本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 www2.tvboxnow.com/ ~7 s& ^7 H$ f2 X4 L, r8 |. B1 X
" A+ p, J4 H; I( e$ L公仔箱論壇If you are not a Physics person, read on and learn a fact of physics. 3 ?* x9 B+ M: m5 |- k& p' z" [
AMAZING! ' a% u- {& U4 _$ {: ^- G
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Even after you see it, it is still hard to believe!
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( Y6 x# d4 f9 O$ x, l9 O! n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! / v; j8 ?. \, t6 m. m. P9 K: ~
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
# \" \% t6 W! P6 O6 L4 NIt is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
2 M X$ F+ ]7 M9 E5 J- D. v l公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb( S2 f/ U5 M8 s, D/ {. e/ O% L
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Question:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb; _2 o: O f1 n2 C/ s, c
Or just the weight of the water?
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Answer:tvb now,tvbnow,bttvb; u4 q& {. L0 n
$ ~) E- [6 A4 M6 J1 z1 e dIt only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb" ?! m2 P- C9 K8 ?; _+ q
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
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, {# M6 P% j2 ^8 t; 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。The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb/ B, @& f+ s) n0 }1 n7 ~
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.
0 q6 D4 R6 c' JTVBNOW 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。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. tvb now,tvbnow,bttvb, t( N! A1 ?) g& T8 J- L
+ G8 q* U5 p" h1 h" O5 Utvb 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. ( z5 E6 o, N$ A' M! [
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% }, Z t6 N& F( @/ |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。www2.tvboxnow.com# P. C( s/ U3 C; M, R
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。( i4 |! T# w* \, F7 V: Y( H
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