本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
& J$ g/ R) @1 T- K' Z5.39.217.76TVBNOW 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 a$ U& |; I* I" `( G. M
If you are not a Physics person, read on and learn a fact of physics. 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* W+ t! Y: b9 q9 K) c3 R* `
AMAZING!
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) H4 r9 l3 u% R8 u; f; w& 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。Even after you see it, it is still hard to believe!1 k8 t1 q' `( `8 M0 s
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/ q' d2 Y1 h$ X$ 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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
: K, S) M$ O( {7 x8 W2 X9 ^5.39.217.76This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 9 \5 h" {- ~! a/ }3 x
It is located in the city of Magdeburg, near Berlin.
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- c/ _- |9 f; C. e+ s4 t5.39.217.76The photo was taken on the day of inauguration.公仔箱論壇8 A( i1 f" }# [9 t U: N, q
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
; R; f: U% [* h' 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。% k" M7 H8 Q) W9 L
Question:tvb now,tvbnow,bttvb9 J6 J# G' F- @* N
% L! Z) P2 D! O' i: j$ t& N! \Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇3 {) t, Z" r, p$ M9 q$ f- o
Or just the weight of the water? . `" [( ]; H9 U
2 z9 z8 g: L, x5.39.217.76Answer:
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It only needs to be designed to withstand the weight of the water! 2 a, t! c' I5 q; ~. |0 m
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
! z' g# b; @" s+ I) r4 `: 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。
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& i4 P5 n# M, d6 m8 c f5.39.217.76The Incredible Magdeburg Water Bridge in Germany公仔箱論壇5 G! H$ t+ `6 b
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 g4 Z8 M! {& I5 q! ]! S0 x( B" h8 nTVBNOW 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.
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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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