本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 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。$ ]' L! `9 |- I. L) H& i
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。6 J% X% K! h. O
If you are not a Physics person, read on and learn a fact of physics.
* b! K/ k; @! S. j1 d& fTVBNOW 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。AMAZING!
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Even after you see it, it is still hard to believe!
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
# M' _! p6 G) G- g: A* ^This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
5 M5 ?2 T) z" ptvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.
6 \+ {, P' z1 b4 D- 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。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) }8 @1 V; G3 J* l
The photo was taken on the day of inauguration.6 V: M% q6 R! W1 `5 m
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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4 z) z5 z: V+ O# y0 Z4 pQuestion:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb2 S- V; g" F8 f/ r0 a$ O1 z/ ~
Or just the weight of the water?
" t% B( i( g: 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。- @ @6 P O# w; A- Z
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It only needs to be designed to withstand the weight of the water! ; Y" g7 c7 V @
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# Q5 G4 L" n5 U( L$ t" D
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$ K2 D+ X4 o" k% l) h! }3 X公仔箱論壇The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb3 d. n+ s$ z) e9 m6 M
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.
* U# |( A6 z2 A1 p* ` Y+ c& CThe 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/ Q X( c+ i: v! G
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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. ( H# k) P% c% h% H8 b4 b' i
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, p3 {; d8 s, Z- H2 D; 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。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。$ @8 X9 D" j7 o& b" ?
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: ~- F8 N" T- k/ R, O- P* XTVBNOW 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 z3 _( W2 l; {# l
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發表於 2011-10-2 10:09 PM
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