本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
- _' T3 |& j! J5 H/ g! D! PTVBNOW 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。, v- |( ^! Y; g5 X9 h: [
If you are not a Physics person, read on and learn a fact of physics. 5.39.217.769 n4 r) z! y* a9 k. Z; q
AMAZING!
4 Q1 _) Z1 W: m5.39.217.76
: J8 G) H- @; o | ntvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!公仔箱論壇8 x5 p4 e0 g ^& U; M/ D( |3 z5 ~
3 [/ b$ }9 f% B, o# CTVBNOW 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( e* {2 V7 z, t) e
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
' Z# @( |7 D5 W. [: X+ OThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
& U; E% Z( U6 t7 E9 U, UIt is located in the city of Magdeburg, near Berlin.% w# m* e" k6 t; q) d1 ` R
) g+ g1 G' F8 |* ~- T. } a- r5.39.217.76The photo was taken on the day of inauguration.5.39.217.76! Y, y# b1 Q; O
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.765 O2 | ^1 P i' M0 j- d9 X/ u8 d) 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。2 ]7 S; ?1 A! U q: C2 Y1 X
Question:tvb now,tvbnow,bttvb4 E; }# q$ h4 p' F
公仔箱論壇8 C; ^4 Q! T3 `/ ], N
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb2 [7 C7 K+ m3 n* I' S
Or just the weight of the water?
3 v, Y' V$ j; b
9 ?7 |" q$ ~+ {/ m- a- e: I# L/ c! \5.39.217.76Answer:# L1 _; j8 ~* F* b6 H F1 L" Z) o
6 P% M- g) h$ M- B( D/ Y j8 Otvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water!
9 z& L# T- A3 {' RWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded: I8 D5 j- R$ o# f5 o
6 `1 e5 S$ a( m4 |# J' c# R5.39.217.76
/ @5 H8 n: h7 C5 K) v( ~* X! J# c5.39.217.76The Incredible Magdeburg Water Bridge in Germany
1 ~% f2 ~# x) W4 } F5 Qtvb 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.& X. ~1 Q: g) p$ |/ n
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.
% C6 f. S1 B& f7 u1 w5 CTVBNOW 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5 ?$ A$ N/ ?2 j$ j8 a K
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. 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。. K$ m$ I0 j- w1 _
+ u2 H; b* ?5 V" G& K, ]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。! d- k7 E6 n# t5 V, Y" z3 E
- a% ~+ \( r9 g$ M4 K6 s/ f$ 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。
' u8 T1 x6 O0 s& ?公仔箱論壇tvb now,tvbnow,bttvb. \% J q7 d* Z/ u: ~6 F6 \
公仔箱論壇- l& o2 H, e+ X" O
! f0 i0 @0 Y% A7 O- B: D, ^' 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。0 k4 M) [: G+ c# V% @
: j6 U# [- P% G2 ]
|
發表於 2011-10-2 10:09 PM
| 
發表於 2011-10-4 11:33 AM
| 
% q. |# b$ ]# S0 l9 K7 _9 }
發表於 2011-10-15 09:35 PM
|