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 ) D- @. ~4 N5 ?公仔箱論壇( M0 Z2 _, h0 Z5 n
If you are not a Physics person, read on and learn a fact of physics. 5.39.217.77:88980 E- D2 E( |$ v. ?4 e9 f
AMAZING! tvb now,tvbnow,bttvb- I# M$ U% r, U; O# } M! V 3 V9 }+ v, z# ~3 z
Even after you see it, it is still hard to believe! ( Z- j4 B- v( 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。[attach]1486499[/attach]公仔箱論壇4 p$ ^" G3 J4 t9 E4 C; d2 @
7 P& s% j& j& e- v! `+ l- ytvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 1 |/ _ L, c9 V4 O/ J8 ~6 V公仔箱論壇This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5 p- N( q" k- I+ a! h
It is located in the city of Magdeburg, near Berlin.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。* V) x" E+ a% Q3 X0 S
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。- x/ s8 D/ q% k) ^6 V0 F
The photo was taken on the day of inauguration. - @/ Z0 I0 q- S+ I6 n4 vTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.6 a: z- t: a* m& g; r/ g
5.39.217.77:8898# w2 ~3 ~" F$ S! j$ t5 {8 P
Question:- q Z$ W4 e8 w% b- a
7 N: o. v9 K; f) ltvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic, + U4 o4 [; w7 WOr just the weight of the water? 公仔箱論壇5 M& d* z$ U2 E6 F; x7 ~6 ~* _
6 } { J' L7 m5.39.217.77:8898It only needs to be designed to withstand the weight of the water! & n# F: l! X) Q( O! qWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded P) C5 v$ T: G# ~1 v" _0 e7 a: f5.39.217.77:8898 - E4 {; r9 K8 w, Z# E L+ D; R9 X5 S; v* b9 W+ d The Incredible Magdeburg Water Bridge in GermanyTVBNOW 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 `) ~$ U& C0 O6 Y! h
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.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。# s0 F+ N N0 }- O4 W/ r' Z
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+ ?. c* u G: \/ }
5.39.217.77:8898, k2 ~3 k8 ~, q. f* p
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. 公仔箱論壇% H4 f$ ~, _# ^: U8 C) c' A5 i