvbnow,bttvb% J8 h) @1 i: p; l
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。2 n' o! g4 \( j# D# W
Answer:
m6 u, }! w3 R: R& d, D5.39.217.76
2 X0 R( @5 R- M" `6 ]! 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。It only needs to be designed to withstand the weight of the water! 1 \( U* m* l @) `, M4 X: N
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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The Incredible Magdeburg Water Bridge in Germany
3 j/ _2 Q# s/ ^* m! O: o2 W2 E$ ZTVBNOW 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 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.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。$ `% n8 z( P" {; l! n4 G
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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, c1 h) P) a. J5 Q. @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. " m: F1 w9 X: L8 Z& j# z
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$ q2 r/ d @$ l+ r* j2 }' e, QTVBNOW 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 \4 K0 Q- g5 O- K
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發表於 2011-10-2 10:09 PM
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發表於 2011-10-4 11:33 AM
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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。6 k( W" x6 R5 `" D
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