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 ! o: V$ m; n8 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。* v. a6 d3 }5 W2 ~( |
If you are not a Physics person, read on and learn a fact of physics. . [ X% B: M; G4 C0 R$ O7 j8 p
AMAZING! 0 w# ]/ _" P2 M2 T' v& a5.39.217.77:88984 S4 E3 C+ [* k7 J& Q1 O; u4 ~+ m
Even after you see it, it is still hard to believe!5.39.217.77:8898, y$ f u& d& @ [attach]1486499[/attach]tvb now,tvbnow,bttvb' {1 ]. T2 }; C$ V- ]
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 6 S( N4 N) S' V
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇9 s0 x$ M% ^4 d' R; Z% D
It is located in the city of Magdeburg, near Berlin. $ q7 s8 J8 |) w" I5.39.217.77:8898, }0 J5 y+ _) J
The photo was taken on the day of inauguration.5.39.217.77:8898$ i* a; h( Q- ?8 h, b# h
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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。1 l, `& K6 W# m$ X8 W% j& {' Z
$ V* E$ o: s+ m7 aQuestion:( U! _& T: j: M% M$ q, ?# P
; N* j6 Q" ] E6 J& y7 X; ~公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, & [1 ^0 x& }+ J- U& b" X/ Htvb now,tvbnow,bttvbOr just the weight of the water? + V" u) p* Y) T/ s" A! O公仔箱論壇tvb now,tvbnow,bttvb6 ] n8 V" e$ C: y/ a" Q; x
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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。7 A' Q. k4 k' {3 p
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 * J$ B. A! t( i( Qtvb now,tvbnow,bttvb , B& R" P. e1 B2 T5.39.217.77:8898 $ R/ O: W x9 x6 `$ O. Q/ | a) JThe Incredible Magdeburg Water Bridge in Germany - I0 J; g! c% g& NThe 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. ! U) r4 m7 N7 p* e6 T. c公仔箱論壇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. ; V" m7 ?3 K% x' q5.39.217.77:8898tvb now,tvbnow,bttvb% {7 Q, y& M. x! J; K
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. 公仔箱論壇0 S. G: v& _% M& o& J
* y- O$ k- M* o4 |& y 9 m4 Y# w, k9 i" ]$ s6 n# }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。[attach]1486500[/attach]/ _( t |. n- ?* Q& Q! w [attach]1486501[/attach] . I1 U6 o2 H" O# z m, D5.39.217.77:8898[attach]1486502[/attach]5.39.217.77:8898( F6 `& F0 ^3 l- s! c/ K [attach]1486503[/attach] : W! q4 s1 ]6 W+ j$ H5.39.217.77:8898[attach]1486504[/attach] ; h: K' \0 _/ l3 \- @[attach]1486505[/attach]5 z, h) j$ N/ Y( Q. T2 `
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