本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 公仔箱論壇. G4 u" m+ P: m# n a9 C' L( s0 H
' s, I1 {$ C; X# [0 _tvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics. 9 g1 T2 ]$ b n; V& i
AMAZING!
7 c# r7 V, e( \& ?/ X+ B1 RTVBNOW 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。8 b0 r) ~6 D; |
Even after you see it, it is still hard to believe!1 K1 X0 G4 Z4 g
tvb now,tvbnow,bttvb: G& h2 ~$ j& ?2 A/ q( o8 E
( b( Y# A' _# p0 E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!
x; Z: Q; a( O5 U* t% Q5.39.217.77:8898This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
" h% j, |4 i/ ? f' d0 A& FTVBNOW 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.
% {4 W# S; J4 Z1 y4 F c/ T+ Z& X# sTVBNOW 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。! w7 D: X( s- {5 c$ D
The photo was taken on the day of inauguration.
" t( E: O/ g9 m5 c# W5.39.217.77:8898To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.77:8898' z- {# p9 q4 Q! O% G4 m
x, O9 m5 e+ N J公仔箱論壇Question:) a4 a9 a* e) `3 ?; ]# ]
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。* r2 b6 X3 n# k+ b
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,0 {2 b9 h/ Y- K/ ~, [) B0 a X
Or just the weight of the water? : X4 c/ \. l8 B. N4 U `# p
tvb now,tvbnow,bttvb- j' }8 ?' \7 q, y4 e' u6 y1 r
Answer:公仔箱論壇4 I% o1 I6 O9 P/ K" A5 F( J
tvb now,tvbnow,bttvb* d+ N# G' ]' U$ U$ J3 `, `- ?8 U
It only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb# b5 x# n1 E5 W% R
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.77:8898$ ^' m c. k* a8 ?( K) z/ u
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。$ v5 t* s8 o: s) m- x- @9 `+ S
公仔箱論壇4 S* I* U7 Y' X4 u* V' B4 V1 F5 o
The Incredible Magdeburg Water Bridge in Germany5.39.217.77:8898# @+ H2 D1 Z* C
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.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 e9 g1 _5 Q7 p4 A5 E
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. tvb now,tvbnow,bttvb* W7 A8 r; @/ D; T/ f0 B
4 G& Y0 s+ B- l1 n9 n# gConstruction 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.
; C, A' z- _* Q5 u/ M5 r. y公仔箱論壇公仔箱論壇9 ?. E, b8 W% l- Y& n0 G
1 M( _+ o: i0 L6 U* \tvb now,tvbnow,bttvb
! ]4 }7 ]/ l) x% B5.39.217.77:88986 K9 O. I2 f+ I+ S
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 M: f1 J2 Z7 m4 ?' z7 ]% v
, J, a+ B Z5 O9 h$ D- h( }
tvb now,tvbnow,bttvb' W, }# l/ j0 i
$ G2 p5 T5 n/ M+ F C( q2 C公仔箱論壇公仔箱論壇6 p/ j& ?+ b$ M- X7 R/ d
|
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
|