本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
0 [8 {3 B% o i* @/ ]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。
$ }: ^/ p8 v$ ]If you are not a Physics person, read on and learn a fact of physics.
2 n" \) ^5 J1 J5 E9 ]# RAMAZING!
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5 m2 L* O- M: Gtvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!
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+ s. d Q- d- k0 V2 m, o8 {. k6 UTVBNOW 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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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。) ]' i1 {8 _5 z2 G+ |
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
5 }9 h# S( R M: D% z; N1 |7 IIt is located in the city of Magdeburg, near Berlin., ?3 i/ W; H1 j) {, z G8 T ~
9 k5 }8 [# N& f: c0 ]tvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.
8 p l" ~6 o. J: [0 q7 O# Ytvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:
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8 C/ Y( L8 ]0 G0 x' D) ]# |公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
$ {" o9 `: O( D* F+ d- R% c7 k" bOr just the weight of the water?
) | H0 z# o" @. yTVBNOW 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 f5 l& N7 [9 m8 htvb now,tvbnow,bttvbAnswer:
0 i. m% y9 c! n+ W* O2 Q0 q2 D9 nTVBNOW 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。tvb now,tvbnow,bttvb1 t7 Y( I1 b& D8 q' q
It only needs to be designed to withstand the weight of the water!
0 _( e* b6 {3 O& Y; j' X$ `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 Germany5.39.217.76: g7 b* q2 s& b* D- G
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.
: i2 n) u: P4 J2 ^4 Z$ @: A, SThe 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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u4 t6 X6 b- ~; QConstruction 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. 7 b Y' e) V# W2 [7 b4 }! Q/ D
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2 f% X: o7 C2 }& R M4 ~, YTVBNOW 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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