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 1 f6 @" k& N1 \5 o7 @7 ` 5 q" u( ^# X7 ?3 J2 \) P- W; JTVBNOW 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。If you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb. _+ b: e0 _- H1 K, D; ]1 Z
AMAZING! 5.39.217.77:8898$ ^! |( M) S- c- Y6 t, V' P tvb now,tvbnow,bttvb2 r+ _% z, d# ?4 v+ a
Even after you see it, it is still hard to believe! 8 f4 p& s- b) \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。[attach]1486499[/attach]tvb now,tvbnow,bttvb0 N, ?) H# [( ?% b. p& `2 f- `' ~, k
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 6 F, V/ I( f0 j6 Q f0 E# iThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. : @2 h2 b& ]9 ^4 Q
It is located in the city of Magdeburg, near Berlin.2 D, R0 p" I: V5 n0 Y2 d5 Q
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The photo was taken on the day of inauguration. ! |! p2 x( ^ D) P9 cTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.8 i6 I2 X# v" F0 Y, Q! ?" P0 O% |5 B
$ L7 e; I/ a, `/ N9 B9 NQuestion: " {$ M3 d G R" x1 N5.39.217.77:8898 1 e. Q: d4 Q- f }) p) d& h公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,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。: m2 y+ T* t: N
Or just the weight of the water? 4 p7 o) b6 A) v& x* D) g: H+ i, l5.39.217.77:8898 ( G3 }( W. h( Y5.39.217.77:8898Answer: - h$ N, X1 I* W1 f% ?* `) s" T, N" L公仔箱論壇 3 ^5 D% K k8 [1 `; U$ X公仔箱論壇It only needs to be designed to withstand the weight of the water! ; }/ h2 s$ P* }% D1 b. d( X1 ^公仔箱論壇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 8 M: F" z4 {8 G" Z* [, o5.39.217.77:88985.39.217.77:8898/ A7 X1 \) c, I3 L* {
公仔箱論壇" _5 T* ~2 [; E4 M The Incredible Magdeburg Water Bridge in Germany ! q8 w, [2 }$ b5 i# v) n& h5.39.217.77:8898The 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.tvb now,tvbnow,bttvb i" j3 k c/ Y- G) V( q
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. ! U0 ]/ h% q" u6 \ k, ?tvb now,tvbnow,bttvb % ]& U5 w3 p, M% G% Y* `9 V5.39.217.77:8898Construction 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 Y ~& W. m) K) o8 P& f5 B! H, } 4 n! R) B2 Q9 H, x8 G( g+ Y" ] / }' G% q/ j! r, V3 I& v4 Y8 ?& Z[attach]1486500[/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。 J# Z- \- |: r- @9 C [attach]1486501[/attach] $ S4 q4 u& H ? a Y+ s/ Z: ^tvb now,tvbnow,bttvb[attach]1486502[/attach] `" s f T- c" d! B[attach]1486503[/attach]tvb now,tvbnow,bttvb1 ~, |( z7 g1 w8 ]7 O [attach]1486504[/attach] ! Q7 r. S# X+ f3 y7 fTVBNOW 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]tvb now,tvbnow,bttvb3 \: C& Z1 a+ E9 G& V" }4 v
) f0 w$ N5 E% F! k3 Q, F+ z 作者: busyfun 時間: 2011-10-4 11:33 AM
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