本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 tvb now,tvbnow,bttvb$ A4 ]; q& \1 N8 }5 J0 f
$ ]! H) N# n" i( V8 M% |If you are not a Physics person, read on and learn a fact of physics.
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Even after you see it, it is still hard to believe!tvb now,tvbnow,bttvb2 Y5 m+ l' W9 g% y. y
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。+ }4 _; j t9 n1 z# g% y
! e8 p" \! H( u! M4 u; _tvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
; j E: d6 O, J o" h/ fThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. " a( R: p V" s- m
It is located in the city of Magdeburg, near Berlin.
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* R# i/ M& s4 J3 H4 DThe photo was taken on the day of inauguration.
" u* j# Q2 h% }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。To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
" P4 b7 Z5 P! X3 K+ G公仔箱論壇
- Q6 k4 j, O# F6 x Z0 IQuestion:tvb now,tvbnow,bttvb6 y, Y9 U+ Q( |3 V8 ]! d/ B& p
' i; U+ F# ]: hwww.tvboxnow.comDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,8 W$ S; {2 U- Y7 Z& Z) a8 @/ Q
Or just the weight of the water?
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Answer:公仔箱論壇1 i- j& p& X/ ], u
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It only needs to be designed to withstand the weight of the water!
- B* {3 u8 x3 kWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded
6 @5 H4 g: B I. S" BTVBNOW 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。公仔箱論壇! Q* n2 B/ j+ V! X0 W
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The Incredible Magdeburg Water Bridge in Germany
) Y7 T) h5 `- @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.
( z/ R: j" ]. L9 D* ^; SThe 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. e" J( F4 x& U2 Y* F
/ o" o L" K7 Z1 E& L6 N( dwww.tvboxnow.comConstruction 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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3 K2 p/ z- ^1 Z2 T, 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。
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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。5 _. j1 T5 H' Y8 H( Q4 |
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