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。4 C2 C! Y9 X1 R# L
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。: H- m9 ?7 K r5 `+ {
If you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb7 _+ N% ^/ |' J' Q2 s% \7 K
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Even after you see it, it is still hard to believe!tvb now,tvbnow,bttvb, E4 H& P- `1 I! ?" s
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
8 x2 g+ o- f0 h6 T3 _- |$ tThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
7 T, T4 q' R: s5 i3 s, q+ {It is located in the city of Magdeburg, near Berlin.
9 Q7 \. P3 N/ B( H. a2 N0 ^1 c7 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。
& E, h/ E* j1 |. 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。The photo was taken on the day of inauguration.
- ^/ _2 ?( g9 tTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
. ^( m- E: k/ ^- B& h( AOr just the weight of the water? 公仔箱論壇7 ~, o/ V$ A% E% O* \/ C3 E1 y6 }
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Answer:tvb now,tvbnow,bttvb: A6 L$ Z2 w" J( n) E
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It only needs to be designed to withstand the weight of the water!
% s' d( W/ @$ cWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded) T: o% z8 w7 ]
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The Incredible Magdeburg Water Bridge in Germany- |) L* g8 R' g) [8 K) W
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/ P( b7 W# W0 ^, l
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。; E D* k6 A4 M3 G' |- J ?. j
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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.
9 W6 W# i$ Y; `( _" F3 T" D# x' 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。* G8 ]1 J* B% s9 D
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) @9 J4 C+ v2 f: H8 q! E' B0 [5.39.217.76tvb now,tvbnow,bttvb$ D( U$ y$ ?) A. z/ w3 u
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