本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 公仔箱論壇0 O. m; h. ~, J% U& Y3 ?
5 b2 ?/ \5 \ q( Q4 F X. btvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics. 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。7 n2 e5 R, }* w; K5 z; h
AMAZING! 0 n) @: w' y7 j- ]! F0 D
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Even after you see it, it is still hard to believe!
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% F; M! c* h: b2 C2 y; z! iTVBNOW 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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! L$ P/ s( T1 M3 L$ |* `
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 7 u' M' g& n8 G! z) X& Q" }: N! N
It is located in the city of Magdeburg, near Berlin.
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6 v" G' B) I: K: r( J5.39.217.76The photo was taken on the day of inauguration.公仔箱論壇0 k4 R: i; U7 @0 U& O
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。8 W# E: X* j8 D7 ~
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Question:
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) A: L7 W& [: U+ {5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,1 ]; U( \3 g3 U/ ]- p" [
Or just the weight of the water? ; o1 f7 C3 P, z3 ~3 ?$ w0 c- w
, \4 u4 \* M3 nTVBNOW 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。Answer:
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It only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb f# u7 d2 b4 `2 y& D0 b
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公仔箱論壇: B) M: }9 N4 ~( _4 s8 |# @
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" B5 L8 R# s( s7 G3 A- L. U* I8 r公仔箱論壇The Incredible Magdeburg Water Bridge in Germany公仔箱論壇, _% d' \1 |( J0 A
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.
( W7 h! r' o3 ^2 k+ O# y' STVBNOW 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 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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- T, u+ Z# D6 A& w. i* G6 GTVBNOW 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。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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$ `3 `$ x0 `) E% \0 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。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。7 W8 U+ I' l6 Y U$ e8 {
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% W* N/ B) O i* `! R6 T" U: n% l
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( o. M& f9 V! N" A+ ]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。
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發表於 2011-10-2 10:09 PM
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發表於 2011-10-4 11:33 AM
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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。$ y* o3 I. F" K) P W6 N6 r
發表於 2011-10-15 09:35 PM
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