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 公仔箱論壇! I3 e! v, T% Z. Q( ]' C
4 p1 R' l0 ~4 X+ }) {& F: m1 {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。If you are not a Physics person, read on and learn a fact of physics. " v6 g$ M; u& }* E6 @8 o$ ^
AMAZING! 1 p$ b. x5 A& u/ @7 u1 D3 A6 d6 \5.39.217.77:8898 * ?' Q, P5 H7 U0 ^7 Q5.39.217.77:8898Even after you see it, it is still hard to believe!5.39.217.77:8898& _; W, u7 l' F [attach]1486499[/attach]9 I3 c$ u: ?" B' G6 O7 D4 z! H l
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5 Z w4 x c9 R9 Z/ ^- x8 T/ hTVBNOW 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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. - [3 j# @# X5 ]$ VIt is located in the city of Magdeburg, near Berlin. ; |8 j. W9 ^" J; n$ a9 ]- q5.39.217.77:8898- J4 I0 V o- z- S$ d
The photo was taken on the day of inauguration.公仔箱論壇1 k- S3 a- u9 e7 W
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.4 i( }4 l' U! u3 ?0 r6 k' {
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。+ Z) v: T3 @ Y7 a2 y) N0 L
Question: + S! F. s# l& ?& a6 E8 j公仔箱論壇 $ h+ {$ ~& k, K4 e$ `7 r公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,, I; O; h# _) t- z" L4 Q* @
Or just the weight of the water? 7 m0 U9 W6 x# f& d' 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。 - N6 n5 y5 ~' L, ]: DAnswer:0 F) Y' A5 v' S5 S; l2 L2 e1 T9 G3 ?
0 W# }% a" x1 bIt only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb2 L9 d: m7 a3 l+ E: M% 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% k6 m5 i* N* k1 O$ c 7 q7 J7 v7 J% e: d ?& s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。0 S" e8 ]% h9 M1 t+ v* n The Incredible Magdeburg Water Bridge in Germany5.39.217.77:88987 w* g5 Z. |3 [6 Y2 `4 g
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.公仔箱論壇5 q) }, r& k8 R! [) @$ d
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. 1 c7 i6 u0 q# C$ _9 B # N/ ~3 e% _" w/ V3 X+ mConstruction 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. . p7 Y* |7 f7 _5 J" R4 K
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2 ]% _3 ], b7 b* p5 D' c* y[attach]1486500[/attach] ; C5 z. P, c0 H. R5.39.217.77:8898[attach]1486501[/attach] , [/ a' @3 p2 G5 ATVBNOW 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]1486502[/attach]3 ~0 Z% d. z/ r X) P$ A* B" z [attach]1486503[/attach]tvb now,tvbnow,bttvb7 A0 E! W7 f0 e1 { [attach]1486504[/attach] 0 F7 B5 q0 U+ f. u: Q[attach]1486505[/attach]2 w. m/ d# c; Q, o9 w
, m2 k5 O6 \9 _2 n8 b. g# v 作者: busyfun 時間: 2011-10-4 11:33 AM
