本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
% Z; P4 ?5 E" Z1 H
$ t7 u: Y# Y& q7 A1 r/ h公仔箱論壇If you are not a Physics person, read on and learn a fact of physics.
/ s; q7 Y. `7 f# M* l& e9 f" FAMAZING!
& r- _/ |8 P+ z1 R6 P$ r) B5 d/ _tvb now,tvbnow,bttvb5.39.217.76* X$ G+ S# X6 W; S
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。( I/ s! H, u( H0 e" v) N, N( F+ B
6 C: t8 L2 |4 J- f+ _8 i( p) v, Wtvb now,tvbnow,bttvb8 z4 f4 b* @0 o/ I( A- X
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb) a3 ]1 d* U* r
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇: e J+ r5 g& g0 Y
It is located in the city of Magdeburg, near Berlin.
6 Z% ]1 T5 V4 Q8 wtvb now,tvbnow,bttvb2 A0 T! Y$ S. I3 S5 g
The photo was taken on the day of inauguration.
! P% E! C" ?) D) `9 t( K' b ytvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
' @$ L$ L$ p1 y3 q5 ?7 o( ~5.39.217.76
0 m( G9 I5 }# m, Z% j) @Question:公仔箱論壇" A# C9 o+ a" I/ i& G7 Q
tvb now,tvbnow,bttvb3 D- A3 s9 v" Z/ S# j9 T
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
# Y$ r6 f8 f; Z; q+ {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。Or just the weight of the water? 2 c5 m2 a4 o# j5 Y0 \
) b) @8 g( f1 d. Y: q& lTVBNOW 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:公仔箱論壇; v" k0 p$ c# }
tvb now,tvbnow,bttvb- P0 J3 v5 g5 ~' B& E; z2 Z
It only needs to be designed to withstand the weight of the water!
1 M, p9 p, _3 ]9 B: Wtvb now,tvbnow,bttvbWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded, L b/ s" j8 L( O q/ l, S
, ? |' u$ ^! P. `; K7 K: x9 Q4 }
/ T5 `' T, a8 _# FThe Incredible Magdeburg Water Bridge in Germany
) N4 I( ]& j; _' L2 jtvb now,tvbnow,bttvbThe 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.
- C8 Q# j8 G" f( ?- L* `2 J5.39.217.76The 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.
* T. k% u1 _! W* jtvb now,tvbnow,bttvbTVBNOW 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。, m, z4 F) _# _* N
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. tvb now,tvbnow,bttvb5 ~8 _7 H7 j9 v, d
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。+ g* @( {1 C3 Y! ~2 O1 N
' |2 B% s% K/ d$ ?5 }公仔箱論壇
8 B8 f* y5 Q$ y4 A4 G8 r I( T' T# q5.39.217.766 c) Y. `5 [7 {* ^% q# a, I( h
tvb now,tvbnow,bttvb) E4 k3 X }4 Y+ E
3 o/ W6 w4 w8 {1 I0 Y$ _
9 ^5 I$ U4 }- y
4 ]; l5 z# |9 f3 b! c7 U( d公仔箱論壇) m: j. y* w- n9 X6 [: i3 g i) L+ A
|
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
|