標題: EVER SEEN A RIVER OVER A RIVER? [打印本頁] 作者: lilitan008 時間: 2011-10-2 10:09 PM 標題: EVER SEEN A RIVER OVER A RIVER?
本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 % x8 [; P' I) c- h
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If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇2 Q$ a" n$ |2 V% H, S0 s4 }
AMAZING! 9 G& Y0 y: f" \! b9 f# Y' qTVBNOW 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 W. n p: ]- H' e
Even after you see it, it is still hard to believe! 6 k+ Q( d# G4 U( t2 S4 U$ D[attach]1486499[/attach]公仔箱論壇! n1 j; i9 i3 H' g/ i) M$ M
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! + L9 J! r- X5 X$ D4 P# d% C& Y公仔箱論壇This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5 t/ p2 e6 C- c. J2 W0 a5.39.217.77:8898It is located in the city of Magdeburg, near Berlin. " \) C" ?5 o0 G! ^" N3 oTVBNOW 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。tvb now,tvbnow,bttvb- R( m/ H S" W9 E
The photo was taken on the day of inauguration. ' e8 W7 D6 r2 S3 j! d, @- v, }To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. ' u: d9 f/ _ j% g4 u# X; L% |5.39.217.77:8898 - R: V: E5 U% C' i: Rtvb now,tvbnow,bttvbQuestion: # B1 C! ~, @: h, g6 E* u! wTVBNOW 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 l" B/ u: p0 Htvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,' |7 [ p* N! }) d
Or just the weight of the water? : H5 @- e+ k. j, c$ l
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Answer: 7 T1 C5 T* E0 C' ?1 _) f' Y* Q公仔箱論壇 Z* z4 H9 C/ Y4 p" h, |5.39.217.77:8898It only needs to be designed to withstand the weight of the water! 5.39.217.77:8898( m+ D# h* P! P. n
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedtvb now,tvbnow,bttvb5 G- I! Q4 F/ Q. d! [1 G 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。3 W& E( q0 u C3 V7 |+ y( f
- I# _& C& Z UThe Incredible Magdeburg Water Bridge in Germany - C0 ?5 ?- N' G& ?0 B& N7 S公仔箱論壇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.公仔箱論壇4 ]2 I9 [2 \& l! r5 m) v
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. 1 B; o, C0 n! w% o7 p; m7 }公仔箱論壇 ) \3 Q8 h* @! S' @9 C. s' `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. 2 m) K g" q; c3 ?4 |$ w9 Ltvb now,tvbnow,bttvbTVBNOW 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。: G2 D* r6 Q$ D' ]* j3 n" m
