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 5 g7 l4 D3 h7 ?- Z( y: P公仔箱論壇 3 m5 p0 P. B# L# @* c' fIf you are not a Physics person, read on and learn a fact of physics. 9 U+ v: ]% {' K7 R9 U( q
AMAZING! ; g5 q J, e1 Z, e. GTVBNOW 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! n$ `8 [/ J% {' n3 E9 k! j. f
Even after you see it, it is still hard to believe! 5 N5 ~: K2 k |3 F" H[attach]1486499[/attach] # `. A% L+ V8 n) r/ O3 h8 K公仔箱論壇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。" P( }6 k4 x0 x' o0 ~3 c
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.77:8898/ T* t! a- g( K
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. * \8 ^# Z: d8 q8 R3 T4 GIt is located in the city of Magdeburg, near Berlin. 4 F+ @' E$ \. b5 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。 ! [7 |( m/ V, u n' B$ f0 bThe photo was taken on the day of inauguration.1 V% N2 p; ]# U* k! k
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. 0 }, R: B: a- Q8 S2 W0 t w0 M# z! o: H9 |8 T; V6 B, _
Question: - v% O- ?6 s! H* `tvb now,tvbnow,bttvbtvb now,tvbnow,bttvb' {6 s1 }: B; c- F
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb6 Q1 C9 ~8 i: O% o
Or just the weight of the water? 3 H; v: H9 P8 r; @3 w5 B3 h公仔箱論壇7 m# k! W! f9 D7 A: r3 U
Answer:5.39.217.77:88988 j& y5 v0 ?0 \' U6 u/ x# E
公仔箱論壇) K# R: n |/ C
It only needs to be designed to withstand the weight of the water! ! W# e( z p, G- 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 5 [' q9 s. Q- s6 mtvb now,tvbnow,bttvb" n3 A* S+ A3 S
U. {8 Q+ T/ K. O. v The Incredible Magdeburg Water Bridge in Germany g% b- K( Q( R% r+ o- Q3 I8 n7 t
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. 1 M3 z. c3 T- _) r" w" n. A5.39.217.77:8898The 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. 4 U' l* n2 M- N. i 8 i& w# i# O: H: i2 u5 E; ~. ntvb now,tvbnow,bttvbConstruction 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. 8 l' e6 W! J# M
