本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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" e! `8 R" M2 ^ XIf you are not a Physics person, read on and learn a fact of physics. 1 e6 i! R! ~- c7 }& m& p0 q' f
AMAZING!
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' S, c6 s4 c* n$ s! qEven after you see it, it is still hard to believe!$ H: H. @9 S6 l0 `) O* |4 u
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! + j5 {+ R C1 z; [ i9 u- N
This 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+ j5 x; }9 B2 k4 E
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
+ w: }8 e) o+ Z: c; d4 `5.39.217.76To 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。7 V& L( z0 ~, f- ^% ^! Z
7 R9 d q' M& x' Itvb now,tvbnow,bttvbQuestion:
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) n2 Q$ x, a* W* {6 G/ D$ @+ a0 R公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
+ Z5 s' ]( b5 k% V公仔箱論壇Or just the weight of the water? tvb now,tvbnow,bttvb9 i/ h$ T$ @& _+ G7 q2 Q& T2 {
, i5 Q/ |' d1 `. v k公仔箱論壇Answer:
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X$ ^' }& ~/ T8 B7 p, ~/ y! i5.39.217.76It only needs to be designed to withstand the weight of the water!
& D4 {2 t5 @! h5.39.217.76Why? 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
$ T6 ^- P4 e0 Q j: g5 N公仔箱論壇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.
) n3 ]4 j& O) ]/ Z: g 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. 公仔箱論壇2 h" W) Z( \$ C0 v
! F/ g, h2 c5 E8 g5 |7 Mtvb now,tvbnow,bttvbConstruction 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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* a7 W/ K8 S: g; _9 b2 X" N# ?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。
3 ]) ]2 V& m) D2 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。+ |/ v+ x7 X" G( r! C: R
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7 g2 o6 H& b% Q6 P/ jTVBNOW 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 ^ E0 r1 p; [+ zTVBNOW 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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