本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 5.39.217.765 R* c3 ]' o* a5 ]
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。* a0 h1 B0 C: J5 ~# H# f3 D0 m( U
If you are not a Physics person, read on and learn a fact of physics. 5.39.217.763 I) k% }5 n6 X" w$ e
AMAZING! tvb now,tvbnow,bttvb) p9 ?4 _! G& d# l6 E) Y
# {: W; j/ K4 k& y3 r8 b& y* ?+ D, ktvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!
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4 \4 U* w$ |& @4 |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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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 ~& F3 P, t) m
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇% Q( ]! ?9 D- V7 d; x( G
It is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb0 _7 c4 D3 d8 I) }5 m9 m7 V, p
* k1 R: b* n9 f8 \/ nTVBNOW 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.
3 B7 p' Y* g: o1 G8 o3 s" R% H! d. NTVBNOW 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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, M! y+ Z! v1 k& E' O公仔箱論壇Question:tvb now,tvbnow,bttvb/ K; F1 s8 ?) s9 R: @# P
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
% ^& r/ Y a) C8 x% \) u( y P& I$ EOr just the weight of the water? 公仔箱論壇! F& t, |' R" f8 F; s Z i
) e9 I+ t% N3 B3 V6 x; {2 o* d' UAnswer:. [, c8 F. `& R# f: r$ o4 g
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It only needs to be designed to withstand the weight of the water! 6 l/ d+ f' Q5 s* S s' j9 |6 P
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
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- M( s: N8 \1 n2 E& T& |+ v5.39.217.76The Incredible Magdeburg Water Bridge in Germany
, A" G# w; Z9 f4 P& A* \# e. z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.
0 v% s: E0 E+ FTVBNOW 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. + F! m7 P! @0 v! z, d
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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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2 Q3 l$ N0 M& j" {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。2 D5 u& o$ U- J, V* ^) K( j
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4 D# j/ _/ a5 ~5 P: V5 Y2 i: wTVBNOW 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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