本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 tvb now,tvbnow,bttvb5 W' d$ y/ a2 c. Q+ N! r: ~
- `+ u. A! ^. m8 _公仔箱論壇If you are not a Physics person, read on and learn a fact of physics.
" J0 P! o- s% x9 a! D! S' E+ Y }AMAZING! 公仔箱論壇9 G& r+ b7 _: J
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Even after you see it, it is still hard to believe!
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( v, d2 E% m; K+ Y$ h) W0 g6 Utvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
% c, K ]" }9 B5 g4 W8 S aThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
# O3 ^5 Q1 ]2 D+ I3 e: C- {* N. PTVBNOW 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。It is located in the city of Magdeburg, near Berlin.5.39.217.77:88988 l7 {) c( D0 B5 e1 H
) @ `& {. | j+ U: F) RThe photo was taken on the day of inauguration.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。" s. s* v# e! [* J% N( s+ q& R
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.* f! E) E5 n% v& s4 T
+ y1 T2 F) n7 f" v* k+ W4 @tvb now,tvbnow,bttvbQuestion: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 w3 L8 M% a- c* v
! a; ]. u7 V7 o( H2 i5 iDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.77:8898% D8 L/ |0 r+ Z5 X) Z
Or just the weight of the water?
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{" N& L4 \2 D+ S: [+ X& U; B4 {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。Answer:5.39.217.77:88989 R8 U+ d$ F3 t1 I/ f2 m
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It only needs to be designed to withstand 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。9 Y5 x/ l) A6 g, ~
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 GermanyTVBNOW 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。) p2 G) m" R4 J8 e) K( \9 K
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.tvb now,tvbnow,bttvb# c" @1 P4 a) {( d7 O$ I
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. P5 O, }0 E' _/ z4 }
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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.
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