本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 tvb now,tvbnow,bttvb* `# k4 x; k+ D8 b. A) E0 Y0 @
8 ~. d/ [4 @: }! S' P
If you are not a Physics person, read on and learn a fact of physics. os.tvboxnow.com/ j! ^! S0 `& ?2 x9 I0 x
AMAZING!
' z. Q# V( S* u3 y1 ]' ^8 T. Q. L# ^7 U) \ @3 B7 I0 j
Even after you see it, it is still hard to believe!
( s% w7 G% }: H. `+ ?" m& I6 x2 e' \+ a( F" H
+ s) q* p$ V; ^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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇# B& I. ^8 c8 D1 Q
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
8 Z4 L' [: O: i3 H/ y# @! _4 R公仔箱論壇It is located in the city of Magdeburg, near Berlin.公仔箱論壇( V0 _' J/ z& [" |/ P
tvb now,tvbnow,bttvb6 P9 ~" q! o3 B* \. [5 I
The photo was taken on the day of inauguration.os.tvboxnow.com0 U( O6 d6 c4 _# k3 @+ m
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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。 j0 I6 `6 b' _
# _6 S2 x; H) _! k: sQuestion:* n' w) x4 l. X( H4 J
os.tvboxnow.com" g6 t2 ?( L! @( F! a+ D2 {4 V
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
1 y2 F+ j$ g: a# z* F/ U* Gos.tvboxnow.comOr just the weight of the water?
b% h6 S7 A+ S
- z0 }' M1 n, R6 ~7 t) I' K( _tvb now,tvbnow,bttvbAnswer:
5 q8 V- X# v3 ftvb now,tvbnow,bttvb
* R( ~( m4 q4 |It only needs to be designed to withstand the weight of the water!
6 N' g9 r8 Q6 j- Y- E. P* sWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded1 T5 T- h6 A7 d) @
os.tvboxnow.com$ @1 ]( g* { k' N# V) Z
, }. J0 x! H4 z$ x6 qTVBNOW 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 Incredible Magdeburg Water Bridge in GermanyTVBNOW 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。% {1 f& n3 t9 ?, V. |$ P
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.
0 v+ n/ V( z% k, w4 K6 P9 k4 t4 ]os.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. % V5 K/ ], V" H# ?; A: ^. e
% D8 \: N1 z9 z8 v aTVBNOW 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。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. os.tvboxnow.com9 O4 J* p/ A! \) t! `; A! E9 |
os.tvboxnow.com* P w- F# ^8 s8 y
5 {$ c7 r+ }+ s! ^
3 ?( A7 _, f; D1 S. ~2 S8 |* `
0 ]/ p; Q1 g' A; C$ s8 ]( R
$ w2 r; I h# B, p/ 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。
) _+ t( {0 K) q9 K' k8 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。os.tvboxnow.com% h1 y( j" R8 _4 s& v
5 @7 A/ ^8 Y: f6 |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 W- ^- l" B6 Q% V) 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。 |
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
|