本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 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。: O3 @7 u5 U, r/ g# k
+ x# n* k/ a* z1 K7 B n2 m, |tvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics.
5 k" p6 Q1 r. P% y5.39.217.76AMAZING!
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; l5 J# G. b9 V% q) [" X6 yEven after you see it, it is still hard to believe!
* t3 W! X( c7 V- y K8 A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。- T' e- N3 t `7 r4 q- @
H. Z Y3 z1 N6 R( t. kMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
4 ?" y9 o2 n% d1 g3 x3 j" ~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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5.39.217.76( ^# F8 v. o4 L, |4 x
It 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。5 `" J- `* i- b) F# R( X
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。# v# z0 U8 t$ Q% S4 Q5 r+ x" [
The photo was taken on the day of inauguration.5.39.217.76$ s* X. ]6 }/ [
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb$ j7 v' f7 C" u, W/ _. z4 B# g2 j
% F) h% b$ [0 c# E: `Question:
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& d. k; v3 [7 qDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
6 y/ t H# W" ]/ ]5 UOr just the weight of the water? 公仔箱論壇) f% }" l: J$ r* M. |
) C5 S2 h2 G4 B2 C3 m: ^公仔箱論壇Answer:
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/ Q- e4 ~/ T. Z3 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。It only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb5 V1 h1 U) @+ X( v$ r& G
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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' y, c/ Z# N5 B B9 ?) W# AThe Incredible Magdeburg Water Bridge in Germany公仔箱論壇! l- W/ W4 [4 L8 X8 S
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。/ r, S: z* N) A1 `
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. ! s' T5 |+ [+ `5 P8 _4 N6 @* P
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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. 4 L6 b2 g* }6 I5 L9 i, s
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. h3 T5 K# @; c& p' M2 Z+ N$ {5.39.217.76% m- B; M4 v& k# N; Y: H$ Y1 r& N: w
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 J5 {( ^! F Q0 ]- j
tvb now,tvbnow,bttvb9 g/ K$ n# b5 ~5 }* S% O' `
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。1 N r2 U, D( {; l9 q, `& |$ m, F
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1 j) j: b, l2 U, I) UTVBNOW 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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