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 / a' A1 A* ]4 N: l / s) `/ a! o4 H8 Y. n: r1 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。If you are not a Physics person, read on and learn a fact of physics. 2 a% l/ L, m, M; A% [4 O8 qwww.tvboxnow.comAMAZING! 公仔箱論壇& k+ L3 g) Q4 J: S) z 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。' e/ ?3 ]: A4 L ?! t0 \
Even after you see it, it is still hard to believe!公仔箱論壇$ l T8 L5 y3 k, k, l+ l5 [# t [attach]1486499[/attach]www.tvboxnow.com! }! u& B* L& S
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 7 z/ m+ ~8 C( ?: F0 l5 b, C公仔箱論壇This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ) J9 w1 ?- h; Ctvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.www.tvboxnow.com7 O' O% r i' O1 u
7 ~1 P- o2 x& t, }The photo was taken on the day of inauguration.公仔箱論壇$ D. v- S1 [* H- C9 J
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. & p1 m( m* d' A: V( N- c. K& ~4 ?$ F 4 \4 w" [! o' AQuestion: 0 ?7 B+ c% O7 i" x 1 k, \ g7 @& Q' ^Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇( X! x4 |2 }: Z
Or just the weight of the water? & x% l2 ]' N* r# F* C! E0 u ) i6 m6 h0 h- `+ D# u4 zAnswer:( d9 t; c2 Q2 b+ X0 r, H4 W# ~
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It only needs to be designed to withstand the weight of the water! ! ?: r8 d4 {, `5 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/ E5 L+ f5 S; v4 L2 x: ` 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。- G& {. u% `' [+ F
www.tvboxnow.com0 t" U: x6 B x3 Z/ S/ t. D ?5 A The Incredible Magdeburg Water Bridge in Germany. [1 K+ k# e1 c' C2 L: s
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.tvb now,tvbnow,bttvb; i6 t+ _8 c8 M7 e+ |
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. : n" d3 ]1 s, x4 _4 f9 swww.tvboxnow.com 8 R9 E, x7 v, G4 P+ z公仔箱論壇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. ) W, K& q8 i) g5 z/ D8 m. y6 n
9 C1 s* K @2 _5 R 6 Y0 [/ V8 X; ]; q[attach]1486500[/attach]公仔箱論壇$ P$ s. E) q3 |; I [attach]1486501[/attach]tvb now,tvbnow,bttvb3 n) V8 @" ]) V* e! a [attach]1486502[/attach] + O% e0 m1 s A& Y" D4 m) L' ktvb now,tvbnow,bttvb[attach]1486503[/attach] - W! G+ D: z( e. r# O Lwww.tvboxnow.com[attach]1486504[/attach]( |6 B/ z) M9 D% N1 q9 A$ X; p [attach]1486505[/attach] + Y. q- e" Z# Z5 D, ]8 g- h6 @" f ! k# m: w- s2 B公仔箱論壇作者: busyfun 時間: 2011-10-4 11:33 AM
