本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 9 ?# o$ B1 o5 X8 E9 ~5 R
4 v! H0 R( O. ]% ?- T: @: t' D公仔箱論壇If you are not a Physics person, read on and learn a fact of physics. 7 `9 U E7 o% w* F* P
AMAZING!
; N+ `4 @9 L# ?( I& \: 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。
3 R! V9 x$ N! g; CEven after you see it, it is still hard to believe!
+ a, I. P7 U& R6 ]3 `4 Ttvb now,tvbnow,bttvb
% }; W$ |4 o1 l6 K1 u: W' l( L6 C公仔箱論壇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。: W6 P# u8 r9 P5 d9 @
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.76# G" z! W2 H% `; J5 d3 `4 H z! p1 ~
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
: W3 w) d* {5 U: f& dtvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.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。& Q8 e0 G0 } U/ X" o
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。0 f V% H: [. R3 T( C3 C6 A2 i
The photo was taken on the day of inauguration.5.39.217.76; ~$ [. @6 A% `
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb4 k1 |, Z; ?' n3 D/ \+ m. t
+ ~) ]- L+ e+ \& 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。Question:
/ i6 V3 R1 T- n8 [$ b* u, D
, c" p, {; F9 v/ n8 ?+ ^! BDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
0 v+ P- q7 [" ROr just the weight of the water?
/ }) ?! {4 Q- W8 h- t6 S# q& k; }公仔箱論壇5.39.217.763 u; @5 {3 q" F0 }4 i0 V0 ?! O
Answer:
, M' D& W/ Y. Z; `2 R' n: \6 n5.39.217.765.39.217.76, b" _( b. [; X
It only needs to be designed to withstand the weight of the water!
* b3 S; l! T$ o公仔箱論壇Why? 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; S! }& y: Z8 m3 v1 `
" \- g) [( [+ P: D5 \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。公仔箱論壇/ ?2 W! v' ]# `* A! x% @
The Incredible Magdeburg Water Bridge in Germany公仔箱論壇$ G8 t& J: P! }4 y. m
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. H) @. v" X7 }
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.
- W# @: b$ I0 d5 ?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。: h$ T/ r# Q5 r7 h! y
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.
, R: f0 O' C% N# T% v8 X3 n( H* N6 n5 A
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。' e- [: P" d( W
5.39.217.76$ K. z/ f8 A# p3 Q1 @
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 K. a, y6 n* h' |* f, B+ R6 B+ 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。) t2 _9 m8 X9 E+ Y3 B3 q ~7 w& h- F
公仔箱論壇! N6 }& g& s: ]: I9 {1 `
* _7 Y2 d3 F" E8 y: }2 [ y; |
; ?: }$ E1 q0 ^" G' I& t& dTVBNOW 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。
+ x! g; u; ?# ?公仔箱論壇 |
發表於 2011-10-2 10:09 PM
| 
發表於 2011-10-4 11:33 AM
| 
3 w: X1 k) \. D+ _( R
發表於 2011-10-15 09:35 PM
|