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 \5 X$ J2 N+ | o0 Z' _www3.tvboxnow.com% O) [9 T- o- H
If you are not a Physics person, read on and learn a fact of physics. ( K* [+ `: J4 S1 X4 F% x6 pAMAZING! & [; @5 {. o r( g* i. Z* }+ htvb now,tvbnow,bttvb$ w! H$ x9 i; _0 c$ z
Even after you see it, it is still hard to believe! - `" R' j% X1 q8 B/ Htvb now,tvbnow,bttvb[attach]1486499[/attach] + y% |0 v$ i5 l0 n+ \$ k6 l: ]( J0 I $ y4 G5 E2 m" L9 B6 [Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb! @' J7 g& m, t S$ N1 _
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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 r6 c% }8 X+ _% s% K5 K, ?, G
It is located in the city of Magdeburg, near Berlin.www3.tvboxnow.com1 O. _) A9 _; D" T) v
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The photo was taken on the day of inauguration. ) o8 V/ E; M5 D, e8 Y+ ^ v# @2 G, I7 Ktvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb/ V5 \' z0 Y- s& q9 C6 N8 E
9 Q _, L/ M4 b, |3 C1 l8 D/ YQuestion:tvb now,tvbnow,bttvb7 J8 \4 B4 n3 U7 ~( t7 G
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, 3 s8 `1 n6 ~1 B6 m3 oOr just the weight of the water? 6 r( S' k+ ~% Swww3.tvboxnow.com , g' ^2 o8 g7 r; A8 }Answer:www3.tvboxnow.com# R5 E/ C* o& x4 c0 v( ]1 Z) J
* H. w" ~9 [$ q" TIt only needs to be designed to withstand the weight of the water! 5 w x( l' A4 l4 C8 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 : G4 E# o& `, i' ] 7 m- L+ V h2 s% H" s, BTVBNOW 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。 ( X5 D, T7 d3 L- O8 b$ f% ttvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany2 J ?, ~7 |: S3 P* _. s
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. % v7 D0 ^6 X, ?* T9 l/ V* f, E- rtvb now,tvbnow,bttvbThe 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. 公仔箱論壇- q; p, y+ X# x+ D$ l. U
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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. ( s5 O6 k* u4 g 4 e+ L1 E% y5 H8 `+ w; T: t. t' d; ?tvb now,tvbnow,bttvb+ E& |0 u L4 \2 i" [& i [attach]1486500[/attach] ( D! P) E9 s7 `[attach]1486501[/attach]www3.tvboxnow.com" Z" J5 `' u7 j' d. n5 Q1 W7 I [attach]1486502[/attach] 9 l; l5 J. b) E8 ]3 O1 z[attach]1486503[/attach] ( m! u1 y: ^: p1 L; \: kTVBNOW 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]1486504[/attach] H1 u0 X% G) c# U. Xtvb now,tvbnow,bttvb[attach]1486505[/attach] S& T. [9 F6 I. N- _ P
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