本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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2 b8 H% C8 k# ~2 Y& K1 P- `% jwww.tvboxnow.comIf you are not a Physics person, read on and learn a fact of physics. www.tvboxnow.com* m' T. u! Z* L* M/ Q( ^1 z4 T
AMAZING!
& g' T0 ^. u" X" F8 f$ ewww.tvboxnow.comTVBNOW 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。7 t/ d6 F9 s) H; P; f* w+ c( \: @3 P
Even after you see it, it is still hard to believe!" d) }" R6 @: p
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3 v/ r3 S4 x% i/ T2 [+ F4 ETVBNOW 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!
9 h2 W+ @% u, ^* WThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
& D8 V" n, m( O$ z/ ?It is located in the city of Magdeburg, near Berlin.9 f7 |, P2 h3 W" U/ Q- ~, ?* c6 D
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The photo was taken on the day of inauguration.
, x( z( D! e: _0 u. l3 Y' hTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇5 D4 V( `3 w2 O: w5 E
8 O2 h" E6 q; p+ Q$ awww.tvboxnow.comQuestion:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
1 c! E3 \9 B8 r. `$ c: Ttvb now,tvbnow,bttvbOr just the weight of the water?
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; Y: k* @$ l: G8 X. C2 X- A" vtvb now,tvbnow,bttvbAnswer:
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7 X: N. R' {$ z f$ PIt only needs to be designed to withstand the weight of the water!
; G% @% Z! P3 |3 kWhy? 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
' }7 K, S9 H) G" s7 k+ hThe 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. h; H2 w: f% V- S6 ~$ c5 F 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. 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。/ L# }# t& l* K( F
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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+ X$ w6 V1 S0 h b$ I6 A1 y C( o
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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。1 e0 w7 I6 D! ~ _9 q
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, D7 m. v+ F# H! X4 Z) dwww.tvboxnow.com
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發表於 2011-10-2 10:09 PM
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