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。/ n) z* @* t3 S& X( g! [% H
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。 u: |% R3 k3 Q: N# N
If you are not a Physics person, read on and learn a fact of physics.
% t3 y+ ^$ f/ O5.39.217.76AMAZING!
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/ [& q: a) J) ~6 |6 s5 |, W% H公仔箱論壇Even after you see it, it is still hard to believe!
! O/ M' C4 T: b I: R% d公仔箱論壇5.39.217.76! d6 a0 e" h7 ]0 ]5 L: r
, h6 G4 Z6 }+ x+ C, X1 ]公仔箱論壇Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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 L9 a4 U& W+ U6 Q% P. p& J
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 1 F" r% O9 Q! z5 O" }# X# J
It is located in the city of Magdeburg, near Berlin.5.39.217.763 B! O; U$ W% _% l& S- m$ m+ U9 \1 e
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The photo was taken on the day of inauguration.
0 L+ ~% ] Z8 A. s8 L7 QTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb2 q. {1 ^. W/ m
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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,5.39.217.76( }2 R) b+ k8 H7 U
Or just the weight of the water?
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% E' Q7 {5 [7 ^ l3 R! u2 uAnswer:! ^. o8 @ Z$ u* J
# B8 c/ h% n" r3 r1 U0 f: Y, [" SIt only needs to be designed to withstand the weight of the water!
. Y; t+ z) O; @2 KWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded( @% c8 P; t( n; r* f+ s" ~) ]: H
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( X3 c9 t, E+ h9 g% KThe Incredible Magdeburg Water Bridge in Germany
5 _ B E& S% p {/ V3 ?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.公仔箱論壇! @9 v- C6 L/ S6 I3 H# `
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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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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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。+ j4 m: Z$ ]& i- S& }+ j9 n
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6 J5 g; u* j* e% B* b+ C4 @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。; u( I5 K; t: U6 B2 Z, X) o- f" r
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