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 ; Y" n' ]5 K: E. i+ D* ]6 ]tvb now,tvbnow,bttvb . P4 L% o; T O7 L2 W& \5.39.217.77:8898If you are not a Physics person, read on and learn a fact of physics. n( m9 |" n- B' h. y
AMAZING! 6 I& |: L4 [3 l9 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。 a& Z2 b) _1 t. B" _/ ]
Even after you see it, it is still hard to believe!tvb now,tvbnow,bttvb8 {# f4 z7 R6 X& ^2 F- s f% M [attach]1486499[/attach]公仔箱論壇5 W9 i! P. A) Z: _' l! 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。* w* }$ W, l$ k; X% S. y/ |) m* u
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇7 U8 G5 Q0 `# y- t! c$ {
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ' T5 w: W6 \+ |0 X, f6 ktvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.5.39.217.77:8898/ ?6 o- h3 `! o
9 |/ ~) p( Y x7 j6 A5.39.217.77:8898The photo was taken on the day of inauguration.公仔箱論壇/ r; I8 p7 C( v$ b
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.- m1 Q) D6 x' J0 o: j& c
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。3 \& p( x9 u2 V2 }, d
Question: ) v9 L9 K# p* Y: c, ]公仔箱論壇5.39.217.77:8898# A! k' L; q9 S0 B) v
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb2 Z8 d" o8 l- f9 ~2 Y ]8 W. e
Or just the weight of the water? tvb now,tvbnow,bttvb0 h: a) G! v5 p4 l, J9 i; ?
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。9 L' Y! A$ @: t1 u0 c6 x: \: C
Answer: 0 J2 V! Y9 |% c0 Q: I$ t! ~9 JTVBNOW 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。' u, B( d( {+ r1 V3 W, `
It only needs to be designed to withstand the weight of the water! 公仔箱論壇# o: Y( E* `+ ^3 l+ _% D
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公仔箱論壇4 I$ F( {: r# F , l+ F; }! |' \
K$ E' R$ W, P4 `! F9 l* ~# T% eThe Incredible Magdeburg Water Bridge in Germany& E! P0 g1 t8 T2 _% c
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. 7 V2 D K# M' ^+ V; w5.39.217.77:8898The 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. B% A8 i: h, A5.39.217.77:8898( n* O9 u3 V* c3 Q* [0 e# C! }
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. 5.39.217.77:8898% Z. {/ ~( _8 { L
, `0 R# m- @- B3 c) B 0 _& a' F) F+ x% p: W4 o [[attach]1486500[/attach] + P9 y6 [9 V+ [) B) f, m1 J[attach]1486501[/attach]5.39.217.77:8898& i6 C( J1 ?% W [attach]1486502[/attach]" p8 S, S: f- O; U$ @5 G4 n [attach]1486503[/attach]tvb now,tvbnow,bttvb+ C/ i: j! S% g6 k- K8 V [attach]1486504[/attach] : j# \. f" @, d4 N公仔箱論壇[attach]1486505[/attach] # \. U( k1 t; |8 _2 U% z2 [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。+ n3 t, E9 Q8 o6 m 作者: busyfun 時間: 2011-10-4 11:33 AM
