本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 ) T* v2 M% k) E, T& |. m
8 I( Z4 ?2 u" B' D
If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇& F' T2 o3 U# l) V# k$ ~8 [
AMAZING! ( @7 o* N. |6 L9 X. f" \
tvb now,tvbnow,bttvb6 G: k' G' j2 L; A; v
Even after you see it, it is still hard to believe!
5 P6 d) z, ?8 J9 Q) C! H R- b5.39.217.76: @' v/ C5 F# W6 B( }* ~; m2 D5 F
" C2 l' d5 ~+ g+ XTVBNOW 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! $ b6 n& w1 j, D# C% i
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇$ t" C$ h7 D% j8 T
It is located in the city of Magdeburg, near Berlin." @. L1 z" D! U- ]) N0 m" v
5.39.217.76% S9 g2 n! ?5 L
The photo was taken on the day of inauguration.
3 N/ f2 J7 R. K3 I5.39.217.76To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists./ {) e7 N- }" [* B6 J4 _# \' j
( t2 p: \$ r8 m( p Y" r m9 k1 X* 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。Question: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。( g% b% E2 q7 C1 @% B/ H+ `
公仔箱論壇# _- [+ G- z, G& A" T: u
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb1 X1 c( X @! {& X1 ]4 [% X
Or just the weight of the water?
' f# ` i$ r# 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。! n$ r: L x, o' Y; u5 d, |2 `+ P
Answer:
& y. k, B& x0 c$ k/ z( M& T
% c6 f! H9 R" }7 I) o: ?: CIt only needs to be designed to withstand the weight of the water! 公仔箱論壇" U6 j3 C' \, A: ? v
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
1 V, g9 i9 E( a7 W! D# S; p( p+ h
$ O- Z! C) `5 c1 m( b( d! V( w; 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。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。4 Y, @) G( R( z" _' z
The Incredible Magdeburg Water Bridge in Germany( N) h4 J5 s2 G4 u2 }) X
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.
' j; V. y4 \7 H& r! k! Btvb now,tvbnow,bttvbThe 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.
' s2 M. |: @$ J" A公仔箱論壇 l8 D0 R1 e" W! I
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. " p' Z8 N: T, R4 G7 [
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 h$ y3 |$ p
tvb now,tvbnow,bttvb; x# w# d# V* P4 S2 E" Y* k* q
3 F* f5 d) x( b3 ^# i0 b公仔箱論壇
; r9 Q. p. m7 atvb now,tvbnow,bttvb
5 ^# T2 _- G& Z
7 q2 U: O, Q$ H, A8 J6 b公仔箱論壇
1 d% Z0 ?, [9 s5.39.217.76' C7 K) M: C5 d4 ^" R% F
公仔箱論壇& Q0 o. k/ V" h+ J7 U
|
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
|