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 + \! g; e9 f4 o# g0 E0 f5.39.217.77:8898公仔箱論壇* F& l% G" t% W
If you are not a Physics person, read on and learn a fact of physics. 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 w' y; x$ K+ v; k: S( T
AMAZING! 9 w( `9 q* o+ i: ^6 n 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 }' j- X( Z( W: F* _8 C7 ^
Even after you see it, it is still hard to believe!0 h# o" z" k# a/ M* q9 P [attach]1486499[/attach] 4 U/ Z/ L$ T' S! ]6 U+ H: h% }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。公仔箱論壇% F. j0 I0 L) t7 X& C- V K' l
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇. s$ X; j( ^1 S6 o
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ) l; ^7 n, P' ^8 iTVBNOW 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。It is located in the city of Magdeburg, near Berlin. ! A( d3 X, X2 |公仔箱論壇 8 c' m# ?5 j9 Qtvb now,tvbnow,bttvbThe photo was taken on the day of inauguration. & y' \1 R! u' W% E, o9 CTVBNOW 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。To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb0 \$ ~7 Z' P, s/ R" b4 u! a
. B0 t0 J! p9 Z# Z, N. W! r公仔箱論壇Question: ! c% [: h) Q2 C* g( A5.39.217.77:8898 T* g5 N: N2 X
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, 9 N4 X2 n0 X% ^) c' x7 \7 `" J# u5.39.217.77:8898Or just the weight of the water? ; l T. Y$ u8 k& z/ 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。tvb now,tvbnow,bttvb8 w7 ^, X+ V& |) U. A
Answer:5.39.217.77:8898# g' D" p5 f. K0 D, n- q. S
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It only needs to be designed to withstand the weight of the water! : S4 x! a/ D' E* T# f/ L0 w
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。9 \$ l% Z% Q! |& p 6 R( G( a1 h K' m& }! `tvb now,tvbnow,bttvb7 E7 f3 @; S) v; o) z/ e" \4 j \9 c The Incredible Magdeburg Water Bridge in Germany公仔箱論壇+ \( o+ p4 A& k$ }" c r) J1 G
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.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。, w3 Y& Y1 {1 d( x% B# l6 g, `
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) U7 s3 c! F' T. o: Ltvb now,tvbnow,bttvbTVBNOW 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。 s' d$ R* Q2 T. l' e% \$ z
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. 5.39.217.77:8898/ u5 M1 l9 v4 M) m+ P' L
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5.39.217.77:88984 x% C, C) m$ Z( f. j8 i [attach]1486500[/attach] 7 K+ V) l3 r& t( t公仔箱論壇[attach]1486501[/attach] + L$ K" X3 n- ^0 P3 O9 U[attach]1486502[/attach] 1 ?2 s# a% Q: X$ a% g, s: d公仔箱論壇[attach]1486503[/attach]5.39.217.77:88982 `, ` I; [9 \0 D$ f [attach]1486504[/attach]3 B' a% F- u( h o$ @( m$ f [attach]1486505[/attach]- |8 e; W1 Z2 V2 E
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