本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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( B' A6 g$ N. T! c& N/ k% `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。If you are not a Physics person, read on and learn a fact of physics.
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! s8 y H( v0 S2 `3 \$ A5.39.217.77:8898Even after you see it, it is still hard to believe!
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' x7 R% _+ Q4 `: w- qtvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! $ Y9 J4 X# [2 o2 A' W
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇# A1 y. b7 F& s, K
It 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。3 c7 Z; }9 w/ b! W+ ]
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The photo was taken on the day of inauguration.
3 E$ {% c/ h' W7 c* }& \6 q公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb) C* B" C% t! Y' J
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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。/ ^$ Q- N6 B0 O4 c( g. K( E
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
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It only needs to be designed to withstand the weight of the water! $ A i8 p8 ?& i% N0 Y* r2 t
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: U( p) \3 S: [/ n( \; V7 O
$ P0 U0 g, B# r3 l$ E7 i8 n, ?. L" bTVBNOW 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。5.39.217.77:88980 I5 l& R2 H3 X- o( G: x9 g: I
The Incredible Magdeburg Water Bridge in Germany: r1 b( Q" P0 G+ l A0 g: {
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.
- e5 W. g% f1 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。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. 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。' ~, L' ]+ j$ L+ N3 l/ I
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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. 5.39.217.77:88989 q0 C, q1 A( E9 S* u E A
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