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 5.39.217.77:8898) d* P3 A$ Z; T+ p: y. c+ Q% p
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If you are not a Physics person, read on and learn a fact of physics. 4 u8 T/ O, |% ~6 \# m+ \( v# K+ u- 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。AMAZING! 1 H1 \; c4 K& M: \' {5 J, N ! B; c0 E$ q& B( X& 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。Even after you see it, it is still hard to believe! % O+ p4 q& o+ Z% h2 S[attach]1486499[/attach]公仔箱論壇6 R1 B b! `9 `- ~
+ o9 F$ U- Y) P- T1 {Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! % B8 [) k8 J- D7 w+ P! M# k5.39.217.77:8898This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. * G# Z, U0 _4 c v% s- v* ]' B5.39.217.77:8898It is located in the city of Magdeburg, near Berlin.3 ?8 G9 S) l: k! d
?, J2 k4 N3 [0 l8 L1 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. , l& L; Z0 T4 f# h' o8 e9 QTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.77:8898* n* b6 S- n( T4 P7 M3 w
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Question: + B- n/ R) D; x " B2 k; C# k; w- N. v2 e( `2 I# M公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, : K0 E4 y$ x% b% U: {2 k9 X" oTVBNOW 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。Or just the weight of the water? 1 Y2 L" D* l7 p( M' X公仔箱論壇公仔箱論壇$ I6 Y3 p! {, @: w k
Answer:5.39.217.77:88984 O. l2 Z- M6 ], I0 U$ A! z9 Z5 i
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It only needs to be designed to withstand the weight of the water! # h* _. z o1 Q: G x5 d* { j5.39.217.77:8898Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded i& e1 C9 F4 E( U1 u$ Z; v; N9 ?tvb now,tvbnow,bttvb 3 T0 [/ w& W' V! ]5.39.217.77:8898# z) E& w8 t. _' `8 } The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb8 @4 B, ]8 y9 u% q8 i) b& T! |2 P
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.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。# `! Q! k9 i3 o7 A) q! k; C
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. 4 _! I3 w6 P: `, |5.39.217.77:88987 l* w2 x! Z6 d- c6 k1 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. * l8 w( k& i9 \/ h" f5 S
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