本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
$ V) z# _6 U# O5 h5 W6 _/ [/ g2 O I1 r2 n, u
If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇0 s+ ^3 b" N- V
AMAZING!
; }$ {3 W8 U6 {! j. B* Itvb now,tvbnow,bttvb
: j& K; t, R) [2 E. uEven after you see it, it is still hard to believe!公仔箱論壇# Y8 p+ C4 E0 W; Z/ Q# ?. w
, A$ [/ h2 M/ K% l. X
2 U& X+ v% Q0 e$ f4 A7 y0 p$ v @公仔箱論壇Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 6 X/ C( m; v3 `( F# J* p
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。; o( b& ?. z' u9 v3 u2 L
It is located in the city of Magdeburg, near Berlin.5.39.217.77:88989 X. l! X( E) x/ d- t( J( W" T/ `
7 Q; R' C9 Y$ x0 |( l
The photo was taken on the day of inauguration.
" c0 J4 R: D, R! ]( e- KTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
( E) Z2 V' c. i2 E& q- e5.39.217.77:8898tvb now,tvbnow,bttvb" S; |; Y) A$ p' E' l
Question:
" v% c% F1 k: F# ~6 `tvb now,tvbnow,bttvb- T; p6 W7 U3 x$ z
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
: r( ]0 ?/ f( Z( Z# y2 x, b0 w" u- N* QOr just the weight of the water?
+ ^' g8 j" M3 ctvb now,tvbnow,bttvb% T3 g& r. _% N* q- e% `! t& n
Answer:
I, L1 r! k/ P: Dtvb now,tvbnow,bttvb. [; V0 F4 Q% `* w$ y/ a
It only needs to be designed to withstand the weight of the water!
- h) V# P1 K9 V8 i5.39.217.77:8898Why? 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# }8 b0 A. Y4 m6 Q
$ m) K$ y5 z6 l4 s公仔箱論壇
/ }* c$ R. f0 K4 Ntvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany
, B3 `+ x+ r4 ~8 d8 ~0 ~/ kTVBNOW 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。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.
8 \# J- x1 E3 \. I0 ntvb 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.
( \4 T4 j. ]. r, x公仔箱論壇
. S) d5 x0 f) e" _! d9 YConstruction 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. 7 F; g5 @" O6 m; d8 H; K9 o. i
7 G6 E3 J5 }7 y( \5 z9 H
" h: k9 W' M5 J: O1 K I
7 i' W1 B+ H0 b, F2 B1 V3 S5.39.217.77:8898" e# _- k( y6 Z, O V2 M
6 v& l* c2 I$ Z! W6 u8 f0 k$ nTVBNOW 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 O' `" i8 X: L2 ] Y5.39.217.77:8898) V, A% ?5 P2 k3 m$ y9 ]( U5 E* R2 |7 g
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# j+ }3 E' K) p; w4 V
$ w" I5 n _9 |- v/ | |
發表於 2011-10-2 10:09 PM
| 
發表於 2011-10-4 11:33 AM
| 
發表於 2011-10-15 09:35 PM
|