本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 公仔箱論壇/ I& D @7 |& n/ G3 `
& {9 z; l. n4 }# l8 d* B5 T5.39.217.76If you are not a Physics person, read on and learn a fact of physics. $ S8 {" }" [& u+ J& \1 S u; [
AMAZING! 5.39.217.761 J# t/ h% l' D3 {- V* Y: u4 W% C
8 w( m- D; t# c+ r- zEven after you see it, it is still hard to believe!
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8 W3 o: L. ~ U: B; `5 v% DMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
3 o2 g3 f: G& o( M; R% V6 jtvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
/ u! S/ r1 G. T: b5.39.217.76It is located in the city of Magdeburg, near Berlin.' K& Y3 o/ F# L% a/ X! H" W5 \3 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。/ e' j" b/ p4 U9 d$ h
The photo was taken on the day of inauguration.
' G! h4 \" N9 h k( ^( |To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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。' k7 T2 ]9 Y4 l) ^# B' G0 q: 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。$ J% N* ~3 Q3 w& {8 {$ B- w
Question:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
! K- N7 ?# L C; q8 n/ {5 h公仔箱論壇Or just the weight of the water? : M, {" t; Y0 E5 L
. y. u, v7 w) P- I7 y公仔箱論壇Answer:
! K% g- Q; u8 _# ]; i3 H2 {tvb now,tvbnow,bttvbTVBNOW 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" C2 ?! L D% }' m0 e
It only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb: ^4 i0 h/ y- ^- N. _2 a
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# t: F6 {( j. d% Y1 A9 ^) q
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+ Q, |: J2 p K8 W' p5.39.217.76The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb; K7 J1 C% { M/ c# f9 P! m6 m
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.tvb now,tvbnow,bttvb4 h, l' ^5 E- L: c7 C8 k3 i
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. 5.39.217.764 t$ P0 P& t% {( q
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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.
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5 x V$ k$ e' Z7 T3 {- [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。1 B& [) \0 x7 T# N3 X) t6 f2 N0 W
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( x4 t0 [! a" z; ~5 Y9 X5.39.217.76公仔箱論壇& X! ]: @2 H4 B/ B
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