標題: EVER SEEN A RIVER OVER A RIVER? [打印本頁] 作者: lilitan008 時間: 2011-10-2 10:09 PM 標題: EVER SEEN A RIVER OVER A RIVER?
本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 tvb now,tvbnow,bttvb$ K; s, z Y1 t
! [4 S6 S& q1 ^If you are not a Physics person, read on and learn a fact of physics. 8 j" K& E# }) w8 C$ g3 ^+ r( R) F
AMAZING! , D; a2 A$ [) y4 r$ b9 @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。 2 B* S* v$ |2 Q0 vEven after you see it, it is still hard to believe! " Y; g* o+ c- Z% V) y/ ][attach]1486499[/attach]3 A1 r. n5 R$ s1 {% q W
, `5 o( `# d2 E1 n5 k e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! tvb now,tvbnow,bttvb7 F E6 j- G; `& h# }% w
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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& S/ C, R8 @7 [, h. t+ K
It is located in the city of Magdeburg, near Berlin. 6 |6 C, ?: V. S. K: b公仔箱論壇4 H+ \: D T" |
The photo was taken on the day of inauguration.7 F3 O+ {) [6 v3 @1 m$ a
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. 2 p$ g `9 N" S$ V5.39.217.77:8898TVBNOW 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。; r! {7 I; z/ X7 _
Question:* _! j* s' Q* Y
; J b5 I: D6 K8 V. H3 {: q6 YDid that bridge have to be designed to withstand the additional weight of ship and barge traffic, 4 u& K0 ]! {( {, z公仔箱論壇Or just the weight of the water? 4 l' W4 b1 {" r Y/ C" n
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Answer: 5 \; U" Z! L8 Z8 r. b- J* iTVBNOW 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。3 _: C6 N$ L* P- D$ B
It only needs to be designed to withstand the weight of the water! ! T, u) B% Z9 M- ^4 a& b& d5.39.217.77:8898Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.77:8898( W7 N: y+ C5 q/ W& @4 x! w) A8 p 3 H7 }& X( p utvb now,tvbnow,bttvb; h' a5 u2 s# h5 S The Incredible Magdeburg Water Bridge in Germany 7 g& a1 F9 F& [$ ~5 d/ htvb 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.9 @/ M' Q8 |5 @8 M! D( n* 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. 5.39.217.77:8898. a$ M/ D) x0 g. E
& G" Y" q0 @+ `% z* y. ~2 {2 W" z- j) R5.39.217.77:8898Construction 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. 5.39.217.77:8898# I9 o$ r( L" z) |* g- H, i" d
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