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 5 |$ E1 O8 n/ j" [ ]& ~$ f, P3 Z5.39.217.77:8898" M6 P. Z7 _ G& I
If you are not a Physics person, read on and learn a fact of physics. 1 w2 m2 o3 c& F& w) C# XAMAZING! & r; T" |6 E$ Y' a 5.39.217.77:8898' B3 `3 _: u: Y/ n3 G) n# Y
Even after you see it, it is still hard to believe!公仔箱論壇- T. ~1 d2 q/ q: Z( t0 g [attach]1486499[/attach]tvb now,tvbnow,bttvb/ ]. I5 Y% \7 V7 n3 }5 m7 R; [/ w
1 A* _4 ?2 u% u5 c7 J公仔箱論壇Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! ; G% t6 p7 K+ X; Y* K) v. U$ Btvb 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. 1 F" e5 M3 Q5 U, v; }. otvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.公仔箱論壇$ R7 `( p% L5 o: w8 z9 d9 J% V/ v4 ]8 E
, `+ Q8 y9 E7 o$ Y7 s公仔箱論壇The photo was taken on the day of inauguration.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' ?* \/ g9 W! y6 l0 J* |
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. ( ]1 [7 ]: O2 D ! i T7 \1 o9 D' q% |$ E公仔箱論壇Question: 0 C7 p; t9 s+ ?1 ?- s- T1 e9 @tvb now,tvbnow,bttvb / F( T2 @0 A5 a u( Ntvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic, . r9 h" a" S/ X+ itvb now,tvbnow,bttvbOr just the weight of the water? 9 i9 e/ H A; ^3 ^# T2 R, F5.39.217.77:8898 8 P5 O9 W( G6 E( ?3 Htvb now,tvbnow,bttvbAnswer:; r' ?4 @; c& m" Q1 [' a% s3 J8 B% G8 l* B
2 f' a: n- e( t" n* [: I# V公仔箱論壇It only needs to be designed to withstand the weight of the water! 5.39.217.77:8898: [$ j. x8 W% t- r, U' v" e
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 H) O$ t5 d& p$ b公仔箱論壇2 k5 z1 i1 G5 J* y3 x6 q7 C, c \
% o4 k5 \9 V- p- Q7 d- \) [ The Incredible Magdeburg Water Bridge in Germany % ]' z( I8 u0 x) I) V9 L+ N7 Ytvb now,tvbnow,bttvbThe 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.公仔箱論壇. o4 F1 j/ `. ]5 p4 s1 I9 k
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. ) @$ X9 K. l3 |1 Q4 k5 |' C4 n
& p! F/ J4 ~$ W& I. g( OTVBNOW 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。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 N) j' z8 e$ H1 b1 p( I4 o2 bTVBNOW 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。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。0 j0 X" }$ R$ D% Y; r1 [+ `3 @1 `
tvb now,tvbnow,bttvb& L% ]+ ]( x% N5 t5 { [attach]1486500[/attach] * F$ k. o; I' o5.39.217.77:8898[attach]1486501[/attach] I4 h% z2 X% s* F6 B& T0 S# M2 j: a [attach]1486502[/attach] ) g6 f( G/ U. c' uTVBNOW 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]1486503[/attach] . i& s( q# W8 v/ N[attach]1486504[/attach] - U! ^ _: e. i1 B. b. q[attach]1486505[/attach]3 I9 ?7 k4 D: X" d1 Z! _2 K1 d3 w% Z; X
tvb now,tvbnow,bttvb% o8 r K |- h+ _ 作者: busyfun 時間: 2011-10-4 11:33 AM
5.39.217.77:88981 {( \. q# m- l. K+ @