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 tvb now,tvbnow,bttvb# h; ^, j( o- `+ `
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。& K. N7 |) ~- W# V
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。$ A5 D$ v, C6 Q8 J+ U0 l
AMAZING! / g: |& Q$ E& A& x/ u# O; wtvb now,tvbnow,bttvb C9 d" O$ {; W9 M2 `Even after you see it, it is still hard to believe!公仔箱論壇$ O/ m$ t; O% Q* L9 ? [attach]1486499[/attach]公仔箱論壇7 X6 e7 }6 k. U2 E: _9 v
5 ]) n( i/ O1 W* w; S5.39.217.77:8898Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb, P9 ~+ U) `* x* I) q
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. tvb now,tvbnow,bttvb+ s2 U- ~7 g# P g7 n
It is located in the city of Magdeburg, near Berlin.# R3 e! n |* |% B7 |8 r2 @
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The photo was taken on the day of inauguration.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。2 F) n: J- [+ T% j( e6 s% U+ v6 h# h' h
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇# q- a1 M' ?7 z& X
, X/ p$ R$ P% @# N. a Gtvb now,tvbnow,bttvbQuestion: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。- ?$ j! t$ z8 A) B# b2 e4 Q
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇 E6 }! ^' f; j& R/ m
Or just the weight of the water? 公仔箱論壇7 J7 Q, S9 S) r; [# [+ G+ u1 \
' ?: v1 p) _- D$ Y: c0 q ]& TAnswer: & m5 h: n/ ^' d) t0 a! Q1 f7 I6 k5.39.217.77:8898 6 I. S- N. Q' @" o. x, ^0 d+ VTVBNOW 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 only needs to be designed to withstand the weight of the water! 5.39.217.77:8898; ?/ g& w# `4 B( b8 M
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,bttvb, H0 d/ O! [8 L$ v$ _ ; g" c/ n F5 s2 g3 D 6 ^. d( g; f. u/ [" K( gThe Incredible Magdeburg Water Bridge in Germany + y, b F6 f" N7 Gtvb now,tvbnow,bttvbThe 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.$ T3 h# t! _" }- H7 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. / l9 r; y& L1 Z; d _5.39.217.77:88980 J% j( p& l0 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. 5.39.217.77:88981 ~7 _9 S6 }- L# k E$ E, g
