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 7 Z5 b; L" P8 c5 u6 ?2 x5 L! Ptvb now,tvbnow,bttvb公仔箱論壇& } x, K& _6 o& ~ u0 I4 a6 K# ^
If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇7 j( E: N6 }! {: h; M/ i
AMAZING! 公仔箱論壇3 P4 V ^8 V( [) a 公仔箱論壇) h5 P# t# m' Z2 F, E
Even after you see it, it is still hard to believe!9 c; o1 F2 T1 I8 X' z# s [attach]1486499[/attach] 3 X9 e7 L! q {7 Z$ |$ n5.39.217.77:8898 9 U6 Y% z! S6 `公仔箱論壇Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! / k0 l k1 ~+ r; \$ P+ k; d: 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. 7 Y! ?' W$ r, q3 O, ^ H& X+ D% C+ lIt is located in the city of Magdeburg, near Berlin. ' S. B. u' m0 T公仔箱論壇 # k. @- V$ H, f D' ^& y8 F: m公仔箱論壇The photo was taken on the day of inauguration.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。6 X, l' x2 K' X, v) ]% j: k2 j9 y
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.# ^* ~8 x- z: d3 R8 o) D- @
h4 y" J* h! `: M+ b; C4 ttvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇5 p. A6 w8 \- P; E6 Z
Or just the weight of the water? 3 q) {# x; s* P5 u$ `
+ Z4 ~+ m. [ g- v7 b* P公仔箱論壇Answer: 2 I: N, Q3 D% Itvb now,tvbnow,bttvbtvb now,tvbnow,bttvb; ]# f; G7 ~* w/ H5 T6 w8 T9 }
It only needs to be designed to withstand the weight of the water! 5.39.217.77:8898; @1 l! U- {8 _6 \' q
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedTVBNOW 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。2 N- R+ N: I* C* M - Z5 N# P! _2 P' s0 B' r5.39.217.77:8898TVBNOW 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。* T b# N, J% q+ z* u The Incredible Magdeburg Water Bridge in Germany公仔箱論壇$ f/ a$ Y6 t! ^6 x1 Z2 [' R' ~
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,bttvb6 g" @/ K* H+ e- w" 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. tvb now,tvbnow,bttvb: b) N# s+ J8 U5 c8 _9 w: Q5 ]
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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. 8 L' q0 r: P$ Y* Y6 ]9 Q
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tvb now,tvbnow,bttvb: a. z8 W- U m, M1 x* u, U [attach]1486500[/attach]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 x" \$ g# C6 O" X3 Z! W0 x+ O [attach]1486501[/attach]5.39.217.77:88989 U( H# j; S3 } [attach]1486502[/attach]8 v7 z+ z, H) n% W) M1 z) R" u [attach]1486503[/attach] - w* S' E9 z& r& l/ c公仔箱論壇[attach]1486504[/attach]公仔箱論壇5 M# ^5 U- z% ? [attach]1486505[/attach] / r" U' @' @5 E8 i- j2 A4 v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 L$ T( ]7 { \+ m/ B, o" \; n4 a) s9 J 作者: busyfun 時間: 2011-10-4 11:33 AM
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。/ f; l7 A3 y/ b# [: j2 M9 F3 @3 A