本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 ) p9 Z$ u4 J" E* F
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If you are not a Physics person, read on and learn a fact of physics.
. l) }& ?% \' r' Q' 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。AMAZING!
1 t& E1 j E5 ?% R/ R# b5.39.217.77:8898TVBNOW 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。; H% Y! ~' `+ n; F, L7 j
Even after you see it, it is still hard to believe!5.39.217.77:8898: g% D, u G2 V& C 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!
4 t2 n0 W2 X" W( |* k# M% ^5.39.217.77:8898This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。9 y. w+ ?1 _" Z- R8 o9 f1 [
It is located in the city of Magdeburg, near Berlin.
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6 B; k+ a {1 r3 Ktvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.
e( W5 E. F+ ^: `; U0 ATo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
: Y# b4 t3 f5 y0 N$ hTVBNOW 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。公仔箱論壇5 o+ n3 D- C0 I* J
Question:
- P( R, X- W; G$ A4 _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。
) L' u, A$ n- N; q" Q- v; K% V公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇3 |( \$ a' H+ K0 u1 b
Or just the weight of the water? 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。5 a% f6 f) }1 w* i+ M6 P: d- T
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1 ?4 U2 y: I! h2 a/ s* hIt only needs to be designed to withstand the weight of the water! 8 k# n* u; ^& v- h. w# c
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
2 ^% X/ u; v5 q( T E4 l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.公仔箱論壇, R' v- B3 r2 @) K; [3 n U
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. : p) E$ [' \3 O; C9 b, O; L* M3 E# s
, m9 ]: `7 L- g+ [& ]+ i2 g: i3 ]7 Otvb 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. 公仔箱論壇5 G. U( }* l) R9 `, n1 w
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