本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics. + T) h5 M( @4 B' G3 }# R2 a) |$ I
AMAZING!
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Even after you see it, it is still hard to believe!/ s; J4 f$ _4 b
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$ s* E4 ~$ g& G) x/ |' N公仔箱論壇Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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。$ {9 o8 q. l+ b$ d
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
7 ~* X% E' @' A6 O4 M4 T5.39.217.77:8898It 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。8 y9 u; N4 S& P9 ?; I) p6 A
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The photo was taken on the day of inauguration.
4 X0 P5 F5 h8 q( b$ A8 x/ b5.39.217.77:8898To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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9 B/ ^. V0 R/ y0 T+ `: B+ j5.39.217.77:8898Question:公仔箱論壇' {( d5 C& O- P/ G# l i e- V
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
( a7 q6 C# W3 f+ |+ Y6 [Or just the weight of the water?
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1 y8 i1 P1 w3 S2 ~" N* MAnswer:1 z: R) t' H L0 i
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It only needs to be designed to withstand the weight of the water!
' ]# Y0 K3 ?9 p$ i5 m8 x0 a5 \公仔箱論壇Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.77:8898, X4 D- T4 e$ F8 y2 J; J
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 C' ]/ T' F: J$ ?5 U+ p
& s4 r0 d6 ^- h8 q" DTVBNOW 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 Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb/ r x# X5 Y* W/ v j* \4 R6 |
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 P4 \2 m6 G1 ?3 U; Otvb now,tvbnow,bttvbThe 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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( q) D& M, U8 p公仔箱論壇公仔箱論壇1 n8 A' ?8 U }2 e
0 N$ P" k1 f% dtvb now,tvbnow,bttvb公仔箱論壇* B$ J% [7 S# Z x2 p% v7 Q6 ?
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。" R: Y) \% ?% D# n, U5 l
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