本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 ' A' a# s. O# Y1 l1 n
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。0 s9 d. v" @- u7 h
If you are not a Physics person, read on and learn a fact of physics.
; T/ N( |( m/ L1 R公仔箱論壇AMAZING!
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- A$ s: g" Q6 I! R3 }- @5 T# wtvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!5.39.217.776 @3 M) m9 [2 a! ~& l6 o* o3 z
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb# q0 j/ O2 u+ G9 A2 D) v& \- B1 X
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
/ B3 E8 U/ ~$ Y4 ~7 ]公仔箱論壇It is located in the city of Magdeburg, near Berlin.0 x% M6 G! O) J1 Q
: d) d9 X/ D5 j8 H! Z( U公仔箱論壇The photo was taken on the day of inauguration./ f7 P/ }5 W1 r8 X* o
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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. K( x' L" i5 j- b Y7 [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。Question:tvb now,tvbnow,bttvb- t9 m0 p, G% L% |: ]8 Z1 @
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,3 W5 N5 B. l! A7 J
Or just the weight of the water? 公仔箱論壇6 q R1 w, m& h/ i) H
" F6 g, _+ p% d( K9 a* b+ qAnswer:- n# {$ p/ o" [$ ^3 z
, r& q4 i1 r9 T o ]$ Y5 \ X. E. AIt only needs to be designed to withstand the weight of the water!
' c) \9 F: t2 c+ d" CWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded
3 K m& s' Z: }& x/ {7 f; 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。tvb now,tvbnow,bttvb% {% C! h' r- \+ l: d* [( o, ~! ?1 i% n
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The Incredible Magdeburg Water Bridge in Germany' a/ i4 a9 K! V3 ]
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.
/ N4 J) L q- V" U" L3 htvb now,tvbnow,bttvbThe 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. 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。1 `. z# E9 ~: s Y: e2 g, \: n
" C4 g4 c$ v7 Z& S+ {; MConstruction 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. 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。# w) A0 y( c+ c
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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。- e9 J( ?. Z$ a& Z! m v
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