本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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' L' Q" }- {4 m, V9 d2 y/ i% ?9 Vtvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics.
% B1 y; D+ k. Y. o4 g, A3 `. D5.39.217.76AMAZING!
+ }, Y6 ^ R0 p' 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。5.39.217.76) s5 I" J. ?7 y- u$ S8 y2 c
Even after you see it, it is still hard to believe!
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# i/ d. n( t" E; h3 r& l5 p公仔箱論壇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。6 e% V6 G0 g& @) E( T+ H9 _0 j
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
9 G: U w& A- f; j5.39.217.76This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5 l( n. \! R- A% G; G* w: `
It is located in the city of Magdeburg, near Berlin.公仔箱論壇$ g" ^8 B0 I! j2 `% |) @
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The photo was taken on the day of inauguration.
2 A6 d1 q+ Z% t" x7 O) W公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.4 @: ?: _% h, T' ~1 Z
% [7 Q8 K& R, i. K公仔箱論壇Question:
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5 a9 W9 g E8 } l0 Q5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
( n+ t0 Y3 z3 L8 I/ H6 K2 y& D- QOr just the weight of the water? * O. }, n, U6 b4 D/ R
& s- y: [/ C0 L9 E1 p! T公仔箱論壇Answer:7 ~9 l3 K0 J$ C8 m8 K8 o1 d
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It only needs to be designed to withstand the weight of the water!
, z1 J O7 r; _9 N/ H# ?, wTVBNOW 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。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
: [" x$ `8 V/ C7 J$ a: m3 GTVBNOW 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。tvb now,tvbnow,bttvb# b) N# h3 G0 Z1 _- {
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The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb; e( p5 l* n- l. n3 }# t$ O% X0 v
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.
k6 N* ^0 X0 d3 TTVBNOW 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。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.
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( l" s/ \; r {$ ]tvb now,tvbnow,bttvbConstruction 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.
2 c/ n+ ~5 |2 y) X公仔箱論壇
/ Z6 g+ \8 ?# B( 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。5.39.217.76- G0 W( d0 |& ~' i9 m# d: r& U
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2 p2 X2 S }& 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。公仔箱論壇! R6 o& x! b5 ^
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