本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 5.39.217.769 F/ ~3 X; X: v+ H m: E7 L" y
; U. x0 R" _ c" [ m" _tvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics.
$ ?8 d- z( R. i: F8 d7 n公仔箱論壇AMAZING! ' q d5 f- `; b6 N* N
+ Y4 g/ x! E& F# V% [* C$ R* d5.39.217.76Even after you see it, it is still hard to believe!
1 b) Y4 N0 v/ a. o8 ?: }: @4 stvb now,tvbnow,bttvbTVBNOW 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。! p7 ]. o C) E6 k' Q
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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 E L; d j. P
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
1 Z m \ F$ T3 D- S" W( |" Xtvb now,tvbnow,bttvbIt 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。- J ^# G7 E, G7 W
4 k3 W4 r2 ~9 f! A4 R4 ? QThe photo was taken on the day of inauguration.公仔箱論壇, t% l/ h' n8 @) s4 I
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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# _, F. P) {# ]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。Question: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。! D2 _3 ^: `! }) o; o6 Y
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。. }" ]; ^" d7 R2 s* |
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
: C8 l7 ^3 S9 R. P$ d6 m$ aOr just the weight of the water?
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Answer:
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# Q6 y9 v5 y9 H6 I1 G1 zIt only needs to be designed to withstand the weight of the water!
- B7 W. z% d1 B# ?& X& K公仔箱論壇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 X# Y1 r7 W! C6 ^" jtvb 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.
) r* p8 K3 {: q2 w: p m公仔箱論壇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.
- q6 [2 }; a4 \2 A" 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。
$ a' V' Y( L' C9 X/ p: E/ S5.39.217.76Construction 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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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; O) U' F- R+ R' }3 o
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