本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 # ]! s/ C& N5 g& O# {6 [
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If you are not a Physics person, read on and learn a fact of physics. 5.39.217.76% p, J1 z- L- I7 |6 W% B7 d) Y: I
AMAZING! ; B3 v) L- ~2 \$ z1 F
$ Y! F+ O# z& j$ e+ q* V. PEven after you see it, it is still hard to believe!
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1 I7 u: s l# R, Y* Utvb now,tvbnow,bttvb
- c% O: b. ~3 Utvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! $ p. B4 _( C% ?5 T5 ?% h
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. % l- j& Y, S: r4 C
It is located in the city of Magdeburg, near Berlin.公仔箱論壇9 `; K) N' K" a! y
% k, S8 w3 `& P' {公仔箱論壇The photo was taken on the day of inauguration.
, B% m* }' I9 ]' f0 M+ l5.39.217.76To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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。. H; B9 W4 t" E9 i8 f' K; I
% m+ f a2 ?9 P% H) gQuestion:
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Did 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。6 r" a; G. K' H7 p+ Q
Or just the weight of the water?
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( X1 W d9 h6 A) U4 HAnswer:5.39.217.76% r. e8 P) y+ T5 F; P6 B ~ G
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 f6 |# W2 s6 s7 \ I
It only needs to be designed to withstand the weight of the water!
8 E$ k4 ]6 r3 ?, O! j' n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 loaded
! Q" j5 Z0 R6 m5 z' z2 b公仔箱論壇) X8 E+ T1 t9 t j& l' ?
7 }& h6 I" O& e& K+ \, n; f D, DTVBNOW 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 Incredible Magdeburg Water Bridge in GermanyTVBNOW 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 x( g- W+ A7 u3 f/ I
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.tvb now,tvbnow,bttvb( J# J* e) U. c o' p4 Q7 k
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.
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, [: V3 V" X5 s+ N1 \8 N0 Ptvb now,tvbnow,bttvbConstruction 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. 5.39.217.767 U9 X( S3 w4 |$ }
! d+ A" g7 V+ y/ h# |2 D5.39.217.76TVBNOW 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。$ ~; J; C- P2 w* _3 L' D
/ |( X6 f% I. X* F9 a8 t: y, O, ]' A公仔箱論壇, t. f; o/ u% u' b
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6 ^$ |7 \4 S8 Z5 B2 H' rtvb now,tvbnow,bttvbtvb now,tvbnow,bttvb" |: X0 y0 p& j8 r6 q$ @
3 [2 @. W/ D% }2 ytvb 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。8 ?9 \7 i9 v% T0 n' A* X
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