本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 5.39.217.76& W/ B% x' E0 a% E
1 o8 p0 l7 S- s2 u2 `+ v: p3 wTVBNOW 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。If you are not a Physics person, read on and learn a fact of physics.
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8 Q) j, f/ x( d2 R4 ^# ^ Y# `2 I6 Ktvb now,tvbnow,bttvb) D2 }* \; F% x+ ~7 M% E
Even after you see it, it is still hard to believe!+ e) r( P$ b) m, N0 _4 F
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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。# S/ t! c5 } v* R/ y
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
) h7 O* H' l! ]9 v3 Z) Z: \# qTVBNOW 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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇5 A5 g6 d' e3 s3 D
It is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb8 u; l, O+ D: ]0 Q
1 W9 _, O% g% O( Q- LTVBNOW 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 photo was taken on the day of inauguration.8 V6 ^) K) t, o
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:
( U7 g) }6 C2 f0 s0 X" d5 k- [tvb 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。( C6 G4 M. S7 I4 s* r( x& x" ?
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
8 W7 x! u/ E6 [. d3 m# L4 L& E fTVBNOW 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? 5.39.217.764 {+ ?% j; u& c# D# m
4 q0 c1 {! k) f/ OTVBNOW 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。Answer:
, }7 T5 ^9 s6 K: ?4 l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。9 x9 n& l8 h r* s. p* o
It only needs to be designed to withstand the weight of the water!
& u. W6 {4 e. Q& e' yTVBNOW 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。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
$ U. r$ r9 u- m0 L) C! [) {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。公仔箱論壇8 O5 x4 j, | Q7 S2 k
) {4 V$ a# ~( i' 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 Incredible Magdeburg Water Bridge in Germany
1 D1 m2 ]. G9 C, K公仔箱論壇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,bttvb6 m9 D7 l* B+ a8 n9 {" k" q
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. 5.39.217.764 v0 i0 o6 k, C" z
, x0 o; t" O8 A0 aConstruction 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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6 O$ h) s4 s1 k6 N& v5.39.217.76! `4 e% g/ i# `8 E
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。+ Q: n0 U" D1 S" r. T
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9 e* Y" T" v7 B& M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。! Q' b& w2 _+ U5 L
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