本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 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。& D( N7 M- z$ A# P9 ]" E5 h+ d# i# x, [
- U, @9 `/ }8 T% Y1 G: Ntvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics. 5.39.217.76+ S% t, v: o& ~8 e
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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。5 O& Q e. R8 P8 i7 \
Even after you see it, it is still hard to believe!公仔箱論壇" H& Q ]# F4 z
. j+ R5 Y- H- C" L9 u7 @3 UTVBNOW 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。# Y. A( d5 r y3 a( a" T |' p; ?
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
' v! T3 U' S% P" g. W' sThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ( U% M3 M+ `# M/ J# o1 ]' B- h
It is located in the city of Magdeburg, near Berlin.
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! I" ?7 D, `0 _公仔箱論壇The photo was taken on the day of inauguration.
% Z/ J- a b8 \' v, w" l! x5.39.217.76To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:
- Z% F/ J$ s6 j7 V/ j+ 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。
/ y4 g+ w' U" O7 |; W/ nDid 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。( i3 p. u# V9 J6 v: ~% |
Or just the weight of the water? tvb now,tvbnow,bttvb3 l' h( q& G6 _2 o9 W2 G. R
tvb now,tvbnow,bttvb% d' {/ `) [- o( M, R
Answer:
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4 p5 ~3 M/ _5 B8 p% c! E7 |% [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。It only needs to be designed to withstand the weight of the water!
- G* @9 J2 f5 q8 uWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded9 ^& A# U: G2 {3 }/ E
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$ N0 a; ~9 S" F5.39.217.76The Incredible Magdeburg Water Bridge in Germany
) L. H- ]+ P8 @( w+ e7 JThe 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.
. }( [) }% S4 F7 T! NThe 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. 公仔箱論壇1 e- C6 o p* n# A' v0 \
% t) j8 \8 j% x7 q& V: ]tvb now,tvbnow,bttvb
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3 w& D& N& N! h u' Z1 ftvb now,tvbnow,bttvb. f/ F& v6 p0 v3 C. w/ l- W
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/ d/ N# x5 K% H, u' R1 E0 H5 B8 |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。
* D! X0 Z" T$ K! u/ PTVBNOW 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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