本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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- p& m. X. d( U' @ E8 l. i5.39.217.76If you are not a Physics person, read on and learn a fact of physics.
5 a f% c' D+ C3 MAMAZING! 公仔箱論壇; Z) n0 i1 k; |+ P
3 Z; P! _: X3 X4 }, \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。Even after you see it, it is still hard to believe!/ G, \& j; ^1 [1 U
0 R t( s1 e* j9 F" T9 ^' fTVBNOW 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。
3 N$ S9 {$ N) CMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇# G& }# Q+ x" b
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
3 K5 D! o4 M! y. M, N \8 Ttvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration., H+ H4 S0 Q1 m$ Z0 W6 F$ R$ c
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.; o% Y( i2 w& G: k
$ R* o0 |! y4 \1 u) f' uQuestion:
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! b/ ~8 b' l; _4 etvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,7 w: j% ?* `8 f4 U
Or just the weight of the water?
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) S2 B g/ `8 F公仔箱論壇Answer:5.39.217.767 P. y# D% z) W
* ~( T- F0 e) C# n/ v' LIt only needs to be designed to withstand the weight of the water! 公仔箱論壇/ h6 w/ f0 s3 U* Q' C& \9 H+ ~
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. _6 [, f/ o7 z$ g
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The Incredible Magdeburg Water Bridge in GermanyTVBNOW 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。 x. ^0 L5 Z2 ?" }* t
The 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( m& k5 r3 L2 l8 d& n
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。5 c& Y$ L6 Q* z9 l9 d4 _# b* H
+ m& t2 |9 D2 ctvb now,tvbnow,bttvbConstruction 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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$ f' C9 N m0 ^6 ~% S9 x1 \: ]7 [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。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。 P+ K' F `5 u; Q& m. }
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