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。* `* a0 j! l( g) z) t* q
. I q( K1 C$ e2 yIf you are not a Physics person, read on and learn a fact of physics.
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! _; x2 d6 ]/ i. m8 @7 p) o/ E公仔箱論壇Even after you see it, it is still hard to believe!公仔箱論壇1 \: q1 C) E. A" X, ?
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 0 Y9 C" _4 c. ^. C. [2 m
This 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。1 H$ w* ~, c% G& S/ C
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
5 r1 |0 N7 `- g0 }www2.tvboxnow.comTo 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。, I1 K- [6 X; G& f4 w
, v, [4 j4 I2 _4 H0 B; H# w" F4 D# rQuestion:公仔箱論壇7 A9 G. |' E' P# M, j/ X S/ {2 V
~% Y; M: J+ Gtvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
+ h7 I9 l$ H9 ?9 T1 z, U1 nOr just the weight of the water?
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- F) h( S4 U1 b/ U3 `Answer:! g0 M3 Z9 ], u3 u/ y; h5 g* R
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It only needs to be designed to withstand the weight of the water!
& C' }# m8 c9 ~+ ]& C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 loadedwww2.tvboxnow.com! J' C; J% c2 D& S. e+ q
& r5 y p7 W: H: ]1 r1 @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。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) a5 M u! Q+ N* o6 N
The Incredible Magdeburg Water Bridge in Germany
# G9 d _, n5 o" V' `3 e1 y( @4 uThe 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.tvb now,tvbnow,bttvb q# Q4 ]) {+ 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. 3 S8 l! b% K1 X0 e3 J( \& P0 p7 A
+ K9 V; U+ Y4 |0 D9 j; B# P, V5 k" 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。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. 公仔箱論壇6 F, Q9 H! Z' ^- S5 y/ N
; e7 O% ?( D1 \' C6 n l) y公仔箱論壇www2.tvboxnow.com/ F2 r/ f+ R! D& d' f5 u7 }
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i/ ?5 L- 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。
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