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.
% A# }0 Z9 |( d9 x. L$ Q! 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。AMAZING! 5.39.217.760 Q2 `9 R4 h" B3 n: g& G
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Even 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! 5.39.217.76. ]2 _. G+ S v% P
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. - w" B2 h$ p$ C+ D; A5 p
It is located in the city of Magdeburg, near Berlin.公仔箱論壇; L1 ?% r; |3 B, H
4 }' w- S8 J" h0 a' p5.39.217.76The photo was taken on the day of inauguration.
T, w- {2 h/ s, V8 U9 m: t: r1 QTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question: I, [, H" E( l# a- A4 y! F1 s
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
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Answer:' e4 u+ J& v1 j! E/ a7 u: [
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It only needs to be designed to withstand the weight of the water!
5 N6 L: Y+ \( Z; b5.39.217.76Why? 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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' K5 o" J+ U' B/ 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。& q- u% h! c: R. d6 D1 X! m
The Incredible Magdeburg Water Bridge in Germany公仔箱論壇9 H3 D( \" Z% i* 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.tvb now,tvbnow,bttvb- i4 s i5 D8 Z; y6 U) K6 W) 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.
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% [8 Y0 Z7 \, `7 b' U; j9 q5.39.217.76Construction 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.
+ b/ f' k9 N2 i: o: 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。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。4 u7 o! |* e( m7 n1 D
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1 O/ i% }- b1 F d8 E% W7 [# _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。* C8 ~+ W" A0 G( O2 p/ w
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