本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 ; l& W3 [7 O. P$ U; ?
* K& }/ X) E1 U) V' v z$ Z* @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。If you are not a Physics person, read on and learn a fact of physics.
! I* E7 ?$ r, g- q* ]5.39.217.76AMAZING! 公仔箱論壇5 x: B. v7 B. {1 i& j6 y' Q
8 ]7 H+ H" |0 @. F: C% q9 jEven after you see it, it is still hard to believe!- m5 T7 E' o, l
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" U- ^- G, h& g+ X$ ~1 Y5 w H8 u: Q3 fMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! # C) W3 T% @+ f+ H, Q+ |4 Y; p! c
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇3 P) V ^& h( K, ]4 O6 W
It is located in the city of Magdeburg, near Berlin.公仔箱論壇- t) b; b, M/ {' w9 h
* S( j% \: V- o. l1 vThe photo was taken on the day of inauguration.
0 r) C( T$ t& a3 j2 N: r* Q公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
0 ~, S, x3 Q1 O0 K0 Q公仔箱論壇公仔箱論壇. [3 w% v4 T8 b2 C9 }
Question:5.39.217.76/ u0 }- J4 g8 q4 }
1 n- b) p% N5 aDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
( `# u! Z+ i4 J' N, \公仔箱論壇Or just the weight of the water?
% w, m/ J% H4 P- wtvb now,tvbnow,bttvb5.39.217.76/ F& G3 |; j. `2 F
Answer: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。+ K8 i& E* N G, R1 d0 p
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It only needs to be designed to withstand the weight of the water! 公仔箱論壇8 T. U. O" `7 H
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedtvb now,tvbnow,bttvb$ y" e' g8 [1 N* w
tvb now,tvbnow,bttvb0 q4 t: r) w* V( { z3 s6 Q4 [
. B1 W) j) B, S% W; R! q/ w( l3 x' K& ?, t5.39.217.76The 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。- o% q2 s6 m9 z' h& a
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.
8 a2 c* [ ?' G0 C- _5.39.217.76The 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.
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$ V b& T# M- b# I* t5 w2 b5.39.217.76Construction 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. & M6 p; P$ n; s$ B( d, b* b
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* b S% B" K9 e# Z) y# p5.39.217.76
# R" @1 P+ D7 c, NTVBNOW 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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tvb now,tvbnow,bttvb, A: [& t+ y% F: w, t
- b2 [; P ]# A( r8 n. Z0 Ttvb now,tvbnow,bttvb3 U; m; J& D8 z
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