本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
8 P8 I5 t0 j2 ^9 V- U! MTVBNOW 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。公仔箱論壇0 z0 K/ M& g" D
If you are not a Physics person, read on and learn a fact of physics. www1.tvboxnow.com9 Z0 q, l& j' G' h m
AMAZING! 公仔箱論壇" f2 [) g/ h( }* H
3 z3 y$ f7 [; V! ~& B7 J$ ]9 yEven after you see it, it is still hard to believe!www1.tvboxnow.com- g& [/ G$ \: u6 f
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
3 w; a' ^: R, R7 w( D3 \This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
/ w+ j" Z2 M7 M+ ttvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.公仔箱論壇8 v! \) k5 \# T8 W
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The photo was taken on the day of inauguration.0 M- S7 o8 ~% }: a
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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2 c# k' n! U4 _* j# P9 i. 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。Question:% ~3 S+ E s5 k. P7 ~( R+ W. `" H
# ?8 X8 N" y- Z$ r- o" B! a5 {1 u JDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
9 x! h6 D# {! i+ o6 s6 Y% U: n4 E8 b& m: p公仔箱論壇Or just the weight of the water?
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g+ k3 r2 p: c0 ~; ]; b: m5 ?/ r% Owww1.tvboxnow.comAnswer:公仔箱論壇* @: H3 Q% U; y7 R
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It only needs to be designed to withstand the weight of the water!
( l+ d3 N. |8 J/ H- f' g/ l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 loadedTVBNOW 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。4 X. z2 L+ p/ j H; V; p0 Q; o5 [3 ]
% d: Z6 T9 J8 A4 \5 ftvb now,tvbnow,bttvbTVBNOW 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。% Q( ~6 G/ f# q; O; b
The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb, k% r( Q9 O; C; K* n+ B! }7 B' w- y
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.6 K8 y/ Z% \: [- M9 _6 r
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.
8 Z5 g# N. r$ x! k2 K3 c" S: 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。+ u* n0 i- v5 _5 ]. m2 X* i
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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: I5 D2 i% @+ q) T$ q7 Btvb now,tvbnow,bttvbTVBNOW 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。 h8 w' J/ u; ]# F8 }
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 t' y1 i; S6 O6 t
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' r5 ~) ^9 U( u2 U3 ] KTVBNOW 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 @& ]9 M4 E3 V( N, ~$ c
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