本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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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。! V* @7 z- L! F7 v- S
AMAZING!
& U6 }/ H A* Q# K" l4 F9 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。0 w0 _; D! B3 r# h# V; Z y
Even after you see it, it is still hard to believe!8 i* f; F& }# F& V; R2 N
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
S5 b( X% F0 Q& |- e# ^5.39.217.76This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
; ? R H( E+ B A, ktvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.5.39.217.76: ^1 l! @7 J* r! X! e6 A# {3 ]! W
: e0 _6 p! A5 \# t2 E3 vTVBNOW 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 photo was taken on the day of inauguration.
" F, U* w- F! x7 ]5 L5.39.217.76To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
9 ?$ m2 R m |0 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。# S4 ?6 k) b2 b
Question:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
8 w' k& u8 Y6 B Z1 f公仔箱論壇Or just the weight of the water?
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. [/ }0 |0 h; j* y! m公仔箱論壇Answer:
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It only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb1 O2 L) R4 q+ p1 K' n
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
" m4 @! l% x" C \/ dTVBNOW 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。& c9 Z1 J) s% ^2 O
2 S0 E3 N" Z q# \9 ~( ]0 Ftvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany
' K5 t, S! y9 Q" b公仔箱論壇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,bttvb5 h7 X- J6 [6 Y5 r. ]( o& x
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.
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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. tvb now,tvbnow,bttvb' q, H E: s) e
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