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 $ k. K" X1 y6 m$ @, ^- l& ]4 c; rTVBNOW 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。 P6 ~. m- i/ y& Q @! M: ]5.39.217.77:8898If you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb" F: P/ {3 ?' m9 D
AMAZING! " x% F* G. N+ h3 q1 x" L# V' X' T公仔箱論壇0 p" G1 Z N. [
Even after you see it, it is still hard to believe!公仔箱論壇# i( p I j5 m3 N [attach]1486499[/attach]tvb now,tvbnow,bttvb% B6 M0 H; J- O
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! # j- M" J& W" W5 U& `. otvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 6 N' Z9 |" o$ u# }- wIt is located in the city of Magdeburg, near Berlin. . h% Q! W9 Y/ z3 {; L3 W* L公仔箱論壇' O# W8 o9 `& t2 w) U9 q1 N; X
The photo was taken on the day of inauguration. * M6 w0 j$ g' ^) V6 [" n9 _+ FTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. 5 ~; v; C1 l. Q/ C" {' l( S, k # V/ r5 o7 G/ K' ]; Rtvb now,tvbnow,bttvbQuestion: ' w& ?( p, i# X7 v+ i8 c5.39.217.77:8898 , E, W: T1 i8 l% v' U& c' oDid that bridge have to be designed to withstand the additional weight of ship and barge traffic, : b' g/ f8 O% hOr just the weight of the water? 7 P F5 Y( V; ?! 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。 7 }3 q$ b; q$ q0 VTVBNOW 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。Answer:% r) T8 v3 b9 {4 w! \1 S
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It only needs to be designed to withstand the weight of the water! , _& O( N2 ]/ T5.39.217.77:8898Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded 3 S5 U) i; N% a" K2 l" Ntvb now,tvbnow,bttvb W3 S# l; L+ C
& {; v! {) A, w7 ^# n, c2 \ |( ?公仔箱論壇The Incredible Magdeburg Water Bridge in Germany * d5 p: d- r1 n6 nThe 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. $ }- X3 `- o. e+ F) K& vtvb 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. 6 L' P5 l- B4 U5.39.217.77:8898TVBNOW 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。- @2 K8 t z- g* n+ h# [: { ~
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. 7 b3 ^* G: x; E# n8 {0 M( ~5 C7 b5 s( T( L. U( H- s$ J
3 N3 d& ~" }4 Q) b5 J1 g( N! b [attach]1486500[/attach]# {) y+ D& ?; t" H [attach]1486501[/attach] / R, x/ I' t% R5 p[attach]1486502[/attach] & s/ n. v6 H% ^" O[attach]1486503[/attach] , ~6 {4 W0 G5 I" T* x5.39.217.77:8898[attach]1486504[/attach]5 K3 R: J, ? ?6 C" J; n$ K [attach]1486505[/attach]: l9 I) O0 m5 I
