本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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% C, T; r/ I5 x+ ]公仔箱論壇If you are not a Physics person, read on and learn a fact of physics. - F2 A/ G$ Y. r" ~
AMAZING! 2 N4 p/ G2 B- a* [7 d
0 t) l' l' j7 D7 T" R% [5.39.217.76Even after you see it, it is still hard to believe!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。: O' w4 R1 @) @: Y9 K' x* P1 l q
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" w o& |* s; a2 vMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb2 u+ L: K' E. V+ Q1 F! s
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
3 Y+ J* Z8 J9 k$ ^' v3 j) z5.39.217.76It is located in the city of Magdeburg, near Berlin.5.39.217.766 r( S4 {% _0 g! o, n3 k/ \4 {
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The photo was taken on the day of inauguration.
3 a! @ R( F! Q3 ^8 s: ktvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.) W; d$ t" A0 M1 i3 `3 m
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Question:公仔箱論壇" h: i, h$ i2 K$ I
# E4 Y0 ]: u6 i# x% V& z8 J! Mtvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic," T. s* P& r( e: e9 n3 d0 ]7 F8 q
Or just the weight of the water? 5.39.217.762 z, l8 R W) H$ J$ S' M
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Answer:
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7 j) \1 V& g$ [/ _! UIt only needs to be designed to withstand the weight of the water!
& U" m) ?. ~$ ]3 y# G8 ntvb 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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( u8 Z0 H- f. D+ b+ ?6 }5.39.217.76The 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。: a. Q" p* u* F7 o
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.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。2 I: J/ i" p5 i: L' o# [
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. tvb now,tvbnow,bttvb& Z! F% Z, J2 I. \& R1 i& f" ^
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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。 o1 L, u: x# ]0 ^
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1 C0 l* e) X1 _- ^0 @( |5.39.217.76TVBNOW 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。" D& h5 K9 S: p, H; p# ?" i- l
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