本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
& b; [8 b- ~& \7 H; V% d/ W5 @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。5 {3 x/ m5 H5 Y1 j7 s* h: f. d
If you are not a Physics person, read on and learn a fact of physics.
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9 m. O9 O3 q/ r- l3 `公仔箱論壇Even after you see it, it is still hard to believe!
9 p7 W7 `7 C5 K. T. r6 G5 \' S' O2 V6 x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。6 j$ l* F! x' x) t
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! & R: i0 O6 |) L( u$ \
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5.39.217.761 u6 v! J# ]' f, B7 W; t
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。6 ~( v1 j( O9 y4 f0 u, y ?( X6 D3 I7 @
# @$ z+ ?. m; f% O" }The photo was taken on the day of inauguration.
! d& D, F" W% C& V5 ^ a公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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, g3 v* y, P) z/ J: v1 ?3 bTVBNOW 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。Question: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。3 S. N& z3 `3 Z1 H
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb: }( p$ H! j6 S% r
Or just the weight of the water? ; K% l/ @, r9 d0 a6 _
, P7 n" d% C/ K" a3 s. C- e0 H% uTVBNOW 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。Answer:- m+ p9 ?; g! t
, y, G& C$ e- j% z& P; PIt only needs to be designed to withstand the weight of the water!
7 U4 w6 f6 a/ {6 Y公仔箱論壇Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded3 o6 x% s" C1 A! E
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! {6 m& f! `" F g
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The Incredible Magdeburg Water Bridge in Germany+ I S3 ^9 v y9 A
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.
+ V H0 w" s3 H+ o- f# j% O5 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。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. * V2 f' g0 B9 ?) ~4 g7 t! 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.
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