本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 公仔箱論壇7 m& I5 d9 ]' z. R4 r$ }3 ]
/ }$ `- t. z E) W$ b5 p, Z5 Htvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb9 u; `9 d, A; T# s2 J6 N
AMAZING!
: w* }3 t: Q; ?. Stvb now,tvbnow,bttvb9 \$ B8 S4 \" p5 N5 f% V$ Y6 ^
Even after you see it, it is still hard to believe!
; W+ l U$ ~5 S! V' |tvb now,tvbnow,bttvb( v# p' o* O- R4 i
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 U* {7 _3 u9 B4 @/ B4 a
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
/ |8 b/ g" l) {- \& dtvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
3 e3 p9 y' Z0 [+ u# T5 QIt is located in the city of Magdeburg, near Berlin.
- B, Q& m L1 g; h+ ]7 W公仔箱論壇! x6 v5 V+ v& F, A" e4 ~
The photo was taken on the day of inauguration.5.39.217.775 v2 O" |2 k# [
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.775 i9 K/ r% I* f/ @9 ^
' l1 ?9 z( b) I( Z4 Y/ pQuestion:# n" _* K8 b. F
公仔箱論壇5 D5 f$ C" u% Z* O7 ]& A
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb1 K, M# r9 @/ t+ i
Or just the weight of the water? 5.39.217.77. y, G8 v% [1 W/ ~4 m) b8 k" r
tvb now,tvbnow,bttvb) u# n" S! y" T: T6 R$ X5 \
Answer:
/ u+ U3 t5 A9 `# ytvb now,tvbnow,bttvbtvb now,tvbnow,bttvb, s5 X% i, U, T: u. H+ U( S( h
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。- [# z/ C. L+ G2 s4 [
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
( i# c. D- g; d) _5.39.217.77
5 B- J8 N$ Z# Z6 ~- d) h# Ttvb now,tvbnow,bttvb
# W: L0 B [, {3 b4 ]* K5.39.217.77The Incredible Magdeburg Water Bridge in Germany
! p2 e7 G2 B1 D+ o" FTVBNOW 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.公仔箱論壇; M3 Y7 e( U: Y6 m$ W o$ \3 n" A
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.
3 i$ a' Z6 y. K$ W6 S0 Gtvb now,tvbnow,bttvb
" J- `1 b; y( R, _公仔箱論壇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. & f. a: h$ r6 K& T7 O$ | @' V
$ U# p! g ?' ~, P 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。
) u1 w( z0 p/ \/ M2 e: u6 C" z/ M$ R) t0 z! Y
1 }5 v+ D" I* }0 C: c0 y. u5.39.217.771 h! c. c, O z9 F" f
/ p' o1 \9 B# Qtvb now,tvbnow,bttvbTVBNOW 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。& m& G0 K7 v1 p7 o2 {* i
tvb now,tvbnow,bttvb. T1 n/ s B1 z4 C
4 Q) J8 G' |1 O- i% r9 r" F3 {公仔箱論壇 |
發表於 2011-10-2 10:09 PM
| 
發表於 2011-10-4 11:33 AM
| 
tvb now,tvbnow,bttvb5 q, @1 S0 M8 u; y. r6 o8 _1 l a; c
發表於 2011-10-15 09:35 PM
|