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 : U9 Z- P- o* q# y2 `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。* H a8 _* R6 \$ v. e+ X# J" Q3 L% ~
If you are not a Physics person, read on and learn a fact of physics. , q ~& }" ?. y5.39.217.77:8898AMAZING! - y W: Y+ B8 Q2 \9 X& z $ ^7 R( g9 r; H0 e+ S; X& J/ ?tvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!公仔箱論壇) g7 \) {' L9 G1 {3 L0 [ [attach]1486499[/attach] 3 T; I/ W7 M: _# w5 A5.39.217.77:8898! X5 v' e4 E$ N+ q3 x" j0 F% A
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! * \6 R$ ~- x) c8 \( Q3 T: ntvb 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. tvb now,tvbnow,bttvb' L: `" P2 t; x9 R$ E
It is located in the city of Magdeburg, near Berlin. # P% G W, x$ j; w. P$ f, V( c4 V) @5.39.217.77:8898 1 F+ h" X7 b) q# l9 D* S% |) v公仔箱論壇The photo was taken on the day of inauguration. 2 K% `; V1 H5 U+ n; |1 x3 }公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇: n2 i; A% j! L' u& w3 W
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Question:公仔箱論壇5 B3 S$ x; z& t" _3 m* K
+ d5 M/ K. K& c3 ^' Q7 Y) B) M: G! k @公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇- M* s6 L' Q& {
Or just the weight of the water? # r1 _5 U+ |; L0 D 7 L# H' K8 A7 N; G7 ^9 itvb now,tvbnow,bttvbAnswer: " q2 Q( A6 l/ Q8 F+ `( M公仔箱論壇公仔箱論壇! {' v: o+ a' _6 N, v! ]$ o9 O
It only needs to be designed to withstand the weight of the water! ( U7 u d Q; C8 `3 }
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% ~5 d/ _! Z2 S% ? * A- I8 `8 f4 S9 s6 B3 H8 p
9 _+ G4 p! q6 \3 Y! d9 mtvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany & h7 q* K! U0 O8 B1 w9 XTVBNOW 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 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.8 h1 Q- |7 D! r7 _
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. 4 C" M- N) d, NTVBNOW 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。5.39.217.77:8898$ u- `2 E0 e9 ]+ j
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. & b/ l- o3 c* y" xTVBNOW 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 f" X' f6 i. I$ a: m" x4 U
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。4 f) ?! D. ?, H' N" c7 Y, ? [attach]1486500[/attach] / [2 @2 E/ r4 M, q6 @: n1 GTVBNOW 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]1486501[/attach] & o4 r9 n. O/ P" d6 RTVBNOW 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]tvb now,tvbnow,bttvb' c3 M; C& y, F; Q2 t [attach]1486503[/attach]5.39.217.77:88986 t; {' b" n; G7 ]/ ?( f5 \ [attach]1486504[/attach]tvb now,tvbnow,bttvb y8 e0 j- F7 n: e# L3 u [attach]1486505[/attach] 8 o# ?- ~# @) a' O! j, U; ]公仔箱論壇* \! k$ R9 o$ N& c9 l3 b 作者: busyfun 時間: 2011-10-4 11:33 AM
這宏偉壯觀、傲視寰宇的工程傑作早在 1919 年工程師們即已提出9 O$ E" a: H; x
連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇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。; I# R% o1 K6 w7 } x, Y ?" J
也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。 6 ^$ @% g0 c, J5 M9 Y# ]4 V* G! \5.39.217.77:8898隨後的冷戰時期，德國分裂，該專案被東德政府無限期地擱置下來。 ]) W: A* v) `) V
德國重新統一後，隨著道路交通重大工程規劃的編制，水橋再次成為一個優先專案。 T' M/ W* X+ n' |) T( O- U. E5 p
於1997年開始建造，經過 6 年，耗資 5 億歐元，2.4 萬噸鋼材和 6.8 萬tvb now,tvbnow,bttvb2 ^% r& F; M" `: P, y: y8 c) l
立方公尺混凝土，完成了巨大的水橋，連接柏林的內陸港與萊茵河沿岸港口。 8 A- J; ]" n! C1 Z. A
2003 年正式通航，水橋全長 918 公尺。 而 2003 年之前，在米德蘭運河和 & q' |; h( j+ G易北河-哈威爾運河之間運行的船舶不得不繞道 12 公里通過。作者: swyip21 時間: 2011-10-7 10:19 AM
多谢您的分享！作者: Mimisan 時間: 2011-10-12 11:01 AM
first time heard & saw it, thanks for sharing, thanks tvboxnow!!作者: pepperjellabies 時間: 2011-10-15 09:35 PM
tvb now,tvbnow,bttvb2 ^% r& F; M" `: P, y: y8 c) l