本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics. ( V6 T# `) Y4 v$ }: o, L
AMAZING! 5.39.217.76- n# b* S$ U4 e3 v4 s
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Even after you see it, it is still hard to believe!
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6 Z, V$ T+ Q' U" `; z9 V5.39.217.76Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
. d& V/ Y9 _/ utvb 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. 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。5 k; c6 R8 m4 C8 `
It is located in the city of Magdeburg, near Berlin.5.39.217.76, H' x2 o7 g9 ^. _
N2 S3 N3 V& h' {9 x) {$ _- `8 VThe photo was taken on the day of inauguration.
+ V( ?+ f4 R* ~( a( t7 F: K公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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0 H" { L% [ h2 ^公仔箱論壇Question:! _* E1 c( R) {
' j9 _: q: d/ Z, S0 F& }, W公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,3 h7 M0 I/ G5 O
Or just the weight of the water? 5.39.217.76, g2 J6 s1 t2 O/ S( M
: D: Z# m; m2 QAnswer:
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8 H2 \6 N4 I7 e! S, q7 Z; D公仔箱論壇It only needs to be designed to withstand the weight of the water! 5.39.217.76* C% m% P. [ F, L! e+ k5 y
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
. n$ l: c& ~8 z+ LTVBNOW 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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5 p( s1 r( I9 j公仔箱論壇The Incredible Magdeburg Water Bridge in Germany
0 j) E& ~6 ?& l0 b# hTVBNOW 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 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,bttvb* q L6 e# \) ]0 S3 J) a3 V* X
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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! c& m9 H2 a. W; P2 B2 J3 v* g公仔箱論壇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. tvb now,tvbnow,bttvb5 K* n% s* m4 K0 }2 m1 [9 Q
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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。! @ {: {8 m( w" [0 U
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5.39.217.76% }9 X& E/ {+ P- T) \- h( y
公仔箱論壇9 l8 n' z! s4 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。4 P: n9 W: V" O
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。- i2 \( ?( ^5 o" V' D' D
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