本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
* r/ X9 ~: v9 J gTVBNOW 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。tvb now,tvbnow,bttvb. B/ w1 P8 A' y* } V3 s
If you are not a Physics person, read on and learn a fact of physics. 5.39.217.76- S' u, F1 Z, ~" B
AMAZING!
1 f3 w0 w1 ~' g) m% cTVBNOW 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。
$ s" [* m# M; Y$ P0 X* x2 Rtvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!/ s" E9 P2 A# }; ^! `
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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。0 y0 i. Q. {1 h0 Y# q7 z4 n: q0 e% L
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。+ I- R6 i( Y5 n% X0 @: b
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。5 c' q, |5 [ r
It is located in the city of Magdeburg, near Berlin.公仔箱論壇* V5 v+ Q+ i' s$ q- ~
$ d, i! m Y$ N% `The photo was taken on the day of inauguration.2 F$ K3 ^! g& J0 L- U6 K2 b
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists." y7 J# h3 i3 v1 P8 J. y% k
% X& ~- D% ~8 u& T, P# X$ TQuestion:* N: ~! ~) M( W
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
; ~& s8 F0 m% atvb now,tvbnow,bttvbOr just the weight of the water? 公仔箱論壇5 R# [+ L Z/ h2 @$ ]
6 J3 b# U. r# [' F: J ~tvb now,tvbnow,bttvbAnswer:
& u$ H" k$ r P* [% sTVBNOW 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& l2 E; R
It only needs to be designed to withstand the weight of the water! 5 h3 C- R; @2 I- Y
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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The Incredible Magdeburg Water Bridge in Germany
' G: i5 t% e2 g f/ w4 }2 fThe 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.
# a2 E& M E/ k* Ftvb 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.
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% ^9 K; ?- G3 c/ wConstruction 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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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。+ ^' R& L+ c' R# n
+ q- \: Z1 D& u0 o% X1 etvb 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。' I7 S3 v, O2 R2 L/ [
5 I- r# A5 y) b' U. X5 |! y1 ZTVBNOW 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# M5 F* @& h: y/ L
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