EVER SEEN A RIVER OVER A RIVER?
本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics. 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。& [' v( G1 d4 U% `: Y
AMAZING! 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。. u9 D J( i6 A( U: ?% @ A% w
6 e+ t8 Z+ C; z3 k q: X5.39.217.76Even after you see it, it is still hard to believe!5.39.217.76! O* m- S0 ]4 n/ G
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# P: v+ h) {1 A4 F公仔箱論壇Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
( Z7 z8 U: L' P- \1 B% uThis 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。1 m4 M/ g# T" v
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
. T. d5 j c% x) T) mtvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:tvb now,tvbnow,bttvb8 {( N% G+ U" \
: y! P& X: X3 D8 X0 s7 b% z; hTVBNOW 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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
+ u# k4 D' K- H, TOr just the weight of the water? % b& q" e& M/ r) {8 D+ P
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It only needs to be designed to withstand the weight of the water!
# @0 }- U+ p# r- O公仔箱論壇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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! B$ z7 B2 K1 CThe Incredible Magdeburg Water Bridge in Germany
/ ^: D1 e/ b5 V' b4 n7 A- W Utvb now,tvbnow,bttvbThe 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.公仔箱論壇 O9 \1 e& h0 H% k0 c1 h8 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. tvb now,tvbnow,bttvb% V4 Q% V. G0 k2 `- ?" i
8 T& U. c- m; y' f0 I gConstruction 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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