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。2 k% E! f5 A1 O0 o1 z. }" E
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If you are not a Physics person, read on and learn a fact of physics. / L$ U) W6 Q# t3 H+ h% Z3 ^
AMAZING! ! ?0 j; \& @6 N' B! Z# e
5 [& b( h: ^$ ^ {tvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!
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9 o) O+ I- ]4 X6 p( ]) l; @5.39.217.77:8898Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
6 M/ j/ [( p% q( 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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 6 t, v- v a, v0 L( y7 S* ?
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
) Y5 g: y2 v( E$ _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。To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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# M2 J/ |6 w- G0 x/ ^( N; g# UQuestion:tvb now,tvbnow,bttvb0 j3 _- J1 ]3 f2 F
4 u0 k. p9 b8 n' w) \) H 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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
7 g5 n: s( _- a) ~公仔箱論壇Or just the weight of the water?
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Answer:
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It only needs to be designed to withstand the weight of the water!
0 m" p! A w2 J+ |1 oWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded1 C; W. t+ y" I7 U
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' B; r' x; A1 q2 ~8 {5.39.217.77:8898The Incredible Magdeburg Water Bridge in Germany3 W, ]& N6 e, }' T1 `
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./ r3 |0 d. I$ ^& i$ n. C
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. * F$ e. Q6 C. `
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" e8 U$ ~8 s: 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。5.39.217.77:88984 a% O, B/ }7 Q
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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。, s- \+ L# P0 F& A- \
發表於 2011-10-15 09:35 PM
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