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 9 t9 I }+ Q7 ?+ t: ]公仔箱論壇 + i8 s. z& n3 u0 ITVBNOW 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. # y1 e* _, l$ A& }, Y公仔箱論壇AMAZING! / |7 a/ ~* F5 Q" w- V公仔箱論壇 / k5 f: V m: `/ F& p5 nEven after you see it, it is still hard to believe!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。$ K( R- W \) R [attach]1486499[/attach] + a7 Q( Z( B. x. }7 j2 m; U; X$ t% N; [+ \8 d/ m. S2 e
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 2 R% ]+ I! a. ITVBNOW 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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ) f& Z: Z# X2 h& I, n! H% ]It is located in the city of Magdeburg, near Berlin.公仔箱論壇4 O4 ^/ n- z. [. ?( e! {
* c1 V5 N$ P, \' DThe photo was taken on the day of inauguration. Y. f+ h5 i% g* u" h$ ptvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. ; b$ t, z& f8 d1 K9 U ' a8 }2 P! Y- h# Q* b8 d% x# \5.39.217.77:8898Question:1 g% y) k& T5 F X0 |
- z# q0 G5 R. XDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,# f9 y' I! o: d3 e" a
Or just the weight of the water? 0 |8 M; v6 m0 C/ f! y6 e) L9 p/ s B6 _5.39.217.77:8898 + y* O; F' u$ {0 b: N; `! |tvb now,tvbnow,bttvbAnswer: ' F+ W( q, q) } Y公仔箱論壇 6 r1 z) f* C5 c- J$ 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。It only needs to be designed to withstand the weight of the water! 5.39.217.77:8898, m/ [" I3 b0 ~2 l8 P4 n
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.77:88984 R3 I. `0 O$ I' F# a, F7 q! f * T( t, @2 l3 Y5.39.217.77:8898 9 [5 }9 S% ]; a0 d9 P) ~2 m5.39.217.77:8898The Incredible Magdeburg Water Bridge in Germany5.39.217.77:8898. a( n: _6 c8 F7 T* R. E! c+ }7 H
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. 3 ^) y. W( @8 m6 [3 V公仔箱論壇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 B+ m+ v, z6 D& L$ U5.39.217.77:8898 5 y7 B! ~: f% D4 b1 f- ?5 G, oConstruction 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. 公仔箱論壇" c& R( f* d/ C$ I) i. v( D) z" Y5 |
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 U- s: f( h& B: s! m" E- W/ c
tvb now,tvbnow,bttvb: m+ J0 B; a% V$ h8 A1 {- K3 W+ L