本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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) h! w8 Y' |$ X9 o9 j9 UIf you are not a Physics person, read on and learn a fact of physics. 5.39.217.76! }" D; x; B' S, U: {
AMAZING!
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Even after you see it, it is still hard to believe!
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# g- s8 i: {. }% p5 ?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。tvb now,tvbnow,bttvb) x+ q. H/ ?- f- G
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
- k/ J0 r5 R4 t$ E; yTVBNOW 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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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 k' w. Y6 o; a9 _0 S. a1 x. V: W
It is located in the city of Magdeburg, near Berlin.
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% J+ t; d1 |& c( J! b( h公仔箱論壇The photo was taken on the day of inauguration.tvb now,tvbnow,bttvb* z) U5 Q! p8 b5 @$ B. a
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:
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2 b5 \" J8 p8 j% G( b. Y5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
& p% q& c. [: m公仔箱論壇Or just the weight of the water? : j# x% L6 g' k( o/ n9 a2 R, `% w
+ [. X; L( L( a; @公仔箱論壇Answer:
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. {+ w" F1 ^7 a8 n3 _It only needs to be designed to withstand the weight of the water! 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。* k* W1 w) p6 G# a3 f: Q9 B) D/ Q
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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The Incredible Magdeburg Water Bridge in Germany
1 D2 W: [) Y) }$ p5.39.217.76The 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.5.39.217.76. A1 u) ~/ w7 ^( j
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。( N, L" B. V T3 Z% q& {! j9 U' Z
( {- X% v+ d( e* o& u% U3 k" U- M5.39.217.76Construction 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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8 |, A' a' E5 f/ [. b, M6 B5.39.217.76TVBNOW 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。* a7 h, q5 Y, `) r- i5 t# F8 ~
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