本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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8 ~% K" @ m9 z' ?/ u2 ~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。If you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb3 ^0 }+ w- Q6 `3 n4 B- w5 {
AMAZING! - v2 @( K9 C7 |6 E* J" K& I
( R% J# U1 B6 @7 A; 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。Even after you see it, it is still hard to believe!5.39.217.767 e5 r: L7 N$ M% z) L
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.76# A# A, A, o O6 C
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
3 t; }( B9 m7 B8 Y3 s0 H/ z公仔箱論壇It 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。' F4 N9 }+ S, K( ~) N+ k
7 V) P5 C- j8 f8 W/ w! y$ eTVBNOW 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 photo was taken on the day of inauguration.% |) v- T; Q5 ?6 ]& W% M
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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/ S/ | c: F# Z$ [: }3 zQuestion:
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4 u9 H! c% a; N6 k5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,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 ?5 s3 C& \, e3 c9 a+ L
Or just the weight of the water?
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+ Y. ?7 U$ |# ^7 Q5.39.217.76Answer:公仔箱論壇) W; F# s% p& x% K$ y! y- u7 i
7 {0 [- p$ } P8 K+ W' C: `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。It only needs to be designed to withstand the weight of the water! 5.39.217.76- G7 y0 G5 K, V. N1 E0 N+ v; L
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.767 B/ b0 }# @; I
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- o! j: l* X D# r/ I$ p4 I5.39.217.76The Incredible Magdeburg Water Bridge in Germany4 G: ~/ _/ [$ Y+ X
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.
6 R( g+ t# ]' gThe 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.
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/ ~+ u: q- c$ y" x# O% 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。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 f% j% q/ m; t% l3 Q$ ~, }
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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。1 A3 L1 H1 @* E& ?* k! N
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