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 9 W9 ?$ c' k0 g* W. T# F, G& o. ? . S |4 k" |+ @9 ]6 qIf you are not a Physics person, read on and learn a fact of physics. 5.39.217.77:88983 O% j/ s% S* F) x( L
AMAZING! % C# g8 b m' c h$ L! M) X. c 5.39.217.77:8898. V% ?4 K% s; Y( |
Even after you see it, it is still hard to believe! - c2 _3 K. @- q7 b, ^$ ^, stvb now,tvbnow,bttvb[attach]1486499[/attach]4 J7 {2 [0 j' ]( x" f! D
9 P8 O& x% |5 [5 `3 B9 qTVBNOW 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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 2 f$ z) V# @% t. Q! M0 v
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇3 @+ E, Q% {9 M$ a% x* S
It is located in the city of Magdeburg, near Berlin. / a# o. I- S: Ntvb now,tvbnow,bttvb公仔箱論壇8 E, l/ B( s# f7 v& [: e4 D
The photo was taken on the day of inauguration.5.39.217.77:8898% F6 X+ n: L+ \5 T# @) P& Q
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. ; _; {* X4 |: s% {: W1 T1 h+ \' F5.39.217.77:8898tvb now,tvbnow,bttvb/ h4 h3 K7 D0 G! M6 E4 T$ J4 Q% |
Question: ; y4 }" q* u$ U" ltvb now,tvbnow,bttvb. b" j$ y. t7 d; n- K e( w
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.77:8898, R' Z- v* W2 M- u9 ~
Or just the weight of the water? # j! y, h2 _1 o; c, ~* @ 3 Y; m' g1 Z; k# W3 p$ SAnswer:tvb now,tvbnow,bttvb3 J0 M: M) H; a: q
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It only needs to be designed to withstand the weight of the water! ( A" f5 ?: u8 A4 {# ^2 pWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded 4 d w; @+ }6 U0 {, z% |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。公仔箱論壇7 d# m0 H5 {. f
/ B5 v+ o R8 R) w. B' |1 gtvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb" m6 ?( d d' g! U
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.tvb now,tvbnow,bttvb0 n# y1 D" h/ X& R
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. 公仔箱論壇! p: ~0 q5 D- b/ t% Q! H% O, H; Z
, C7 E$ Q$ p3 x7 n% _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. # i- u0 r* q5 ~5 Y E7 ITVBNOW 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。tvb now,tvbnow,bttvb, r) Y& W$ X3 l5 A5 @; E) @6 Z# t
tvb now,tvbnow,bttvb+ u8 I; c1 p7 |, C; y [attach]1486500[/attach]tvb now,tvbnow,bttvb+ Z( u" j7 H9 s7 v [attach]1486501[/attach] 5 q" C$ A- q1 {+ E[attach]1486502[/attach] + ~# M" g2 o- \6 H5 }[attach]1486503[/attach] 0 ^9 u5 W4 B$ e- nTVBNOW 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]1486504[/attach] 0 [5 G$ x8 ?7 |. V! L$ u; d3 N( {公仔箱論壇[attach]1486505[/attach] $ G! n* [1 o% V' v' [# F7 l5 A; R' etvb now,tvbnow,bttvb - ]+ H4 S* ~( v) K' X# R* L9 f作者: busyfun 時間: 2011-10-4 11:33 AM
