本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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2 t6 x) ^% G# ?- k. r, E$ L* K5.39.217.76If you are not a Physics person, read on and learn a fact of physics. 5.39.217.765 [6 l" {) m) U+ l. \5 F: u9 }$ a3 q
AMAZING!
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Even after you see it, it is still hard to believe!
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! |2 `( U: D% p6 Y: _# }. p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!
5 W7 }" ]% J. y" C& b B! M$ NThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。. Y7 W4 g' V Z( f) t6 f4 e
It is located in the city of Magdeburg, near Berlin.公仔箱論壇9 o1 C" [: i C* Z8 c4 V
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The photo was taken on the day of inauguration.0 Z. o* _, P: l0 `; P- \
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.4 j- \# Q8 V! ~ J
: A6 h4 O C# N4 ^Question:
% y1 R: Z" v- h' M9 uTVBNOW 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。, V7 `+ B% c1 k- F
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
& U8 S- _+ u2 O% ]/ {Or just the weight of the water?
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Answer: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。+ @$ t4 w n; t( s
" t+ u2 T* z0 [* R( ?. a. J3 nTVBNOW 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! ( f2 e: i; i# ]: M( S. T
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded公仔箱論壇) d# v, e, a' z6 K" T
2 {4 Z6 l( p$ k8 hTVBNOW 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。& e) b5 h3 [: A) T6 h% o( R
The Incredible Magdeburg Water Bridge in Germany$ g. i: ~4 U, e* q4 e3 R
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.5.39.217.766 M0 o$ Y' I$ [8 O7 Y) f. G
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. 公仔箱論壇9 u/ A ~7 e1 k9 R8 x' d
2 L" S3 d2 j1 E( B7 P) o9 Y9 A4 ]tvb 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。' q5 d7 H! U! W3 E- F1 p# j+ i2 Y
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。5 G% M' I a$ W" l9 b/ u
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