本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 tvb now,tvbnow,bttvb+ T' C) ?( k( S7 W, \9 k7 T+ [. K
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If you are not a Physics person, read on and learn a fact of physics.
6 G9 \6 Y H6 E! OAMAZING!
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* w6 d! z( T8 a& x. z5.39.217.76Even after you see it, it is still hard to believe!
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* V* f& ]- B5 ?' K) 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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
/ i( U, k3 E3 x0 s: U* nThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
: ?8 T- I- b# c: ^: P) O" @7 bIt is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.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。" S8 @& @6 [( C% {/ H3 Q
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇0 i8 H' U8 {; k+ x* J3 B' t( {6 w& Y$ y
/ e- x$ T" J8 U% g. o: t7 Q1 v5.39.217.76Question:
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4 ^5 M- q+ E: b: o$ t* {) t, X* H: CDid that bridge have to be designed to withstand the additional weight of ship and barge traffic, v4 |3 Z4 U) r9 ~ s4 ?
Or just the weight of the water?
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* b5 ]; J3 D7 k" n* B, j8 h1 uAnswer: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。( k0 o( d5 r5 z; a7 B/ w8 h" A
3 E$ U% o2 P8 dtvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water!
& T2 c( E" C( o4 }) t5.39.217.76Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded公仔箱論壇6 A$ o- ]- R; X1 `- M; c5 }3 j% B
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The Incredible Magdeburg Water Bridge in Germany9 ~# `7 `+ Y6 a `* U
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.tvb now,tvbnow,bttvb$ {% B6 D0 u, \; d
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. tvb now,tvbnow,bttvb* M- t, ^' C8 v! I, p7 C% L
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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. ! @' O! {7 P$ U/ z9 y1 h
- v# i/ z- ^' {! e/ i- eTVBNOW 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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