本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 公仔箱論壇( t; A0 M6 P! p5 r: [. r0 ?
U$ H% O) p4 G/ u公仔箱論壇If you are not a Physics person, read on and learn a fact of physics. 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。' F4 ^$ n: s7 k a
AMAZING!
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Even after you see it, it is still hard to believe!tvb now,tvbnow,bttvb* \* L- P2 v$ s
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, O( C. c2 B. q* ]' I8 f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!
( x: g Z5 K& n# t! M0 I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.
, @% A; Y* o) e; ?# Utvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.
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! A, r+ E- e! P7 l$ M公仔箱論壇The photo was taken on the day of inauguration.; L( \' o8 E5 J% }1 j/ R; F% r/ p
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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。% h! s: `6 l' a( w5 V/ c( _. v
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Question:公仔箱論壇$ N. O9 {/ c1 a! z3 |
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
0 }6 `8 V/ ]$ s3 C: |os.tvboxnow.comOr 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。8 U. d" a% ^& z+ {0 V ^9 ~/ Y
# O7 T# K' Z) M, {2 w$ dIt only needs to be designed to withstand the weight of the water!
) C/ H/ O9 L$ d5 o$ y/ ios.tvboxnow.comWhy? 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,bttvb( A6 Z9 p3 D* J# \ j
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The Incredible Magdeburg Water Bridge in Germany
' Q' K7 `& E. k6 _ [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.
4 {/ P4 o: s$ a2 l) H3 g. Wos.tvboxnow.comThe 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, V- r- h5 g' j9 o3 Y# u$ c0 c
) V6 y. ]) ^7 F- ]0 ]4 w3 IConstruction 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. 5 M9 E0 D7 S; U$ U3 P8 W
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1 m7 U+ t3 ?) k# I& K) 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。公仔箱論壇, E) L9 m1 X, d* g' i- q$ ~: P
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。! D2 c; `* `8 J! G3 A
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