3 M: m, |: X: E6 g$ ~5.39.217.77:8898If you are not a Physics person, read on and learn a fact of physics. 5.39.217.77:8898* ~% A2 P6 c5 g" B* ]
AMAZING! * ~5 Y* M1 T/ T0 I L4 Otvb now,tvbnow,bttvb9 c( o/ `3 [8 M1 A' ~3 a
Even after you see it, it is still hard to believe!tvb now,tvbnow,bttvb; z# z3 L5 @2 O( E% _3 l' p [attach]1486499[/attach]0 l6 z6 }% N* u
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! , L5 |& d: _- R- g" 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. tvb now,tvbnow,bttvb) H0 z/ _% d& N5 R. U. Q1 W
It is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb; u6 t! k$ U( m" W- ~5 T
% H- ^2 |, i& `公仔箱論壇The photo was taken on the day of inauguration.5.39.217.77:88987 L/ T" L3 S( x% P# {& o8 \
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.$ N3 Q$ Y1 D+ S7 f* ]5 m8 {
6 r" n( [9 Q8 m0 g+ stvb now,tvbnow,bttvbQuestion: + y# ]1 ?# k# h5 ?- {. T4 ktvb now,tvbnow,bttvbtvb now,tvbnow,bttvb# N$ r/ S$ p$ ~$ l) W
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, 6 y- X ~+ l/ 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。Or just the weight of the water? 5.39.217.77:88987 x2 r+ h: U6 X8 f5 p4 r
tvb now,tvbnow,bttvb* E' D1 o8 m: C: f( s2 p0 _
Answer:- A: S4 a! Y4 N
' m0 n, \1 ^2 [3 @- l5.39.217.77:8898It only needs to be designed to withstand the weight of the water! 5.39.217.77:88986 g% X1 T2 Y: v$ x- c
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 ' N! c# ~5 }$ e {2 Z L7 itvb now,tvbnow,bttvb5.39.217.77:88988 `/ R( ^! u) o& ^; P/ |9 x
tvb now,tvbnow,bttvb4 M8 B# c0 [6 d) H7 i7 F+ L The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb( d) Z) v% n2 Z. `- }1 F* {( h
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. 7 E k+ E1 A) @2 S! g公仔箱論壇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. 公仔箱論壇! i- S- ]% R6 E2 ?3 ^
/ n) M2 y, E$ B1 j5 h1 rConstruction 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. 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 Q1 i: x+ [0 b5 d3 \
2 `5 P( L* @/ j" `( ?' n. Ttvb now,tvbnow,bttvb 3 l% t( j) R& Y9 k$ n H7 o# Ntvb now,tvbnow,bttvb[attach]1486500[/attach] : r; t7 |6 Z5 H' t[attach]1486501[/attach]- I7 p1 G. w v [attach]1486502[/attach] " k3 c( v; K' Q, N7 D( `1 i0 q3 d5.39.217.77:8898[attach]1486503[/attach]公仔箱論壇0 M; [- m% w" M, c [attach]1486504[/attach]公仔箱論壇+ x$ J1 K0 i, k. g [attach]1486505[/attach] / i( |# N2 X- V * ?# b. v7 l8 l9 U: iTVBNOW 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。作者: busyfun 時間: 2011-10-4 11:33 AM
