本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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% Q9 R, o+ M* Z5.39.217.76If you are not a Physics person, read on and learn a fact of physics.
! R; k/ O+ L& m+ Q% A6 {( F2 A5.39.217.76AMAZING! 公仔箱論壇" y, d# J6 }1 z1 V+ O$ w
+ d$ X9 ~+ g" Y) `# \: i JEven after you see it, it is still hard to believe!5.39.217.766 b# C3 I: ~, t6 l# p9 o. q8 W$ E$ |
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/ P* a/ H8 B% m5.39.217.76Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
3 c' ?5 E& z: T0 a0 j' n6 s4 {5.39.217.76This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5.39.217.76% O$ z/ w9 M) O, x6 N
It is located in the city of Magdeburg, near Berlin.
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9 ~6 @: f) ^, Z) m/ p公仔箱論壇The photo was taken on the day of inauguration.
8 V3 F) y- D% z# b e5 o$ f8 Q5 T4 TTo 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。0 e0 Y) S6 X) i6 W, H! G6 U
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Question:
% @) @! J" X5 P1 }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。
; X v3 i9 }- K4 E7 R! W' K8 `; X5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,$ o4 p% a- ~' P) @9 Q8 C3 ?" f
Or just the weight of the water? ( i, n6 i9 @4 G7 u/ }: Y/ ^- D
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Answer:
2 z* i! m9 j. x" t: C1 A1 Z, U$ Rtvb now,tvbnow,bttvb
5 I" r$ V! v' _, M# O. LTVBNOW 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。It only needs to be designed to withstand the weight of the water!
$ s( ^8 K5 X- A) AWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded. c: m' M: e) n
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The Incredible Magdeburg Water Bridge in GermanyTVBNOW 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。( _" V; O/ }; m( j0 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.
8 Y. z- s# o H* Z, Qtvb now,tvbnow,bttvbThe 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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, ^6 G, |4 D \$ xtvb 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.
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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。4 G/ x0 y; H% x& ~+ J4 s: g
+ [% y5 @ @2 p4 A' l, DTVBNOW 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。
# d6 h+ O' h2 ]( S! G5.39.217.760 Z% k( x( q5 `. D" o6 R
6 s8 w" [2 O& R0 C H5.39.217.76TVBNOW 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。1 n, c5 y' {) T
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