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 K! Q% U$ { f1 H* Ttvb now,tvbnow,bttvbtvb now,tvbnow,bttvb- r$ i3 g' r" T2 {, Z
If you are not a Physics person, read on and learn a fact of physics. 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。3 C( o0 N1 b" m; ^6 N
AMAZING! " `, U9 R2 \5 K3 I+ w+ h5.39.217.77:88980 y& c/ g! N* T; }( L H3 k
Even after you see it, it is still hard to believe! 7 {8 F0 y1 ~/ 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。[attach]1486499[/attach]tvb now,tvbnow,bttvb! V4 n: K' C m7 Z
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 3 `2 W! S v( V8 g
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. " L: H" l. e3 {It is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb! ^3 |2 Q6 p& [6 n g* M, t
$ U3 T2 |7 h. o3 B& V6 w% T( J" I公仔箱論壇The photo was taken on the day of inauguration. a1 t+ ]6 g6 J1 F( v" }, }5 |3 C公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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。* \) ~( y8 c y* H- |3 W: t9 r
! Q, j9 F1 B1 ]8 U6 w5 J 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。Question: . j& k: G4 D. X t1 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。 . z n9 _, c% R; `6 w4 T5.39.217.77:8898Did 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。* C. [. n; s& l y! v
Or just the weight of the water? 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。9 E- h6 D8 v# e+ G( n
" S. Y, Z2 H x- z& `Answer: 6 y" T- k1 c( ^+ w" ?5 T6 q - k# G' M6 I7 u, P. k. |It only needs to be designed to withstand the weight of the water! + o1 R$ x( ~0 a0 @$ X
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.77:8898% J0 l8 D8 t- J9 _7 L$ d% ` } 9 y- g3 X4 x' z
5.39.217.77:88984 h5 q; Y# R& o! e$ L6 ~ The Incredible Magdeburg Water Bridge in Germany ; v$ d% Q0 S! z6 Z" G5 n% SThe 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.9 e9 h: @8 Q9 h r7 I$ D4 C
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. ) `+ s: ? `5 i& l! | P公仔箱論壇7 E% i5 z2 Z( A
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. / f ^2 d. j7 h1 e/ {" ~ 0 }- d, E! F T2 c: `tvb now,tvbnow,bttvb / Z2 h' R( X6 s& h4 Y5 h+ x$ y5.39.217.77:8898[attach]1486500[/attach] # `! f/ D0 `1 [; [. O[attach]1486501[/attach] : S6 S9 t( E$ p+ P; x) y公仔箱論壇[attach]1486502[/attach] 0 V% r2 ]: f/ a% Y5.39.217.77:8898[attach]1486503[/attach] 6 F0 o) c6 l! G% z: H! c- L2 c5.39.217.77:8898[attach]1486504[/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。" h% Y& k/ p3 y6 Z6 r, v( w [attach]1486505[/attach] 5 F* [( k/ x. C. \, B# i7 b: f 3 u! J; A3 f+ ?$ P+ Qtvb now,tvbnow,bttvb作者: busyfun 時間: 2011-10-4 11:33 AM
