本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
; F* l/ ^& t" ITVBNOW 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) @3 g' s; X
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。2 v7 s% I1 a( v) U- N/ e* Q1 B% k
AMAZING!
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! D/ `, Z2 ?5 I: ]* etvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!5.39.217.76$ }, f5 @. w% X; `% l8 f3 u2 c
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
5 ~9 v& F h. L4 ]This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇& n- Q0 o* a( ]4 Y6 e
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.5.39.217.76+ Z- G! L4 G- ]2 A# @' m
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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7 Z+ S# E% W9 K+ G5.39.217.76Question:0 v5 q# ^ P9 a4 h4 w* |% I
* S( \: K+ u. P9 i# v, b2 I% i* `公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,( g& B. R8 u, P* E4 c# E* o. x4 i
Or just the weight of the water? ' Q: z A( M7 c$ C$ M. F
4 t& w! I0 a5 @, c9 v5.39.217.76Answer:
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It only needs to be designed to withstand the weight of the water!
# v' m: t, G& N, q, g. `( U4 NTVBNOW 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。Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.76* n5 ?; {( K& u' |3 w2 M! b( |
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The Incredible Magdeburg Water Bridge in Germany4 m( `5 K7 G# o$ V/ _2 @5 X
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.
! c$ B* E% @" A1 |8 g+ H) fThe 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) B& \, C( D# r w
5 ~$ A9 D; _ G9 I6 f公仔箱論壇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.
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8 {$ ?8 A! ~$ f. F; e" d6 H$ W. h X; YTVBNOW 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。
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