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 " f" V, n% c& d9 [tvb now,tvbnow,bttvb公仔箱論壇+ w$ Q% C d: ]1 F, R( z6 Y
If you are not a Physics person, read on and learn a fact of physics. # s3 P$ r" ?( sAMAZING! 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。% A$ {' D5 r4 N( T1 u tvb now,tvbnow,bttvb* o% M- L' u, ], b2 p. S, q$ x6 A
Even after you see it, it is still hard to believe!; j; ]' i: u8 }3 M) t4 ~ [attach]1486499[/attach]5.39.217.77:8898# K6 ^, v: W) w# @9 |% Z; n: u+ I" v
, D' b5 M9 F7 i1 |. \tvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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。7 S! A: q5 `5 J6 V- T
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. + o# M4 t# J( N Ptvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin. 8 C) a) R- U( Y! p公仔箱論壇公仔箱論壇: Y2 T1 @0 e, L- z* A+ Q/ o' }8 [% b3 Z
The photo was taken on the day of inauguration. & f+ h3 {# l) }. Y: n; I6 D5.39.217.77:8898To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. 6 C- P& o& Q, m1 H' Z0 ?tvb now,tvbnow,bttvb ( Z, j& |( j( Q6 z: C. d8 ?4 oQuestion:tvb now,tvbnow,bttvb3 ~+ s6 n1 b0 `2 C" k& L7 P6 w
+ ^, s0 q6 }( n# e5.39.217.77:8898Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, 9 y$ Q5 E. l$ b0 zOr just the weight of the water? 9 p7 L6 @ P5 _- h# |tvb now,tvbnow,bttvb. T" j; ]; M$ @, w' I& l% R
Answer:/ \5 ~! j" W" N) l
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It only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb! o7 a) V* l' {. k0 l6 u$ b
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 % Y7 q i5 }. Q) g7 p+ C $ h9 @6 s$ @6 M# {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。4 B$ Y9 g8 K! H- E0 e1 Y3 v The Incredible Magdeburg Water Bridge in Germany : D+ C& }( C! t" P: FThe 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. 1 f& B$ ]7 s! x- j4 w, G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. 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。5 `$ a& P3 ~/ o' w* }
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。% m3 R" f2 Z! ^ _) f
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. 公仔箱論壇. W% C' c* J, [; O4 w0 n
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