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。' n' x1 E, \; G9 f
1 I- V3 Q# y, p6 \公仔箱論壇If you are not a Physics person, read on and learn a fact of physics. 5.39.217.76- R8 S7 N0 @, }& |* p/ n
AMAZING!
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, ~' h; |' S) D; d8 U, R% jTVBNOW 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!
; z l2 X- Q0 G! c1 ]# h0 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 ^, i; Q
; h C7 E. U V0 |( I* EMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.760 D0 v1 J* U; Y; A. s
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. tvb now,tvbnow,bttvb. k0 | c L6 q; v. h" o
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
* _; j8 t/ z" _To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:) B+ [. z$ P3 Y* r
5 E. l& L2 P8 d" S& Q5 M; [Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,( T3 p# H+ w7 h+ w# Y& C6 N
Or just the weight of the water?
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Answer:tvb now,tvbnow,bttvb! P7 F l. f( s! X! ]
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It only needs to be designed to withstand the weight of the water! ; f8 M: o8 q7 V4 H- y" 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
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. {- L" f8 ~4 z b+ m. d" v' Itvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany5 h* l# l. V: c3 X& X
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.- z$ N/ s$ j4 C6 V" B1 n
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. / V+ [. c: a* A" c' P; C+ e
' J3 M/ b, x$ L0 H$ b, l8 B公仔箱論壇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. 公仔箱論壇, s4 e4 {& ]. h! L% R+ i
4 M0 g; w5 a7 D0 Z2 w/ |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。) A0 V G# Q3 U0 C
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) J7 l% {9 {1 r3 r! 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。
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