% p, o! H {3 m$ N3 hIf you are not a Physics person, read on and learn a fact of physics. $ `8 N, g3 t% D' C/ U9 etvb now,tvbnow,bttvbAMAZING! & [. o8 n( X4 A! p( j2 ?% M- { % c* M, L+ t7 C9 H6 [
Even after you see it, it is still hard to believe! / q2 I, m6 d9 ~& }$ j公仔箱論壇[attach]1486499[/attach] ' X5 A8 [2 q+ A7 P& V9 Btvb now,tvbnow,bttvb ) N: [* `- V# A0 i5.39.217.77:8898Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb4 m# g4 o# b0 \; ]2 D0 Z2 b5 w3 Z
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. tvb now,tvbnow,bttvb. G7 R2 Z$ l2 ?
It is located in the city of Magdeburg, near Berlin. / Y I# P1 Q; A7 A7 U& E/ ^ |公仔箱論壇5.39.217.77:8898+ l h% v9 d6 N2 r* Q$ m; d3 u P
The photo was taken on the day of inauguration. 1 o9 \6 l1 u) B, FTo 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。2 d0 i( S! x7 l: C+ J
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Question: % o4 H- ` I' ]8 R) p' Dtvb now,tvbnow,bttvb公仔箱論壇0 b! w+ @6 x. I' d y5 B
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇" ~; `& J. E8 Q2 ~
Or just the weight of the water? 5 t$ D, c n% ?$ g% \8 p4 ]5 HTVBNOW 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1 f; }# S; n1 a" n% u# p
Answer: 1 b* P: y4 z& Z- a* H4 { 9 `. q& a, ~% B6 g& _" X' ?公仔箱論壇It only needs to be designed to withstand the weight of the water! # M/ @2 {! o) o$ y- K6 X1 \' m公仔箱論壇Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedTVBNOW 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。& `& A* G$ C" w6 z6 J+ N$ | 公仔箱論壇+ U# ?7 h, R+ p1 a( d6 ?
! [3 Z) h( K* O2 l3 r' ?; S! k6 e The Incredible Magdeburg Water Bridge in Germany ( E* K* \' p- r3 N# j8 oThe 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.% h3 l+ U$ G. Y( ?/ K* Q
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. 9 T. n' z4 c( v! U& ltvb now,tvbnow,bttvb# C/ m1 u7 E( o3 D0 y
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. 5.39.217.77:88980 i3 ?+ n8 n9 I* q, N/ T2 x
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tvb now,tvbnow,bttvb3 x1 w! U" n! C) K0 f8 I [attach]1486500[/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。7 {3 z2 @. x$ E! q [attach]1486501[/attach]3 k- H) M0 U8 d; D7 m% G; q, `7 k [attach]1486502[/attach] 8 W( B% C- J" T[attach]1486503[/attach] " f' X4 g, W3 N/ m0 T! Q[attach]1486504[/attach]/ A& o. O$ I1 u! g i2 t [attach]1486505[/attach]公仔箱論壇; N3 U2 \1 K2 o7 |
& V: N ], G% i& S8 G6 f, ^; H公仔箱論壇作者: busyfun 時間: 2011-10-4 11:33 AM
