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.
4 w- m2 ?( z+ C* b. g* IAMAZING! 5.39.217.761 X' b+ p$ d- R0 ~4 ?7 J# z) Z# l& a8 C
5 N/ O+ R, d" i' K5 Atvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!公仔箱論壇) o' s0 Y3 { i, c; u
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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。9 e0 P- ~2 {# G; \9 W
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
5 x, m6 _* ~- B# AIt is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb2 N& J* Y; s9 p7 C. q( Q' V
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The photo was taken on the day of inauguration.
9 b; i( Z4 Y( O5 q4 Q4 DTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:公仔箱論壇5 ^# c h. N$ g2 V8 M
! x' L2 K/ c* J6 F4 ttvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
B) }' u4 {: {! pOr just the weight of the water? + R9 \) G6 U- y
8 }) f- L9 z" E3 g" w5.39.217.76Answer:
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It only needs to be designed to withstand the weight of the water!
3 C: _" B: h7 QWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded
" q% R8 ?; Q3 ` W- }/ ^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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( F. X0 y+ K2 f公仔箱論壇The Incredible Magdeburg Water Bridge in Germany
8 n" z/ T7 A' C2 Z* 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。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.5.39.217.76) [9 X9 B" ?% x% p {6 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.
9 l9 w& F* }+ S$ n) {- ^3 [* 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。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。, Z9 J5 f9 {2 `3 s
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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7 `7 d/ c! @: M _公仔箱論壇5.39.217.76# H+ w( }7 L! z5 a# E
3 h/ K0 b- s" ~- f' I6 O' |% `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。公仔箱論壇$ U( Z/ T* B* D- N; @9 g2 k
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& t; v! u. D/ 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。 |
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