EVER SEEN A RIVER OVER A RIVER?
本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 公仔箱論壇; [% o( n# C% B1 a# m( C
+ w* I' c" h2 o; e1 QIf you are not a Physics person, read on and learn a fact of physics.
1 Y2 B3 ^0 c- i5 `3 N3 V' nAMAZING! tvb now,tvbnow,bttvb2 V& @) ]# _' f* f0 C
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Even after you see it, it is still hard to believe!8 r2 ]3 {# N6 {7 n- E% s* S- R/ G6 k
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.76$ p' \1 O d S6 G4 M
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
: X p, w. g4 _* k8 h! ^$ J/ W2 f% 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 is located in the city of Magdeburg, near Berlin.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。6 g1 r c8 j# H# M
4 z) G$ n1 ?5 x* X0 F8 ^1 ]4 U/ {5.39.217.76The photo was taken on the day of inauguration./ W( K* c: c% k
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:tvb now,tvbnow,bttvb; @( f7 t# c1 T
# j J- k& U" v( cTVBNOW 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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,& h$ c v. f! G2 j. S4 I
Or just the weight of the water? 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 c( t- n7 F: u
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Answer:; M9 T/ x) W- `- h
+ r# c, E: p/ c L( s公仔箱論壇It only needs to be designed to withstand the weight of the water!
( G- K$ f6 v0 ^3 {" NWhy? 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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! N8 k+ Q9 N L8 |! @The Incredible Magdeburg Water Bridge in Germany
+ L# }/ B2 t/ Q9 [0 _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。/ G9 W x8 c* B, q" B1 H1 G9 u
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. 5.39.217.76! e: P) M$ k3 U& t9 B( V; W
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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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* l& H$ U2 M/ i3 \ e/ n, {' B9 fTVBNOW 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。
# t {0 C. v9 w. @$ U' }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。
* [, t2 X, I5 Z: r& J# T8 a5.39.217.76TVBNOW 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。4 i) ^; a9 U( K( V( w* b8 V
- W' c/ g4 q* o6 j6 ^/ Z7 |; O. KTVBNOW 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。& V, ^0 T$ L1 y7 d
# _8 |/ A# Z. 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。8 D! P: P3 }5 q$ H6 U
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