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 $ `2 \1 u" I1 S, w2 \; r# Ttvb now,tvbnow,bttvb : Z& S- [: U' v5 s& ?) k2 yIf you are not a Physics person, read on and learn a fact of physics. 5.39.217.77:88982 Q+ |" d; N! ^
AMAZING! - ?+ A# r+ T$ o2 I / g4 w! K+ ]4 k3 P r+ u
Even after you see it, it is still hard to believe!公仔箱論壇! f& ^/ ]: d! f4 A! O: q [attach]1486499[/attach] 3 R# Z7 x( \, Q2 }0 }9 P+ e5.39.217.77:8898+ H! H" c- ^) E; w" ]
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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。1 I' Q* b8 q& |
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 7 z. Z6 n( x3 w( F8 t5.39.217.77:8898It is located in the city of Magdeburg, near Berlin. 5 _, [% }3 @( d8 m5 h) X* O( o3 \! `公仔箱論壇0 E5 `+ p! ?. C9 k
The photo was taken on the day of inauguration.5.39.217.77:8898 ? ~* c+ `9 a/ A
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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 @& e0 z/ ~. R
5 o s# e8 K: W* `% W+ Z公仔箱論壇Question:tvb now,tvbnow,bttvb1 M. m4 N4 J z" y4 M' U
0 R( A9 [. u: ?: mtvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,- x( A- e X/ i) k; i; }
Or just the weight of the water? tvb now,tvbnow,bttvb, b9 f+ D; E9 f! ]3 V0 k
- V3 E( m: ^9 s- U: u9 qAnswer: ( E! Q. K/ q% o9 T0 @+ n ' v( y2 Q& W( c公仔箱論壇It 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。7 Q5 J4 Z8 U9 Y
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 * F; `/ e" C9 W1 h+ f5.39.217.77:88981 Z+ c8 S, F. t/ V/ O: t' a
4 y8 ^, N4 t0 d9 ?8 d/ n The Incredible Magdeburg Water Bridge in Germany) V# i! Q5 P( @: M ?
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.5.39.217.77:88988 l2 N; G+ y4 ` ?7 N$ J2 C6 Z
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. 6 ~6 K/ P N( K- D公仔箱論壇 9 ~1 `6 k3 `3 @, f% qConstruction 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. s' M; Y* w# u8 Y7 {3 i" ]" q( S5.39.217.77:88987 K7 N& i+ K5 i# r) P5 W8 E, {
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