本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
+ Y2 f6 F$ X" c. A' c5.39.217.76
# F& d E( H. z: @1 [$ F2 ]2 e J5 i8 DIf you are not a Physics person, read on and learn a fact of physics.
9 v9 i. g( F' w! B5 J) bAMAZING!
# s: z% s2 m. a& 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。+ J2 k' S4 |, Q8 j# j! H
Even after you see it, it is still hard to believe!* ^: W7 X' D: G' Y# N
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! % `4 ?; I5 ]0 e+ l
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
G4 r+ k3 Z' @5 j; j7 c- x6 oIt is located in the city of Magdeburg, near Berlin.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& Y2 r* [) g/ B6 x9 n: E4 C
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The photo was taken on the day of inauguration.4 ^9 }7 D4 b1 d1 A0 S4 N9 S! i
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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! C1 y# M6 L- m1 V* p6 q8 oQuestion:
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& o; `# q& j! B( v3 N, q7 w! |4 o5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.76, x$ |: J+ u7 u
Or just the weight of the water? 公仔箱論壇, W% x8 Z9 v) l# I
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。2 z# b- t& P4 v* z* B% U
Answer:$ W1 ?4 @* P2 o; Z
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It only needs to be designed to withstand the weight of the water!
6 |" n8 W0 u: k1 L0 x# Q6 ]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
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' \/ ` x" t* [6 }9 XTVBNOW 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 Germany5.39.217.76# J8 c* ^9 t$ Z% Z8 Z, c
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.
: ]8 x! A, ^8 v0 P5.39.217.76The 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. , v4 Y& c& A H- k" | n
( ]9 [8 M4 o1 C3 v; |. e$ bTVBNOW 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。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.
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9 j+ B8 B7 Y; |2 W* Z) 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。/ D. B7 h5 W3 L. M; k, K2 N
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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 ]. |4 ?0 g! \! Z! U
' n2 _( \0 n( |- D4 F+ \* b* @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。
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