本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
F; l5 Z; M8 _公仔箱論壇
' | i' Y& A, b, E' I7 `) z& 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。If you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb+ ?6 t, s4 m$ o4 P( i4 c
AMAZING!
- q" b, e) A& X" S2 gTVBNOW 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。
+ S1 i. r4 V9 v" o8 ETVBNOW 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。Even after you see it, it is still hard to believe!
5 Y+ h1 C9 F( r& q7 v# awww3.tvboxnow.com
/ H- t; X7 V. Q+ 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。7 y) _; ` x* y; \2 \$ y- r
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
5 L @- i! _" X J* N0 @7 Wtvb 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.
: g$ p0 d8 j0 e- l* E5 s7 E( t& M6 LIt is located in the city of Magdeburg, near Berlin.
) E1 e1 ^* y& o- E
% g" w) k& _5 p4 t- k# z5 y9 HThe photo was taken on the day of inauguration.www3.tvboxnow.com( R( i& u/ N: d7 x6 _2 Y& u* p
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
v% Y+ m0 l8 T) Y7 M6 P公仔箱論壇tvb now,tvbnow,bttvb* o8 H3 ~' E9 F7 D7 u
Question:公仔箱論壇- i9 s1 Z; c& J
% s5 k$ _4 i) |8 z7 B9 ttvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
! ^6 c. _& Z2 Z' z- qtvb now,tvbnow,bttvbOr just the weight of the water? 公仔箱論壇# {6 W# E C- }- {2 N2 l( F& @
* N# E( `7 J/ \0 {8 d
Answer: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。5 B2 ~7 w) u' T. ~
+ V/ a! t5 b: e! b" g. K5 W
It only needs to be designed to withstand the weight of the water!
, \& s' v8 ?0 n8 u- Ktvb 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公仔箱論壇( N5 l6 r( t. p
7 \) Y6 }! v/ i {2 o7 ~www3.tvboxnow.com
; ?- p4 ]% e4 S+ e9 sThe Incredible Magdeburg Water Bridge in Germany8 C6 x+ u6 i- w% i- I1 W" ~1 o# L
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.
$ [9 @/ u8 [) B6 v" l. dwww3.tvboxnow.comThe 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.
0 ~( I- x0 y) b. P公仔箱論壇公仔箱論壇; h0 W: Y6 F% } E8 @+ R
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.
3 t/ N+ W: ~9 k2 _* H( cwww3.tvboxnow.comTVBNOW 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。& ?4 u# l) Y* l4 V2 y& 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。+ I( i2 r% p) \( Q7 {& \- A- X7 u
8 M$ [/ G7 K7 p7 u- B2 u公仔箱論壇
+ H! s& @& t# }. L( Uwww3.tvboxnow.comwww3.tvboxnow.com: \3 }. e; X1 F9 B2 f) `- }8 M
tvb now,tvbnow,bttvb$ c# Z4 ~) r" [3 D/ a; ~/ J
" G2 {& N$ E% f7 W5 b% Zwww3.tvboxnow.com
! d, ]; z: p$ H- kwww3.tvboxnow.com+ U& x# Q* B1 F7 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
|