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. % O6 S* ?, ^' c% }: ~
AMAZING! / c. W" E8 A; l% E, O ~# }, ^
7 ^& [; s0 x: K& W0 s公仔箱論壇Even after you see it, it is still hard to believe!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。+ E1 y" J6 S- d" ]: F3 y
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb5 i" b# X7 E" P3 n) p) b$ c1 j( h
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5.39.217.77:88988 |$ Y* ~% u: q8 i! @3 e9 l0 G
It is located in the city of Magdeburg, near Berlin.' a& {: ~9 [' p/ \
4 K$ i2 E) C: M1 C( L y7 }$ Q8 cThe photo was taken on the day of inauguration.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。5 [6 F4 r$ P X5 d/ L: h4 r
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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/ c' U3 M: M8 s" W3 @& H: iTVBNOW 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,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。# q2 U# Z4 C$ V5 B
Or just the weight of the water? 1 A4 G: p$ Q' a* ? M5 T
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6 e! h' ^" S: {! D8 k公仔箱論壇It only needs to be designed to withstand the weight of the water!
! q1 n3 T& O8 f# p$ gtvb now,tvbnow,bttvbWhy? 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
y! x+ {2 K; s n. @, f- DThe 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9 y" h/ d M- X# y" j- T
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. 公仔箱論壇' t' q+ n& l$ P9 r
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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. 公仔箱論壇) Y5 g& ^3 A% \# G8 t
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9 m3 `- B- w! S* |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。$ u- C1 R* a. r- ~0 y3 d. e+ f
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