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 |7 a2 D+ H$ W0 q公仔箱論壇 " i/ {* y _4 ]- o7 {6 G6 ctvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics. 5 \; O: {# D8 |5 J* tAMAZING! ! ^, U: I+ j) K9 ^7 G5.39.217.77:8898 6 w0 d% y& ^8 r4 M% s& ]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。Even after you see it, it is still hard to believe!公仔箱論壇! {# ^' Y1 S! E& B, t [attach]1486499[/attach] - E4 `0 A# c- u9 Q 9 V0 T) M) [ ]+ I8 @" `Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5 Q6 p3 v* U, f8 E5.39.217.77:8898This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ) P. y0 m5 n& f: N6 V! V- i' h
It is located in the city of Magdeburg, near Berlin. 8 }# X1 N7 F4 G: K9 x' T4 Y5.39.217.77:8898 + G/ X$ w ]4 c2 |2 t9 E/ fTVBNOW 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 photo was taken on the day of inauguration.1 X2 W7 A# s, Z
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. ( G' w c: w X) |" [9 N+ p) T / S/ y s. k/ I9 jQuestion: 1 o1 L7 x0 U: e* Z0 u* Jtvb now,tvbnow,bttvb . p. u e. e! t) C& \tvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic, + s6 H2 F& d' G7 K& j6 _Or just the weight of the water? 5.39.217.77:8898" }: k: M/ T9 B2 {8 U+ d
% |6 a* z2 p! \& Wtvb now,tvbnow,bttvbAnswer: . q" f1 ~) R( I4 R9 x" W. j6 Q3 L& j9 T) U1 F2 C$ U. u h& q
It only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb% B# v0 k/ Q: e2 h4 ^1 y- j
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 ( X' ^5 _9 Y9 i# I, B& K; A. xTVBNOW 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。$ h0 f+ k. \( u( W. m
7 j" W6 y9 t1 rThe Incredible Magdeburg Water Bridge in Germany % W- r- K3 g* ^, f4 p4 m0 m" n% TTVBNOW 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 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.公仔箱論壇7 H2 j8 o; W& q8 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. 5.39.217.77:8898' {, t/ T/ v1 F
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, O5 X1 r. ]8 c4 j+ [
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. + ~0 Z, u) Z) r( {% o5 L4 r
n- M, M/ A% `% h2 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。5.39.217.77:8898. U9 K2 J7 F9 L9 E [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。+ d6 K- _2 u+ Z$ Y [attach]1486501[/attach]公仔箱論壇' T1 i$ y0 {% N: O- @6 y [attach]1486502[/attach] 0 \$ D0 h7 i# i% p0 x[attach]1486503[/attach] + g" V) z& b" J9 o[attach]1486504[/attach]公仔箱論壇( O( t$ i% f z$ Z- C [attach]1486505[/attach] ) y& l# Z5 N6 {0 p! s- z' }" W5 ?* }# B 作者: busyfun 時間: 2011-10-4 11:33 AM
5.39.217.77:88988 j! Z: a( @% L9 X& A- M0 Q