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 tvb now,tvbnow,bttvb8 ?$ B2 @+ Y0 V. H, }
. T3 s/ K2 Q5 p7 ?. N8 j& I
If you are not a Physics person, read on and learn a fact of physics. 0 W9 X% X; l: p2 I# ?
AMAZING! ' o/ {5 F0 A4 i, Q ) m7 `4 i6 [1 k/ O" q9 ~; D* G公仔箱論壇Even after you see it, it is still hard to believe! 7 r- u* N3 ?! H( @" [- w* _公仔箱論壇[attach]1486499[/attach]tvb now,tvbnow,bttvb; K- G. p; }" ]
' _+ C9 D# E+ v; A3 B3 B
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 0 M, p4 n( \0 p2 g* V# M. z( w! |5.39.217.77:8898This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇% J* e, X( Y. j, u
It is located in the city of Magdeburg, near Berlin. 2 q0 c% @) O% t8 L2 t$ H5.39.217.77:8898 ( ?, C2 V3 L+ I8 g' Stvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.! ?# _* m- S& Y4 x0 g$ H/ U) I: r* K
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. % Z4 x' r' u+ K* l5.39.217.77:8898; q- X/ T; }; V: f- S
Question: " x3 [7 m5 D; }) J9 L5.39.217.77:8898 * w3 K& ^! e* E/ S. O- vDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb% j# q6 a7 p. }' |$ J; w+ t2 j
Or just the weight of the water? 6 Q' V' w8 o# D% i. q( U: Ytvb now,tvbnow,bttvb/ W4 `7 Z' Y& E' x; l$ x- |
Answer: & i: U' A0 c0 S. T# ~7 dtvb now,tvbnow,bttvb, c" `1 G/ y7 i0 b1 ]
It only needs to be designed to withstand the weight of the water! 3 m+ P5 `( n# `3 t/ 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 % f5 D- r! ~+ J- N9 ?4 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。% {3 d3 u& u! U. q4 k
8 J! ^1 I# E2 ~; U/ z* Z" X' }The Incredible Magdeburg Water Bridge in Germany5.39.217.77:8898& D8 }' f7 }% B U$ l T( b
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 y1 w2 @& H% z7 k0 Z6 _# M1 lTVBNOW 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 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. , K. a3 d: V8 N公仔箱論壇公仔箱論壇* f6 \; x2 r+ B% N/ H6 m0 E9 J( Y: u3 |
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. 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。# n8 F5 L4 n$ |( u0 v; Y
