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。& F0 S" u. B4 f+ e& E$ [, A
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If you are not a Physics person, read on and learn a fact of physics. 5.39.217.76! v- n: J% L" X" a' K/ {
AMAZING! 公仔箱論壇! k. N/ l5 N0 t8 P6 ~+ s
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Even after you see it, it is still hard to believe!) D3 H) I4 e- L6 S/ Q* P5 h9 Q0 O
% s0 ~6 ^5 ^# ?, T) o$ w$ P( ^; tTVBNOW 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。
% n& Q5 R' O! b! w) ^6 NTVBNOW 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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! $ e# Q5 l. F6 h: ~& I
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7 ?: f, u& _( Z6 x
It is located in the city of Magdeburg, near Berlin.5.39.217.76( _; r! j. L4 f n
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The photo was taken on the day of inauguration.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。8 _. G! m6 J6 F7 |$ D3 H
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
# h" F3 P" j: y' ^- aTVBNOW 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。
0 a& T7 Z) p0 i* J- ^5.39.217.76Question:公仔箱論壇. [6 s+ G% P" z0 j/ ^
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, R5 E$ D3 o7 z' r
Or just the weight of the water? & g1 d/ x7 ?1 b( _8 L
/ X* s" g' [# S# j5.39.217.76Answer:
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It only needs to be designed to withstand the weight of the water!
' e1 ~1 Z4 L2 ctvb now,tvbnow,bttvbWhy? 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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The Incredible Magdeburg Water Bridge in Germany
5 p$ Q, T: [) s2 j) b0 s( K6 NThe 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.公仔箱論壇- C& i& m1 V+ Y/ m
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. 1 ?, N G$ O8 X$ P% S9 r/ L
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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. : {; a, J& F1 }9 M+ e
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1 N; Z( C* S1 Q9 L9 {/ ~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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