本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 8 G3 Z5 ?* ], @
5 z! q; w6 w+ V3 vTVBNOW 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。If you are not a Physics person, read on and learn a fact of physics. : q; J# y7 P; Y. p0 F: U. J
AMAZING! 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。+ s/ s& H/ S$ z. c) q" @
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。0 P6 j1 [. s e3 g" B; G- B5 A% {
Even after you see it, it is still hard to believe!
$ j4 v. B( T! U, z' V公仔箱論壇
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; V' @: x. E2 l4 I* V5.39.217.77Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.777 A2 _4 \1 ?2 o/ C
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
: Q+ a) W i, l- v7 F公仔箱論壇It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
% u2 b% p" f- q6 K E0 L* V4 U' vtvb now,tvbnow,bttvbTo 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。! G. Y1 F B& X8 G) q3 b, 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,
; v, h0 C1 T- Q) y `2 Z" Z公仔箱論壇Or just the weight of the water? 5.39.217.771 I3 u! |/ ?8 E- [; X! z. m: k, V
4 j0 ~0 o+ L3 S" f3 EAnswer:
5 X' r, M; h* t _6 R" W9 ~: zTVBNOW 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 j) f* ?" x+ @3 j$ y5 l6 }tvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water! 2 K; i9 |2 G1 U8 Z
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedtvb now,tvbnow,bttvb$ `7 } @2 D% z# h# l, [$ x) h& Y
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. W S3 ?) j) z2 t; S2 o$ r5.39.217.77The Incredible Magdeburg Water Bridge in Germany
+ h* T" ^( Z8 r% e5.39.217.77The 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.
/ E7 w$ z8 O' n# K5.39.217.77The 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.
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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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0 t$ s" Q4 S, E% C5.39.217.775.39.217.77) Y L! h" U& O; i C; e; q
% }6 J H/ B9 `7 ?( WTVBNOW 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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( }+ T7 r/ \: C7 B/ S5.39.217.77TVBNOW 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。; F9 I: _' d2 E7 ]# P! T
- ?+ V( D+ u0 l0 m& X) o5.39.217.77tvb now,tvbnow,bttvb( g( I1 J! N5 |. }; x
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