本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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; ^4 l" Y. t% F j# s; ?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. : D: _+ F% G0 W% U1 [
AMAZING!
5 b, A% I3 s* I! oTVBNOW 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。+ R4 g5 L) `0 P2 C& i
Even after you see it, it is still hard to believe!8 p5 ? y. B' z3 l* O
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.76$ T! R% {3 z9 U: D% J* f
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. $ g2 b$ t' S& k7 }
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
0 { s. O4 \2 w+ HTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. |# a- a1 ]' m2 W) G. p5 p
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Question:公仔箱論壇& v y& z; ^+ p# a( \# ~/ W" u1 w
' D' W r: ]! c8 {) Q9 TDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
/ ?# K! R( \/ J/ Dtvb now,tvbnow,bttvbOr just the weight of the water? 5 A" \& C" l# E* b: w( l. h
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+ ~3 d u+ r, z2 E [
Answer:5.39.217.764 u$ M& ]5 |1 f/ ?
9 y# f+ m9 q9 [1 D5.39.217.76It only needs to be designed to withstand the weight of the water!
4 a! c& L: r) ]& R7 {: x" [1 Xtvb now,tvbnow,bttvbWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded公仔箱論壇3 Q$ d% d: D8 J+ z5 `1 v# h
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。: y2 G4 t$ c, D2 G. ?& }. e
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The Incredible Magdeburg Water Bridge in Germany
0 J/ v1 a7 C# N8 o/ YThe 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.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。! {' k2 g0 s9 I1 G+ j* V
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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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.
$ ]: @ ]% q, ?2 [6 J+ pTVBNOW 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。
. S' D" b4 q3 [, Gtvb now,tvbnow,bttvb5.39.217.76& S6 H( P: ?" c6 g% m2 F1 X6 s
. B1 E- t* D- ?+ E. m* 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。
* Q+ a. e7 ?( q- t* ~: k1 k8 p公仔箱論壇公仔箱論壇. O6 t, X0 X' v1 P0 G
公仔箱論壇8 R: j7 w" x: W( j5 Y9 A& @# s
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( r/ I$ r* {$ W( W公仔箱論壇
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