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 tvb now,tvbnow,bttvb, r$ s# @7 n! @" I- i5 V, G
5.39.217.77:8898% |2 h6 t+ R8 T9 B* T
If you are not a Physics person, read on and learn a fact of physics. . T/ O: \$ O& l8 ^" o9 b% y
AMAZING! 6 [2 {* a' x% h& V公仔箱論壇tvb now,tvbnow,bttvb. x7 U$ y* B3 E9 `6 Q
Even after you see it, it is still hard to believe!5.39.217.77:8898) H [9 F/ H2 f% j5 o) l W [attach]1486499[/attach]5.39.217.77:88989 a3 I3 f) u0 l# P c# \5 {
8 n0 i9 D3 D) ]8 h8 A5 f5.39.217.77:8898Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! " S% E7 @6 T$ T( v# b; V% R% P j
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. . T4 M- w7 E' H6 pIt is located in the city of Magdeburg, near Berlin. ! }/ F8 G5 K! h 0 k8 ]7 ^1 N" M" d! G |1 Z8 {2 \The photo was taken on the day of inauguration. e" N/ F% w- R, l% ?7 STVBNOW 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. ) B1 y5 l; ~9 A) C6 I$ c 8 {2 S; I. n# {0 Y! N& Z% ?tvb now,tvbnow,bttvbQuestion:tvb now,tvbnow,bttvb9 V4 H' I5 O4 J- u% N- N' I+ P
5.39.217.77:8898 ~: Q1 @' f) f* S$ A* E8 Y
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, 0 o: q9 f$ ^! ~ }- j$ P! x6 lOr just the weight of the water? tvb now,tvbnow,bttvb( X4 t0 L: B# k* h
公仔箱論壇+ \$ s/ j( H: w7 U6 E
Answer:8 ^+ i8 m/ A1 Q
# _2 h- t D! I% `4 s1 b+ ETVBNOW 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 only needs to be designed to withstand the weight of the water! 0 {$ e' f% |% ~; S; M7 g3 t
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded9 O& L1 J' m4 b: n+ i0 e ; T. W, i }5 A3 J& V, C. w- Z 5 S) |+ Q. B7 f- D4 C4 p公仔箱論壇The Incredible Magdeburg Water Bridge in Germany * @8 A$ {4 E3 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。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. / @! x: P4 l' \& n; `2 V! K5.39.217.77:8898The 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. % G( B4 O5 m, `" r u) B8 J
0 I3 L* l/ |0 uConstruction 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. - {2 u9 a8 r( ~tvb now,tvbnow,bttvb ) S( U9 B* ^3 ^, B% ?# n 8 h5 X2 x; J0 r* V# M9 ?tvb now,tvbnow,bttvb[attach]1486500[/attach]tvb now,tvbnow,bttvb O$ k5 X# A- l0 c& F# ] [attach]1486501[/attach]tvb now,tvbnow,bttvb9 G' Y) |% |, M; x. m [attach]1486502[/attach] # Q8 s( V; w r! o5 N% \# ftvb now,tvbnow,bttvb[attach]1486503[/attach]tvb now,tvbnow,bttvb/ W. L+ `: Y. p [attach]1486504[/attach] G+ Y( _3 {9 I8 x8 ktvb now,tvbnow,bttvb[attach]1486505[/attach] $ D* W' ~# N$ @ 4 S& a1 L o2 Z" R. B Y作者: busyfun 時間: 2011-10-4 11:33 AM
