本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 5.39.217.769 {' x6 \0 C6 Y$ }5 E! B
公仔箱論壇/ J( G0 |1 L0 r9 Y
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。& _# _, C- b9 |+ n: r6 `+ P
AMAZING! 5 X) R$ `( m# |2 l" g% \
7 p( I( `! t1 P" g4 Rtvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!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。! e. B J$ j; w- ^4 q
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! " r X6 h% T2 S; v1 K0 Y$ x
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5.39.217.766 L* d- p+ Z: F- ^1 k+ H6 t2 s. D
It is located in the city of Magdeburg, near Berlin.
5 b3 V3 O# y7 `, |; C" f7 \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。, p( i# i x2 d+ [$ ]/ s. |" `( Q
The photo was taken on the day of inauguration., h2 C( x) U: F4 w
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
% R! B% T* I/ ]8 l& x% 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。Or just the weight of the water?
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8 y/ Q( C/ K% u D9 U m3 h# {( e# cAnswer:公仔箱論壇/ j. w& u0 w% o6 g# H, H" K
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。. C3 E( G, [, D8 _ q
It only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb/ X4 V0 d- {6 k2 {! k& |
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
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) T; b% E* ^/ ^# xThe Incredible Magdeburg Water Bridge in Germany
% T9 P- Z6 L: [3 mtvb 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.
* e" p& N3 C& u; Q5 ^% G公仔箱論壇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.
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! B: w3 j1 B% f% z: ~$ |5.39.217.76Construction 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 z0 _9 o& s g( L7 [* S; x公仔箱論壇
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5 l/ O8 M& B/ r3 w! C7 kTVBNOW 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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