本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 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 X0 u: s( e, w8 y
+ Z4 C/ \2 l, ?: t8 \: }- k公仔箱論壇If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇; H/ Y0 a; ?+ l4 ]# l
AMAZING!
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Even after you see it, it is still hard to believe!公仔箱論壇, R& ?* U" @& R2 h% ^( I
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9 ^4 r$ }5 g" s% _- k. ~$ X: ktvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
3 n: u. ~2 }% V b+ ZThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇8 P9 o H- m# {) L
It is located in the city of Magdeburg, near Berlin.& p, }4 A5 x @, \# y P0 t
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- F* f- D. ~2 o9 `# |2 m
The photo was taken on the day of inauguration.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 {" ]* @ C% M' F6 T4 C
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.76, l3 ]4 b0 {/ S+ _; _* u+ W
+ c5 F$ e5 q- d0 C4 d m# ?: @5.39.217.76Question:; f) D. X- A, |! s/ ]
! t7 q7 _; U; P D: c. I: ]& `+ Z公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
4 d( A' T0 O; u3 S3 B/ }Or just the weight of the water? 公仔箱論壇* e3 j' n' Z( R) C/ K" z% N
7 l' y' x( \% V" F) w' u- KAnswer:tvb now,tvbnow,bttvb# t& K: u. X; F
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It only needs to be designed to withstand the weight of the water! 4 l7 Y0 G8 a4 l, N1 |$ O
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
! `7 m% c6 h" k; H3 F5.39.217.76The 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.5.39.217.761 B' _9 {! {" f7 e, Y1 d8 ~1 G
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. 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。& |0 Q8 c5 `2 R) o
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8 S5 o. C/ ?; O( F1 fTVBNOW 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。( A+ z% e4 w5 r `
( Y" v+ A* l# [& ^! _: S# 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。
5 C$ j3 |. R! m* O1 f" CTVBNOW 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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