本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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' R5 F9 k) t& u6 v; U" Q公仔箱論壇If you are not a Physics person, read on and learn a fact of physics. 5.39.217.76( J( G, d/ k) H0 w
AMAZING! 5.39.217.766 g9 L1 G+ C& ~+ Y/ Y
6 L2 E: J; ?& o4 H$ B# O- _( o4 Wtvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!+ X$ W; @; c' a
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$ f+ ?7 W/ k4 s8 pTVBNOW 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。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。+ i* e8 s! L4 K2 b- Q/ D
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
+ E1 q, A( l7 z) l5.39.217.76It is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb: r5 k0 E; c- Z ?
) r; _: D7 }2 V: Atvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.
p0 ], m0 s6 n: @, K( S4 K公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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7 M. N" @: h# A: l$ a- p( q5.39.217.76Question:5.39.217.765 g7 [' I2 {/ | x9 P, W( E" B
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
% k8 t+ n! ?) W公仔箱論壇Or just the weight of the water? tvb now,tvbnow,bttvb) V+ U4 F# [1 x ^
$ ~; i- }! Q& E8 X5.39.217.76Answer: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" n# N; s2 \
! |4 g8 a- r( \6 {; ^It only needs to be designed to withstand the weight of the water!
3 p+ P: U& @6 J% v4 C% I( ~Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.76# R" B' H6 m- {& h m! S) _
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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。8 k) B0 V& I, Q+ v1 a
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。$ X1 y% q7 z2 `8 S- G" W. \8 n
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 X0 p2 @) t) z- a1 P* ?$ YThe 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. ) s) X7 K1 y0 U! W
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5.39.217.76: o8 P+ t& Z# j2 p0 r+ h* u! D7 Y
$ s5 ?9 \, r7 ~6 X$ F6 I: @5.39.217.76公仔箱論壇6 \8 d# ? k% e9 V k$ Y% Q6 s
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' [* k6 z+ `, I! o/ W
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