本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb" K+ c( { Q# l1 u0 O( W
AMAZING! 8 A8 E- n/ }* f. r" E7 @
- D( l4 R5 K' D( P$ `www.tvboxnow.comEven after you see it, it is still hard to believe!- l, _5 R# ?! p$ w5 z
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。* J0 e C* i/ k3 t* e- R& o
( Y$ ?+ ]" Z8 G( M. v# iwww.tvboxnow.comMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! : E6 m# u5 X+ f4 ~
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
1 R; I B% b) o& O4 Wtvb 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。, u8 J2 q# B# y4 g) D
3 g* ?# M7 u3 x- U& SThe photo was taken on the day of inauguration.
7 B* i2 Q! a) g3 t- q. Lwww.tvboxnow.comTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.www.tvboxnow.com# a2 [. b, F5 J; B V+ t: i" I
d- t+ y& W; \" `' kwww.tvboxnow.comQuestion:tvb now,tvbnow,bttvb. q0 I/ D' g! {) A, i6 z- {9 H$ K
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
: }. m( ^$ u5 [7 u( a9 rOr just the weight of the water? tvb now,tvbnow,bttvb1 x' H7 O5 i6 {+ q6 F0 c) Z d
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Answer:
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: e9 y4 z3 _* |$ |( Atvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water!
* y8 u Y- \2 n3 U3 b7 [9 d. x8 xwww.tvboxnow.comWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded公仔箱論壇6 L7 y C a. n* |! _6 U
. N0 W) Y, \. B4 j. p公仔箱論壇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。2 | d; f# H, P: c
The Incredible Magdeburg Water Bridge in Germany公仔箱論壇2 S+ L2 n ]& e
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.
3 ~4 F4 A- ]# y5 T: S0 t* i& p& Mtvb now,tvbnow,bttvbThe 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. tvb now,tvbnow,bttvb5 @# z* e1 q6 K" q
, |0 h' ^* Y; u& o3 y! Xwww.tvboxnow.comConstruction 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. tvb now,tvbnow,bttvb" G" V3 ^; B9 J8 p0 i- [5 g
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9 x$ P. l' O4 s1 k1 m, ?! DTVBNOW 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9 ~8 {; o/ Q& v' c' Z- I! T
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