本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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! P4 c; F& t7 E: C6 M9 tTVBNOW 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. + _/ B% v0 `0 ?; n. M
AMAZING!
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Even after you see it, it is still hard to believe!
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7 [1 x3 B) v: O& M8 tTVBNOW 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。
2 J8 A) U5 Y( p i; A/ ]+ IMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇' d3 d0 q( }( z! c9 R! ?2 @7 P
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. www2.tvboxnow.com- d p. x8 F8 C# K6 U3 n# E2 T4 a
It is located in the city of Magdeburg, near Berlin.
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. c$ e9 i, {; h1 A3 p4 x公仔箱論壇The photo was taken on the day of inauguration.
% [! f+ u% D" b% S b' E, G8 B* tTVBNOW 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。To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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$ T5 S# K$ P" w' Fwww2.tvboxnow.comQuestion:www2.tvboxnow.com% F7 d [# @$ N: ?+ o) W! N' j
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,) k4 m5 T! C' P
Or just the weight of the water?
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Answer:
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It only needs to be designed to withstand the weight of the water!
4 a6 o' _9 x: n N: u3 n6 qtvb 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$ T! k+ Y% L. L! f3 c3 u8 f9 a
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, \ M r w! }: n) ?+ ~The Incredible Magdeburg Water Bridge in Germany
/ I' H; N) u* F/ C2 \& xTVBNOW 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 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.tvb now,tvbnow,bttvb# @: X1 [- ~( f3 Q# [( _% R: 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. tvb now,tvbnow,bttvb) q# \. ^* V4 q
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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. www2.tvboxnow.com7 t. c: G: B/ p( X9 [5 I
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( j+ b8 B2 R9 h9 K公仔箱論壇tvb now,tvbnow,bttvb# i% m% G7 D& Z0 ~, j* r
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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。9 o0 |1 o1 p; U5 e! Y' ~% y9 f
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