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。: r( R! |5 S) ? ]/ O6 V% o5 {8 M
: ^- a$ h3 q2 P4 }! K6 V. _0 lIf you are not a Physics person, read on and learn a fact of physics.
3 P7 g( S1 T, Ltvb now,tvbnow,bttvbAMAZING! 公仔箱論壇( _8 O7 w& U# p8 e& W: o, I* P) x
+ |# k( x9 |9 y% aEven after you see it, it is still hard to believe!
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: w: _7 B" K% B) L+ O- e) l& I) atvboxnow.com
3 m" C$ k) M& Z; L+ j3 C: mMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! % B( \+ U" w$ \1 @3 G! S
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
9 {( Z3 v) u; N; YIt is located in the city of Magdeburg, near Berlin.公仔箱論壇6 ^+ B7 O3 `) |. }% s& H
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 E: c6 s2 p1 m2 ^. Z! g
The photo was taken on the day of inauguration.公仔箱論壇+ A: [/ w/ Z- J/ b
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.: W- `5 x) m0 I
! X I5 S" G- g+ mtvb now,tvbnow,bttvbQuestion:; t) \8 Z) C- j ]2 U
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
/ Q( e8 H( z2 X; t6 _tvb now,tvbnow,bttvbOr just the weight of the water?
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Answer:
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It only needs to be designed to withstand the weight of the water!
8 S$ r$ ~( s4 U: O+ y( h+ T6 {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
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4 F5 T4 f. s2 n+ D7 R7 j: ?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。7 Y5 H" M! r5 `" v- G; o4 o
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。6 O( [7 t8 I8 t& h# b. \
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.
1 ?6 A) s# M8 ?, k+ p) ?0 x$ UThe 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. tvboxnow.com$ k) H3 I P4 Y+ Y5 v% U" o
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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.
5 a) M5 E0 N3 s* 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。; p, d( Z M) @6 ]1 R3 k
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! ]2 n1 J2 ^- K; ]4 Gtvb now,tvbnow,bttvb6 l6 o- G4 Z; o" l1 j7 ?/ J
! h8 x, l% |! B8 P Htvboxnow.com# B$ X2 U( R5 R; t# H
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