本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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% ]- }* F0 I z7 |5 e4 lTVBNOW 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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Even after you see it, it is still hard to believe!3 [# n% y6 b+ E
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1 {+ N8 l2 L) R. ]" B/ R2 x5 t0 ^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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 9 l4 ^8 F. ]5 |5 K1 B1 \
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ) q2 _! b2 L/ }& a5 Y
It is located in the city of Magdeburg, near Berlin.
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! e: }% y& I" w5 mThe photo was taken on the day of inauguration.
& m/ c! T9 N! Y; \% z( Ztvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb' K( S# {$ R) i/ C1 c: l" G
+ ~0 ]# W3 `; MQuestion:+ E% s) W, L, F) i r* n
' c. P* L* h) }tvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.76* ^7 j1 j7 ~! g+ D$ e
Or just the weight of the water? 5.39.217.76 f' d1 S' I1 {. B/ o+ m, d% c
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Answer:公仔箱論壇3 ^) x' u/ t. F3 U6 I' B f
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。$ W! \% Y# A* m/ z
It only needs to be designed to withstand the weight of the water!
6 N9 x" O% c5 ^/ d5.39.217.76Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedtvb now,tvbnow,bttvb9 o2 o9 Y! D) ~& N% h8 p2 [
5.39.217.76/ l* f b5 Y. M2 p- ?
0 X% K" q( K+ r' @5 r" sTVBNOW 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 Incredible Magdeburg Water Bridge in Germany
`5 s( |6 |* t+ I- k+ o, P+ _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.& Z0 l! v* y8 i
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。( V( {! i& j5 J8 [0 p: y( d
3 u. l) _& f3 k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.
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% @+ S1 c' X! l& J' aTVBNOW 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2 E- a4 d; ^5 z$ J6 e
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2 z+ [# M' l( P7 d) a公仔箱論壇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。8 h8 A! b' s$ B* Q& m
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