本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 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 K% C6 p/ Q' Y; _; C/ {, E
g6 @8 U& d# ~$ v) C0 D y; fIf you are not a Physics person, read on and learn a fact of physics. 5.39.217.77:8898$ G0 ?% U: q# K4 \
AMAZING!
' X5 m4 B( c, f0 ?: v9 k" X
, w& w% U$ y+ _6 @) q- l* b8 g+ KEven after you see it, it is still hard to believe!tvb now,tvbnow,bttvb4 K6 u' V |$ y' @
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。 u* y% { E% g4 t
5.39.217.77:88989 L2 ` E9 s8 P% m0 z
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 6 v' t: p6 b' d8 t4 B
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
, D2 Q% ]7 }0 D7 q% XIt is located in the city of Magdeburg, near Berlin.
, @+ M. ?. @2 Y. B0 x- w- _tvb now,tvbnow,bttvb; w3 e ?1 y2 y: g' o8 Q7 ]! S
The photo was taken on the day of inauguration.
* j0 f7 z( c0 E2 |5 i* h- p1 S" X公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
* t) U$ t8 n# o9 v% ztvb now,tvbnow,bttvb
& O9 R7 F( ]" _9 y2 Y }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。Question:公仔箱論壇' b3 \! D' Z0 H# ~) t2 i
' `$ |7 w/ d5 R. z
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
& [9 Q' e+ y3 {& f" Q7 k5 M公仔箱論壇Or just the weight of the water? tvb now,tvbnow,bttvb5 R- T5 r8 t" t, U+ `6 x; P9 x
7 C( O- Q# z) J% c$ F. x) K* _Answer:
, R, r o2 A( J5 x' P, Z5 l6 ~/ \
; Y% t1 {- |+ `3 [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。It only needs to be designed to withstand the weight of the water! + {4 L# s0 s) G% k2 K) j$ p2 N
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.77:88988 g& O) n: E2 T. M2 |6 p, t
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。6 P0 F' e3 i" k6 I' O6 S- c' J3 g- k
( k; ~* P5 U) C) a2 I# fThe Incredible Magdeburg Water Bridge in Germany
) V: J/ n* U& D9 G! b; u. E& ftvb 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.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 `9 t* Y1 w- W' S* L A2 g
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. tvb now,tvbnow,bttvb d" L; V9 v/ i4 V i5 X8 K7 w
" b c4 Q3 o' _1 j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. 公仔箱論壇1 {: D( q# n( n
tvb now,tvbnow,bttvb" _ E: I8 O3 E9 Y1 d2 Z. Z
$ i/ F1 Y) S3 ]8 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。
1 S1 V' m7 N% @7 T3 L9 E
. F6 B: X" K' K- ^$ T5.39.217.77:88984 t2 r* K, H5 S
/ O0 @5 x" M2 j% s) ?( _9 P& k
+ R7 [: Q( V! y' J5 g5.39.217.77:8898公仔箱論壇; L5 M$ }$ E4 l! l2 L4 K' J
; L1 a, S) s& ] o$ Q5 Q- d5.39.217.77:8898 |
發表於 2011-10-2 10:09 PM
| 
發表於 2011-10-4 11:33 AM
| 
5.39.217.77:88987 n+ n6 F/ v/ V% e, [
發表於 2011-10-15 09:35 PM
|