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 * M1 l. t0 @! v r& I% i3 o* |
! E9 U1 q0 x* ?# u5 b( `% Awww2.tvboxnow.comIf you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb9 U/ }" r; r" P2 P; U8 m
AMAZING! 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 x( z7 k5 m" m$ d 4 M5 b. u% z) ^+ f: l: DEven after you see it, it is still hard to believe! ! A: U# k( p% R/ F" e/ p1 O- W[attach]1486499[/attach]公仔箱論壇$ W! A6 u9 K/ j$ I+ G
2 d' m2 j `. Z" B5 S/ T$ wTVBNOW 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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 2 D! }0 f& ^+ dThis 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! F, Y' ^7 I* i! M. V3 _! Q/ G
It is located in the city of Magdeburg, near Berlin. 3 P. M z$ `1 v1 ]' v8 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。+ b" h6 N" g3 A7 p. z& }
The photo was taken on the day of inauguration. ( e7 n, I" ?2 u8 q4 f; }+ Mtvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.9 a" s) _0 ~. {
+ c( f+ G: @6 }% @Question: 1 h! v2 w& j# k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。' M5 m: `5 M" z0 o5 C- b. V
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, ; F+ E& t G' N4 dtvb now,tvbnow,bttvbOr just the weight of the water? www2.tvboxnow.com' f7 u$ E: _/ _8 M! _9 `
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Answer:tvb now,tvbnow,bttvb; {) f" a9 S% x: `
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It only needs to be designed to withstand the weight of the water! 公仔箱論壇. i5 D3 x8 ~7 f( Q7 `, f
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 * i' O+ l' I' X# [* v- {tvb now,tvbnow,bttvb' g$ K1 [( \0 v% @" N! C5 p
7 S3 p1 j$ D+ i4 _, K The Incredible Magdeburg Water Bridge in Germany # \. N) d7 V E2 v( T2 \/ j公仔箱論壇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.9 j% M* g$ X0 r! 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. 4 o, J4 {, z8 V2 |! U. K4 s
9 H/ M1 {- P2 V$ S4 e& y+ P/ ptvb now,tvbnow,bttvbConstruction 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. $ ]' N: }5 [- S1 g+ a( q. \
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& m' v0 f4 l* Z: v+ s+ x1 r公仔箱論壇[attach]1486500[/attach]! z+ [) Z# o5 _1 S [attach]1486501[/attach]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。; G9 m2 o0 o* q u+ R. J [attach]1486502[/attach] / j1 V. E e; z0 gwww2.tvboxnow.com[attach]1486503[/attach]* O% Z* t2 I Z; ]3 t8 z9 o+ v$ O [attach]1486504[/attach] 8 a4 s/ C; D' E& {1 pTVBNOW 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]1486505[/attach]公仔箱論壇" A; U7 R7 M! [; a8 A
" c( l- C# p: p: L$ S 作者: busyfun 時間: 2011-10-4 11:33 AM
