本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics.
% ^5 h* y- l9 \AMAZING!
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Even after you see it, it is still hard to believe!tvb now,tvbnow,bttvb3 u4 V3 w. _. }
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2 q* P8 i4 h8 d, M Q6 I* {tvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! . @, s2 Z% v/ M
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. . | c; p" b# C! r+ d. q1 N0 d
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。; ] m' w9 g. R
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The photo was taken on the day of inauguration.
8 k7 H4 a9 X8 Z' JTVBNOW 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。To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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; ]' A8 h e9 }5 M* l ]
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Question:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇% L' y3 }# U, Z
Or just the weight of the water? 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。7 |0 y0 z S7 v& E/ A
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Answer:
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1 R8 S4 o0 B$ L& F# @0 Y5.39.217.77It only needs to be designed to withstand the weight of the water! 公仔箱論壇8 k! K4 w' ^: v; ^3 d6 u
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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% L$ o l% p q2 u7 `7 }: \7 Y公仔箱論壇The Incredible Magdeburg Water Bridge in Germany
8 s$ ]& i) s3 T: e2 T9 |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。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.
/ s0 L' f1 {. ^: b2 Y( d5.39.217.77The 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. 5.39.217.77. E2 C2 B6 A- K6 S1 P6 Z
7 |3 q# }9 g+ Y/ R4 Jtvb now,tvbnow,bttvbConstruction 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. 5.39.217.77( b# ~1 y @8 H, B7 A
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1 |/ g9 J* _- i8 U, n& o& o6 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。tvb now,tvbnow,bttvb+ j; }7 C- I! p1 g# _
6 U2 k$ O" Y0 [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 o4 v* c/ N. n3 `( |$ L
7 N4 k, l" V# R1 B4 ~3 e9 B# 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。
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