EVER SEEN A RIVER OVER A RIVER?
本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics. ( ?) K- [$ k S1 b
AMAZING! 5.39.217.76' ?" w1 I* M* q- r0 m/ u% X+ I$ O
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Even after you see it, it is still hard to believe!tvb now,tvbnow,bttvb/ F6 V4 U! f }5 ~; Q
* P" N" R/ V+ f. H) r4 zTVBNOW 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 s: y' q1 G# `0 R8 H7 k' | 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!
' c% \0 q x" a( d1 v8 `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. 公仔箱論壇% L. _2 n3 @% i9 K# a
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
9 l% `' x5 Z8 D3 y5.39.217.76To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
; {/ x. ^/ y( d7 f" W. ZTVBNOW 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。
7 q& P- N* F$ Y, |' fQuestion:
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$ W) y$ l% y- ^/ N* ZTVBNOW 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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
" O& d5 q4 n/ E7 U& F) gTVBNOW 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。Or just the weight of the water? U% ~: K8 o5 @! S
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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。! F1 k) P0 R- I1 @9 O* a
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It only needs to be designed to withstand the weight of the water! 5.39.217.76/ P/ i, ], x" T
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% M6 F: @2 e! Z, _
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/ P. [( ]& p/ A8 V! FThe Incredible Magdeburg Water Bridge in Germany
* e. g2 `' J2 ~1 z8 ]5.39.217.76The 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.# U/ I& _: ~/ {5 j$ r
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. 公仔箱論壇% a9 F% z$ K# F) _3 x- a
- r# G/ _5 \/ u7 f+ t, ?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. 4 ?% n! o# b* s5 d: H1 F/ R
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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( K( v [4 }* i( @( p
3 N2 m5 O% A2 h8 \8 c8 I+ o- q( rTVBNOW 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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: D6 B0 H' K J& {& UTVBNOW 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。tvb now,tvbnow,bttvb& C$ M8 ~$ e; h* `
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