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 ' N' W, ]2 ]' M( u4 W7 g3 k ) Y2 F7 | X" E, B. i9 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。If you are not a Physics person, read on and learn a fact of physics. ( g9 c7 O: e; [4 n2 Y# \
AMAZING! 公仔箱論壇$ ^5 d+ h& [$ D1 ]: r8 ^( G 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 q/ I. ]' e/ ]% }* q& r
Even after you see it, it is still hard to believe!5.39.217.77:8898 D' C5 l! f% q% T/ { [attach]1486499[/attach]公仔箱論壇0 K" {/ e3 E" [9 W) t$ 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。+ [/ }: S, S) I* T+ F
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! & ~. |7 q C) ] e
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ! \3 G2 H7 d) }/ V. n2 q5.39.217.77:8898It is located in the city of Magdeburg, near Berlin. e% |1 |! W: \7 ^/ B, q " v8 z$ c8 H' K$ _6 v7 u公仔箱論壇The photo was taken on the day of inauguration.- J6 r: {/ j8 E$ k
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.+ `* |0 v, z, h4 J
5.39.217.77:8898, f0 \, j- {9 a% e; E/ j
Question: . {0 j' s+ v/ a" O5 H) j/ ntvb now,tvbnow,bttvb3 F# O$ M( f$ i3 D* u% \9 q4 k# r
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic," W& s- i9 h0 ?4 S
Or just the weight of the water? 6 ]% W5 d) I+ X i) T) F$ L! ~/ f8 o! _" f8 o8 }" g! r
Answer: - l9 K, c/ B3 G4 F3 { \. F7 C& K6 E* I, i( ]" ^It only needs to be designed to withstand 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。6 V( v w- ] x+ c! N
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded2 H& W; v5 t5 i [+ y4 G+ b 1 o5 C2 @+ |* |* p* ]公仔箱論壇 $ b" ]" Z! |' n6 g9 O) A公仔箱論壇The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb6 F8 L$ \% A* d& i+ n% N$ 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.5.39.217.77:88989 P+ B) ?; ^/ B8 h1 @6 o
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. ; b8 A. D1 |/ `' b; o$ Wtvb now,tvbnow,bttvb( V1 G- W2 `, S
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. 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。5 b3 D% [" k" r+ B
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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。$ _$ l" q# G* N" K* H [attach]1486500[/attach] : R. G2 {$ E7 L! I d9 b5.39.217.77:8898[attach]1486501[/attach] / ?9 C& G6 c1 w1 s$ k' J5.39.217.77:8898[attach]1486502[/attach]3 h3 Z! P5 z4 g' h [attach]1486503[/attach] 8 Z9 o) Q! \, P0 p6 eTVBNOW 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] 5 ]/ O4 P- E |$ L& C2 J[attach]1486505[/attach] + i( x4 V. G- e) k+ G公仔箱論壇 1 @6 h. x6 o$ N# q. R公仔箱論壇作者: busyfun 時間: 2011-10-4 11:33 AM
tvb now,tvbnow,bttvb1 ^: c! d# q- C! `+ ^