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 ( C T7 o+ P3 X1 S1 _3 \5.39.217.765.39.217.763 V/ J' d$ m6 ?- \/ t) A V7 p7 [
If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇8 Z+ D @% \3 v3 c
AMAZING! : g4 d# f3 }* z# N& R& r . w+ L/ E. p. C5 otvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!5.39.217.76/ G* v6 Y, z5 [. G8 X% h0 f [attach]1486499[/attach] $ G+ g Y5 E6 f5.39.217.76$ v$ g/ K+ E% q% x6 X9 R' h; i
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 0 N) i8 ]$ s/ N9 otvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 3 o7 p: }2 _4 a. Q8 Y8 p3 b7 ETVBNOW 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.公仔箱論壇! i; G& r) J3 L5 h
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The photo was taken on the day of inauguration.tvb now,tvbnow,bttvb/ c8 @% h8 |8 O
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇( y5 J# M% a( f i) d# R, E
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Question: 9 Y5 @5 v; D) {& J+ A; \ ( w! o( v1 c) f l: SDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,7 R4 G5 b$ T9 n& z/ l
Or just the weight of the water? ! d* n$ C" o4 g . j0 O" S8 D. c, W" c6 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。Answer:# {' y0 [% N; i. d1 O' r* w
2 L( E y0 x) h: [/ i: l公仔箱論壇It only needs to be designed to withstand the weight of the water! 7 x" b% l, _2 }公仔箱論壇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 9 d& d& g6 ?8 v) g( B; Ttvb now,tvbnow,bttvb6 j! e% [8 M- b1 Z0 {' p, E" L
5.39.217.76: W6 ^4 l m! e0 ? The Incredible Magdeburg Water Bridge in Germany公仔箱論壇7 [- ^+ V, ]( Q
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。: s$ a w4 l& Z% r6 ^( l- 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. , r6 j a5 S0 w4 ETVBNOW 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。5.39.217.76% ?4 c7 C5 r5 L+ k( x7 f
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. : ~& r5 C( W$ M4 a5 Y& Y5 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。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。, s$ }' k) F- @
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