本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
/ |4 w. |3 M5 Y" i! ] y5 S( q; zTVBNOW 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。5.39.217.768 O- B7 v1 h/ U3 R; k
If you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb6 o7 s& A1 y/ R0 a
AMAZING! tvb now,tvbnow,bttvb. m& x# [8 v+ r( k5 v u
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: h/ C" R4 k
Even after you see it, it is still hard to believe! A) ?7 F5 c# W( X5 \* v9 P3 h
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6 d& ~% K" U" Z+ ]1 c7 L5.39.217.76Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.764 s9 X' I: p/ a
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
' {, Y: B; K HIt is located in the city of Magdeburg, near Berlin.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。2 ?9 R" d0 q) s# p: |/ u
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The photo was taken on the day of inauguration.
8 g5 Y3 L+ s3 k; l! v- D5.39.217.76To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.7 ?$ u7 `$ ?+ \4 Y- [
! d" S% U8 e/ CQuestion: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。/ ?, b' _2 h7 T) h% ]# s
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb" T; `" k- |8 b7 s, j
Or just the weight of the water?
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Answer:2 D5 a7 P& z9 l) y
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It only needs to be designed to withstand the weight of the water! 6 [8 b. a9 u+ Q0 W' c
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
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The Incredible Magdeburg Water Bridge in Germany
! ~6 J; B8 |: }5 utvb now,tvbnow,bttvbThe 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.公仔箱論壇* {( b# y) ]; |) {" m5 s
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.
6 O/ \# r3 w7 I; YTVBNOW 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。. c% P9 P2 k- J4 E. C7 j6 | e* O% 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 S5 D% @* @7 Z& L' I4 ~, S
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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。+ G* S: K: Z( ?* `8 L! W: { T
# t; m9 W# t4 ^: y5 g' _+ S/ 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。5.39.217.76) _* t1 Y2 Z; I4 O' x
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