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,bttvb9 `; p& H8 ?8 e' |
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。% b1 `0 l( M7 x4 t3 }, V& A1 m
If you are not a Physics person, read on and learn a fact of physics. ; X9 j' a9 ?0 @" yTVBNOW 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。AMAZING! 5.39.217.77:88982 ?# p1 u7 f2 ~2 r8 N$ p' O7 O* g9 r : z5 Z3 Q' T! M+ S4 |; C8 L% MEven after you see it, it is still hard to believe! 7 E6 h3 ]! `) K- V/ p[attach]1486499[/attach]5.39.217.77:8898$ U7 L+ f, T$ p# R+ v1 F
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! ' c! e3 x& B7 I, N9 n1 C1 @tvb now,tvbnow,bttvbThis 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,bttvb9 g% m" x6 X; O7 D+ x7 c
It is located in the city of Magdeburg, near Berlin./ w- R+ P: L* {. v( Q% |
, V% N. Y7 L8 j4 Ttvb now,tvbnow,bttvbThe photo was taken on the day of inauguration. 0 i! M' g0 k3 w# l7 a3 y$ lTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. + U0 F: c6 j% Z& O- w' a3 }8 \$ D2 b5.39.217.77:8898% s' v- V/ M6 [0 J0 l" ~: V
Question: ) G8 P& ?. X! m# ]! J公仔箱論壇 7 U3 L+ d1 L/ x4 ~$ {% sDid that bridge have to be designed to withstand the additional weight of ship and barge traffic, $ C! i7 w: V7 M/ i公仔箱論壇Or just the weight of the water? 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。% M" i" t1 s& m- j9 |# A
8 k: @* `+ J0 `; }3 z! {tvb now,tvbnow,bttvbAnswer: 3 y; `5 N& H; p' Z ' I5 K* U% D) ?: _It only needs to be designed to withstand the weight of the water! 7 z! ?3 k9 E5 f9 P& A2 e9 S9 P1 y0 LWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded+ p0 r2 H- a! a% q0 _ 5.39.217.77:8898: }2 X( L+ G% @
4 s* x. a- n7 w- K8 P t 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。5 b! ~9 Y+ |* q& P% U+ K
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。$ Y9 e n# ?1 b( C) ?1 B: w
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. ; i5 Y2 D: y6 g. [# y+ m( P5.39.217.77:8898公仔箱論壇; c" K4 h5 B* J* p @: }+ f
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. ( |! k. [! c! B5.39.217.77:88985.39.217.77:8898' G0 A0 l0 }. P) z0 Q" {/ y
0 v& d, ^) |; E; d# a$ O6 @; R [attach]1486500[/attach] ' I: R9 z( n- n6 d[attach]1486501[/attach]% y. x8 r2 ?$ s A1 } [attach]1486502[/attach] 1 L6 B1 R7 ^1 }- Q6 t6 @- b& b9 t公仔箱論壇[attach]1486503[/attach]7 M( I' Q/ ~* x7 c5 n/ ?6 M [attach]1486504[/attach]5.39.217.77:88988 H9 C( k: t5 h* c [attach]1486505[/attach]公仔箱論壇5 i3 V- [& h4 }4 e) d, x1 W$ h
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。" r8 R$ L) ]# l 作者: busyfun 時間: 2011-10-4 11:33 AM
