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 X& l2 b3 @# h公仔箱論壇 " a) @2 P0 E4 k6 sIf you are not a Physics person, read on and learn a fact of physics. 5.39.217.77:8898% [: I# ?& X1 W( f9 m) [
AMAZING! tvb now,tvbnow,bttvb- g1 c' }# u& c' S) k2 A& Q " \8 o9 M8 o+ g4 B! IEven after you see it, it is still hard to believe! : ^- P( f/ g, C, d; L[attach]1486499[/attach]4 T, h9 ^$ p6 B* i6 l; v, s( c
! ~' ~+ d: d; e6 O5.39.217.77:8898Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5 Z- S# e/ D! _' e. e- JTVBNOW 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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. # k* o/ j, ?' A& i/ h; a8 o3 a G公仔箱論壇It is located in the city of Magdeburg, near Berlin.公仔箱論壇& b3 j( o( z- x, u$ n0 a' p
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The photo was taken on the day of inauguration. ) l0 a( N! w: _$ N( b公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. 7 C0 G" P$ ~! h1 p8 [6 W! ?tvb now,tvbnow,bttvb + ^1 @. m5 {+ s) l: D, Otvb now,tvbnow,bttvbQuestion:公仔箱論壇; w& R' c/ R" X [* ?: B
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇7 B' Q4 t5 ?' y0 n& K, u- c
Or just the weight of the water? ' z! ^ M: M- u' WTVBNOW 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。, B( |) d7 O. x
Answer: ; w: @2 Z3 `8 p( V! p6 L公仔箱論壇" P2 |2 I( o) X
It only needs to be designed to withstand the weight of the water! 4 J+ `8 Z# W$ X( M4 \. Y; xWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded公仔箱論壇7 u( x! @' a2 Q; N& t" I) E , l( s5 z$ H% o+ W( u; m
j$ W) k M0 D$ c. | The Incredible Magdeburg Water Bridge in Germany; i5 a' V; {; ^- L9 e- \
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. + M4 m6 d. b1 Q9 r3 l5 d! @, PTVBNOW 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。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" x. B/ U- B8 d4 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! m3 U1 z$ ? 3 z3 H1 j5 l# C0 D . |* Y$ B5 f( u; i5 O8 e( o7 l5 @8 P[attach]1486500[/attach]8 [; S1 V& |2 _, |, N( R0 Y [attach]1486501[/attach] & P: d: P, L. ?$ b+ m& A' @% Y/ vtvb now,tvbnow,bttvb[attach]1486502[/attach] " |3 G6 q+ W5 Y$ `1 w/ |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。[attach]1486503[/attach]/ v- I# i: x- d) ^1 L. w; y! J0 M [attach]1486504[/attach]公仔箱論壇/ o) `9 y& ]% ]+ G9 Q' L9 h/ ~ [attach]1486505[/attach]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。9 j1 V3 `9 K8 g$ O" C. t* H+ V
5.39.217.77:8898- W6 P$ G" Q' H" R5 } 作者: busyfun 時間: 2011-10-4 11:33 AM
