本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
0 s4 _& X6 W- L! i: n0 A5.39.217.76, I" |. D5 Z$ }3 Q2 y. k8 J
If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇+ ]2 z1 B" D( k- x
AMAZING!
5 s+ s! v' y6 y$ bTVBNOW 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。5.39.217.76& T- Y! @* h' c* f0 w; w( ~8 j& s9 `
Even after you see it, it is still hard to believe!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 _: d" i7 E7 q
" O& W8 ?2 f# ^) s0 _
6 N: N0 }0 H0 U, a0 l, gtvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
8 H Y: t" ], S, i0 @tvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. tvb now,tvbnow,bttvb5 t/ v; S3 }6 R) N7 \9 d
It is located in the city of Magdeburg, near Berlin./ } }! T' C1 i# w0 O/ l
+ A9 Y; A U$ {公仔箱論壇The photo was taken on the day of inauguration.tvb now,tvbnow,bttvb6 k9 I+ w7 I' I
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.760 o' D% S- {4 Z- I `
" `3 ^3 J6 K' ~7 {( Ctvb now,tvbnow,bttvbQuestion:5.39.217.763 |( z7 U1 u1 J9 Y
0 [" q- H1 p( A5 A: F0 U+ otvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
3 ~( L1 c( x8 q# 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。Or just the weight of the water?
: x# y- Y7 o& ~1 Z2 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。公仔箱論壇- N# h1 i2 G" j! _3 O
Answer:5.39.217.763 G+ W5 w1 X8 B
2 `' {! G( i" P% q( O' F9 `% O( f9 a公仔箱論壇It only needs to be designed to withstand the weight of the water!
% ] Y1 c0 e- a1 `: ^- 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。Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedtvb now,tvbnow,bttvb: Z8 B6 b: s4 K$ b! v; n
公仔箱論壇# S" O$ M+ L' b# j
$ C3 N; p/ O% R) y) \
The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb2 [( o, h" T4 X X
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.5.39.217.76+ r9 l: \' g+ I0 N' P$ C
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.
5 o- l: C4 g( s8 r# Ttvb now,tvbnow,bttvb5.39.217.763 z& u% B8 l* o$ `1 [
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.
; t1 f1 T1 I$ W/ g% d6 K* F& X9 D, F* b, M" e: K" k; ?1 |
. \! H0 L& ?% B: s5 H& ~tvb now,tvbnow,bttvb5.39.217.76- P3 Y% l! T2 f, Z! U
' F' R; M6 p6 q4 s- j# N
) g, f1 B! E I$ s: dtvb now,tvbnow,bttvb
9 m& i/ s' N' o" Z. p: ?
/ u6 C8 Y% q4 u: a& g公仔箱論壇
1 m O: M, d0 Btvb now,tvbnow,bttvb5 f* z: [8 I+ F3 e) y$ J
|
發表於 2011-10-2 10:09 PM
| 
發表於 2011-10-4 11:33 AM
| 
e6 V4 X8 Q: S+ E+ f
發表於 2011-10-15 09:35 PM
|