3 u+ V- d7 P) ^" P5.39.217.77:8898If you are not a Physics person, read on and learn a fact of physics. 4 w) O9 J1 o! G: k* f+ P5.39.217.77:8898AMAZING! tvb now,tvbnow,bttvb! c2 `# U m+ }3 E 公仔箱論壇" K) u* b4 O: q' K$ g! U$ I* Z
Even after you see it, it is still hard to believe!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。! m9 l( R( z6 ? [attach]1486499[/attach] 8 N- j( V2 Y; M; k, l公仔箱論壇7 }, Y+ L- X# L8 C! V8 T
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! % x- B5 Q, f4 H' _# A8 ~# @/ atvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. - X: V8 N; o. f; \! R
It is located in the city of Magdeburg, near Berlin. 8 _! b* S, c% S' ^5 {4 ?tvb now,tvbnow,bttvb & {( d; y& H# g; jThe photo was taken on the day of inauguration.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。6 ?$ n& S, k7 U) V
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇& |0 N4 P C$ A2 c2 k0 S- Y3 T w
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Question:tvb now,tvbnow,bttvb9 U. s' @: {- j3 C. K1 N
% R/ H6 u* F0 S* u9 [4 n, v; l/ ltvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,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。& w6 K8 L6 F, T% e" n" d1 r* e
Or just the weight of the water? tvb now,tvbnow,bttvb0 y" v4 e9 A0 }
+ n$ J' B8 v. I5.39.217.77:8898It only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb! f5 E+ `7 X `3 ]$ U
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. [4 F* h5 S! `8 ` 9 U: u6 F; e2 L% H' |
# i2 X4 n0 C0 X- x+ C; c5.39.217.77:8898The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb! _$ O$ v+ t. ^: z+ D% \
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 t- ~) x) c+ k7 y' F+ J* ktvb now,tvbnow,bttvbThe 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, e8 M% p1 p; w! K$ z& i; v
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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. 4 ] `9 d1 j1 g& Ftvb now,tvbnow,bttvbtvb now,tvbnow,bttvb7 [! a2 @6 z; w2 g
tvb now,tvbnow,bttvb$ k: s1 }% N+ u+ F; @+ F" U [attach]1486500[/attach] 9 a1 n3 \! R0 v5 s4 o$ Z[attach]1486501[/attach] & w# @% }, \. p. W, M' W. A( d b[attach]1486502[/attach] / e7 d1 c$ c- ]6 l S6 S8 i7 w; N4 A[attach]1486503[/attach]% e+ e0 l& Q' ~2 j! ^ { [attach]1486504[/attach]tvb now,tvbnow,bttvb6 V3 i' E( H) K6 m, u [attach]1486505[/attach] + C! |. p% |/ u0 O* i : x1 B- B2 |# B+ G8 P; l8 k$ H. K% |tvb now,tvbnow,bttvb作者: busyfun 時間: 2011-10-4 11:33 AM
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