本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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3 E [8 ?1 k2 \$ a5.39.217.76If you are not a Physics person, read on and learn a fact of physics. , }# O2 |" c! e- G" @. g7 M2 R0 m h
AMAZING!
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Even after you see it, it is still hard to believe!tvb now,tvbnow,bttvb: S! ~- y9 e$ u+ n- q" Y1 o5 t# ?1 y
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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 h# C( |; n2 g$ l* Y# |5.39.217.76This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。' l* K6 Y3 u6 B1 p& }: F
It is located in the city of Magdeburg, near Berlin.公仔箱論壇9 _- F4 x1 b" x' }, `
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。: p; K# _- C! a! `4 `& h+ i$ T
The photo was taken on the day of inauguration.
4 I2 J7 v. a- C$ z7 M5 y! k3 TTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:
5 e4 l/ n- N; v/ y' G/ I* G2 F5 KTVBNOW 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 Z# i0 R# {+ p1 Z, 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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,1 f- U0 u% c: P7 N" e O7 d; |
Or just the weight of the water? ( s6 M4 p5 ~' n W' l! d$ `
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。. I" |6 ^" t% G g( s
Answer:9 ?3 }7 ]4 w1 h; T3 [8 F v
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It only needs to be designed to withstand the weight of the water! 公仔箱論壇- K- z: Y+ B8 g* [: 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 loaded
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7 E, o) ~2 g$ ^' D# M; r' |% j7 S5.39.217.76The Incredible Magdeburg Water Bridge in Germany公仔箱論壇2 T' D/ u/ }% J9 f6 b
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.
2 k1 L4 i' B. l% g4 Y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。9 z% Y# x/ l" [* t9 H p7 B, Y, w2 U
4 f4 @2 R/ N# [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。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. 5.39.217.76# c6 f- J) R; k# V3 ^
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" y% B3 T# v; N4 m( r/ `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。
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