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 W2 d# G, c" R公仔箱論壇 : r# @$ m" z( z" [; c7 U公仔箱論壇If you are not a Physics person, read on and learn a fact of physics. ' I4 e+ s1 m" |AMAZING! / C( j E: F9 gtvb now,tvbnow,bttvb # C( ]% _' |- N8 B! i4 r* @Even after you see it, it is still hard to believe!公仔箱論壇4 A" H! t/ x# y3 Q$ F [attach]1486499[/attach] ; r. O' `" C' z! g2 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。5.39.217.77:8898% \8 G$ j: Y6 q6 H
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! % u$ ?7 f) r% D) z% u公仔箱論壇This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 2 h" ^8 ]( a2 x" E9 x W% utvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.5.39.217.77:8898; K/ [0 F0 N( i
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。- X; T) A! x) \. `1 T% j& v
The photo was taken on the day of inauguration.5.39.217.77:8898$ j8 ]; k4 G* C8 f, s y
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. & E- Z# @8 \- J% M, w6 l/ \公仔箱論壇 $ Y" ^/ f1 w1 @: v2 QTVBNOW 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:公仔箱論壇$ Q$ g3 c7 @* v& `. }- h! b
4 y" I! R: K/ r0 g& ~* HDid that bridge have to be designed to withstand the additional weight of ship and barge traffic, # I }" L% X0 o9 o/ ?Or just the weight of the water? 0 p, j9 c3 X% s. T0 i( `) J* g公仔箱論壇 5 ~: Y! ?# D) }: n公仔箱論壇Answer: 1 B( F3 U; |3 x: ~# S& 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。 " O4 ?- h C% F+ ~: X. U/ iIt only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb' \! V0 e5 d: o; ~
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 2 W$ `" |7 ~1 N6 I$ { . A& i3 t+ J% R9 i0 h" s3 a$ 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。 8 _$ G: u; U0 I9 O$ s3 U( L公仔箱論壇The Incredible Magdeburg Water Bridge in GermanyTVBNOW 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 e! W$ j N0 O% E @
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.$ ]( o9 D4 D8 f6 S! A0 V% z
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. 5.39.217.77:8898; x$ s! b3 y. O
. d5 x. V8 i0 }8 u/ R, mTVBNOW 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. 7 S/ R4 a# I+ A2 i5.39.217.77:88985.39.217.77:88980 p& `$ G# D) E' X, f4 c
+ N. ^8 V8 b; q# m3 MTVBNOW 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]1486500[/attach]tvb now,tvbnow,bttvb7 q; i% L+ H% `$ p `5 \ [attach]1486501[/attach] , _: I( z8 |# c8 n9 E4 @[attach]1486502[/attach] & B% D7 Q3 d7 M! t8 F5 v[attach]1486503[/attach] : O; V; X- H; u2 u I5 c公仔箱論壇[attach]1486504[/attach]5.39.217.77:88984 ]" x$ i9 y8 P [attach]1486505[/attach] 3 K: ~& c/ r4 X5 u. k. b( ]8 G. Z8 M5.39.217.77:8898公仔箱論壇) A1 ~; _) j* `! }" c2 V 作者: busyfun 時間: 2011-10-4 11:33 AM
