本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 / Y1 y0 M4 g4 s2 n( G
& ^- p) i R. o2 b; Y1 [If you are not a Physics person, read on and learn a fact of physics.
8 q' T/ {( m+ }; h1 G* C" H2 p1 ETVBNOW 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。AMAZING! 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; F; f; o# e. r/ l
; B" t* t9 L# \/ gEven after you see it, it is still hard to believe!
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! : {+ X' Q0 |5 ^( o% B9 R, e
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. , d7 t2 g( n; u. j# ^7 c) U
It is located in the city of Magdeburg, near Berlin.5.39.217.761 P$ e; f/ S3 Q {9 [
! ~8 M* f3 f$ `/ J" P* g ]6 Btvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.
; ~3 r$ {; e, u! N. D1 Q8 @To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:
. Q( A9 M! m4 Z( K公仔箱論壇
6 b- u+ w1 Q. k- m$ u0 G6 I/ 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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,# |- {& ]' k2 g C' U" i
Or just the weight of the water? / k/ D3 p: {- X, \8 O
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Answer:
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1 h6 n* h) U7 V2 C! N* JIt only needs to be designed to withstand the weight of the water!
5 w# h' e& o; m; U% c/ Utvb now,tvbnow,bttvbWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded, V% w, v' m0 o
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9 u. n) f" I5 \1 N5.39.217.76The Incredible Magdeburg Water Bridge in Germany
% c q D6 ^/ Y7 b! 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。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.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。% b3 Z# A. f- Z+ L. L
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. , I0 A/ P# B: x0 g2 H
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。, y# U# g5 Y$ a4 i: n
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.
; h0 {$ v. ~# e9 itvb 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。: h: e% g* J S% |1 l. G
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1 d) w' S. V2 q: S( l. V# |公仔箱論壇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。/ H0 A+ y; _7 N$ E1 P3 z
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