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 2 H; H- E: A+ q! E公仔箱論壇公仔箱論壇& t8 Q" F/ [( y
If you are not a Physics person, read on and learn a fact of physics. 6 x% A& f' w) s* q$ Z gAMAZING! / Y) S6 b! A# ]" I0 M/ L 9 k' t; t2 ^+ q! z f- P
Even after you see it, it is still hard to believe! / q6 R) B: t9 x/ qtvb now,tvbnow,bttvb[attach]1486499[/attach] - T) Y9 T/ x+ l7 w6 n: O / L- t: ], A7 T- x% u2 P0 H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! , r7 Y! A" {# [! H% ^. C$ a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. 5.39.217.77:8898/ j: L! p/ H2 Z1 P, G
It is located in the city of Magdeburg, near Berlin. ' R" W9 S" [6 x$ W) |tvb now,tvbnow,bttvb7 ]5 ^7 a; C1 m0 C) q
The photo was taken on the day of inauguration. + O+ j% C- }! f: }+ A+ F公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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。* R1 G, S+ d9 E; t. o
8 N0 e$ k4 X: NQuestion:7 E& c# y# Y! h s% a6 p8 W
| j9 C! w/ H1 m6 ADid that bridge have to be designed to withstand the additional weight of ship and barge traffic, ( n5 e1 I( @5 x# Atvb now,tvbnow,bttvbOr just the weight of the water? / c/ N9 k" c' H( {, D' etvb now,tvbnow,bttvb ! ]. {; U% t: a2 y+ F' rtvb now,tvbnow,bttvbAnswer: 6 k" J7 s% n v$ J. c- atvb now,tvbnow,bttvb ) W0 V) A9 ~3 y) Gtvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water! 0 W3 z6 |/ P1 H B' J r
Why? 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 r# [" M: A8 g7 V公仔箱論壇 $ R4 P5 V! g9 i5 _1 H公仔箱論壇" E e; V! T: B2 z+ V& E, G The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb$ B/ L% H1 S, L% L9 z, C: N
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. a2 n z" ]" j* N: 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。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. # i4 Y1 C2 F" 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。公仔箱論壇+ E/ i* p% H0 V+ T
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. 7 E6 S$ L6 F5 F7 |* j* o, P5.39.217.77:8898 2 E' m7 l$ k7 G9 A0 R* {! \$ J# }tvb now,tvbnow,bttvb 2 X7 e' v' T% L/ M2 Z; C6 ntvb now,tvbnow,bttvb[attach]1486500[/attach]7 j+ H- A" O7 W [attach]1486501[/attach]公仔箱論壇- N* h2 d- ^9 C8 i( K' ` [attach]1486502[/attach]4 v( r% N! c- u" S( _2 X4 o [attach]1486503[/attach]tvb now,tvbnow,bttvb" o, r: Y. r1 l. H6 y/ ^) N [attach]1486504[/attach]- g3 }: P% {8 e7 ]4 z) c- M [attach]1486505[/attach]9 w; E3 L! O! A# x% p
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