本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 7 C( U$ S4 g# \/ U8 D3 X
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If you are not a Physics person, read on and learn a fact of physics. 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% ~' J P/ t5 a
AMAZING!
! Z: k: v7 V4 T. ~# [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。
! o0 ?7 g& c- `8 J" j3 }6 |Even after you see it, it is still hard to believe!tvb now,tvbnow,bttvb, H1 \, I3 S/ s- O
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; r: D5 O. w0 @$ v9 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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! * }+ m: ^9 o6 D8 ^
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
0 Z# O& V- w9 h, b, D; [6 U& }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。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。; B, l2 s9 h; [% M$ ~( T9 M
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。. g( A# T+ n9 R) F
The photo was taken on the day of inauguration.
( E; j: W9 j6 M" C0 I: v5.39.217.77:8898To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb8 A. B8 `, P0 v
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Question:
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+ ^; V" S3 @' j2 _# \+ ptvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
8 J: i# d I2 ^: J9 K& z1 Ytvb now,tvbnow,bttvbOr just the weight of the water? - r. A" U& E3 e9 Z: K5 W
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Answer:. p' `3 a+ d& S' x4 _7 k+ p5 } Y
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It only needs to be designed to withstand the weight of the water!
" y; I0 P# H4 y7 z! |; s4 Otvb 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, m4 K2 K; o. s$ R7 p( \" P: }
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The Incredible Magdeburg Water Bridge in Germany公仔箱論壇' z; i: K, B* X& j
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.
/ j; p5 h4 E7 g5 Z2 \. X- R/ uThe 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.
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1 l. d4 ?# Z* j( t9 jConstruction 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. ' J+ L6 j/ s' u4 x. D
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5 G" t6 ~6 g) N4 }" ~( ~, e( HTVBNOW 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。
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