本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 6 L" T/ D; s% o. A4 z* S% t# ]& S
- q6 F2 w! F; ~# [
If you are not a Physics person, read on and learn a fact of physics. 5.39.217.760 F) R# I. l: L3 h7 b
AMAZING! * L- W( `$ x1 K+ R4 e
- @. a1 G" U) i; U3 N! u5 L0 L
Even after you see it, it is still hard to believe!
v" J8 w7 k1 m0 ]0 c) y! i5.39.217.767 F. k( u% z( y
tvb now,tvbnow,bttvb) ~& o1 h* M7 C2 B/ d- U
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb7 Z- |0 b* a# G. V/ Q4 U
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. % X. O% B2 Y8 U) m. f( t. p
It is located in the city of Magdeburg, near Berlin., H& i6 X% \( ~# W7 u6 Z: R/ ~/ K
tvb now,tvbnow,bttvb3 ~. z! ~7 K9 M9 p6 h: ?
The photo was taken on the day of inauguration.公仔箱論壇) [1 ?) @* y0 \, o% g9 P4 y1 D
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb- _; S* g! D2 r) i+ X' e I4 c- ?. z
公仔箱論壇: R! ~' G% n H- p. x9 t' |8 A
Question:公仔箱論壇/ w' q3 `& S6 h8 O
' a+ V9 x( N+ e5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,, z9 a% k+ m0 h: w, s7 K" ^* a
Or just the weight of the water? 5.39.217.761 I; R" z* I) e2 X: _1 Z D$ O p# \
tvb now,tvbnow,bttvb! F; L' ?' c, ~0 h* {( e: f
Answer:
- @, d5 ~5 T8 M# MTVBNOW 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。5.39.217.764 r( q( {- ]5 i) }5 t* Y
It only needs to be designed to withstand the weight of the water! 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。7 Z: o9 j' H p
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded9 S3 T1 ?* C- K3 ~
: K5 t, ]6 a3 c& s* \5.39.217.76% V- S3 g# h1 f2 I6 H
The Incredible Magdeburg Water Bridge in Germany
5 d9 z2 V4 g) i0 ITVBNOW 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 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.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# k' J! u9 y1 D- o4 t: 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. 公仔箱論壇9 ^# X* x7 a: B& B
; o& x5 K5 I$ W! p% [
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) n7 U9 M; o2 @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。1 V1 | Z4 d. R! x) j: o) a/ G
8 L- K0 \1 j5 H* w) L5.39.217.76
$ u% v4 T: ~8 W% z% [4 |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。3 [ Q# A5 A0 I
7 t3 n! _* t& T( X( U$ V5.39.217.76* k9 n8 @0 ~- i* O: d
公仔箱論壇( p. N6 U- H F7 ^ b
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。. f4 {9 y' }: T/ M+ f
4 M1 z. ~3 S2 H$ Q5 R l8 R公仔箱論壇 |
發表於 2011-10-2 10:09 PM
| 
發表於 2011-10-4 11:33 AM
| 
公仔箱論壇 t2 }0 \# c4 @: z# a
發表於 2011-10-15 09:35 PM
|