本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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" `9 j6 l4 t" \If you are not a Physics person, read on and learn a fact of physics. $ `' T; V2 V8 l- n- Z. y
AMAZING! 9 ]+ s6 D( o( q4 j/ h, B% O
& l6 u2 D. w' w/ {# G: [公仔箱論壇Even after you see it, it is still hard to believe!
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& m9 c: u7 N, L5 K) x/ _Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
( H5 i5 l9 K" G公仔箱論壇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。 b0 _. Z X( M- b# h3 Z
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。 @, C1 r2 ]2 p
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The photo was taken on the day of inauguration.7 d4 Z+ ]7 P- G- k" K" R8 a. e
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb, Y0 ~6 d& Y+ Q( D5 _; U
7 Q p5 ~. z9 S: ~! ~Question:公仔箱論壇, e' h2 Y L# |+ F/ \# H2 A, S* A
4 g' F3 L: S3 g4 ]5.39.217.77:8898Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,2 ]" t: |* d' g; q( N c; s* w/ S+ k
Or just the weight of the water?
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, [. N5 u9 j9 g" E5.39.217.77:8898Answer:
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It only needs to be designed to withstand the weight of the water!
' n- @/ h/ _) lWhy? 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# w% c M' fThe Incredible Magdeburg Water Bridge in Germany
5 J$ I. @, {# E/ w2 ]tvb 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.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。! f3 Q4 h* J, P: O: }" @" y! Z
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.
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6 t2 z* {; L- [公仔箱論壇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.
+ C8 `6 e8 p: 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。公仔箱論壇' j) j6 i# S& w+ y: X$ ]7 j
2 U* f8 {/ P* _7 y, D1 z ~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* w# o1 i* z0 f7 D: Y6 D
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公仔箱論壇3 l% A2 K3 _: h3 z
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