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 3 [1 v. u$ T G0 n7 N8 R
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If you are not a Physics person, read on and learn a fact of physics. ; W/ Q& D5 O# s0 O7 ?AMAZING! # R6 l3 c/ p( D0 k( V g9 F/ F' 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。- D& N7 n+ k p" _" r
Even after you see it, it is still hard to believe! 0 ^" F" e- g7 I[attach]1486499[/attach] 5 Z- l5 Y0 Y$ q# } u( t) M : C; J% B+ Z7 z# U0 d2 ]- x+ O+ YMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! ( Q6 L. J7 D6 K) ptvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5.39.217.77:88986 d2 X* V. _; z1 V; Y$ ~1 v5 `
It is located in the city of Magdeburg, near Berlin.( X" G" F7 k) x" `* a8 t- |
k5 T% m7 @; j- j( q2 TTVBNOW 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. + ]# G4 R: X6 n) _3 M! C2 t5.39.217.77:8898To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. w; K }8 p2 E+ [& wTVBNOW 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。tvb now,tvbnow,bttvb2 ^ |! U6 {5 L/ m$ m$ V5 ?
Question: - C( o( D! w3 B+ ~9 J5.39.217.77:88985.39.217.77:8898 x% q* {6 X9 v+ H7 }
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,) ?3 v2 E7 k9 ^% i+ |
Or just 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。; `: H5 b# V4 v+ {
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Answer:公仔箱論壇- p) I5 U6 A( N0 c% W9 `0 e; t
! E4 H$ g' V# Z4 ?/ ?/ iIt 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。. b7 @' N; H4 R8 d& g4 _
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 % G# s$ a; R! ]2 O; M 1 G2 ?# ]2 b. U* x. J) i公仔箱論壇 7 L! N) r6 K3 R1 C6 @The Incredible Magdeburg Water Bridge in Germany公仔箱論壇, ?9 ?6 e' D: y4 W# \; F& V4 \3 D
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.! \3 Y$ D+ v" ]; p0 w# ^' z* L4 o+ L$ I
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. . r7 L& p, _/ ]2 z4 D1 _
; E$ d: n) B6 I1 U/ uConstruction 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. * N3 @- R3 s7 |. p8 ^
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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。( j' O. c6 n* [# M7 w [attach]1486500[/attach] ) V: F' W1 N- e$ }6 I# l, R[attach]1486501[/attach] ; d+ r: t& L7 t3 `公仔箱論壇[attach]1486502[/attach] 6 O! I" Y- y3 R- n9 O7 O公仔箱論壇[attach]1486503[/attach]5.39.217.77:88988 {+ O: |) p7 H% R1 f$ z) B. |! u [attach]1486504[/attach]公仔箱論壇% S5 ]1 n0 U( A) I [attach]1486505[/attach] , i% c3 w3 ]7 n; 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。 + ^/ j8 `$ u! J8 O公仔箱論壇作者: busyfun 時間: 2011-10-4 11:33 AM
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