本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 tvb now,tvbnow,bttvb0 w2 ~4 n* V: x$ K+ |5 v
9 s. N }% ~8 k# y# k9 Z- V; o
If you are not a Physics person, read on and learn a fact of physics.
: {: I. h1 a/ u! ~tvb now,tvbnow,bttvbAMAZING! 公仔箱論壇* F m5 H$ w8 a1 k8 g& L& v# P. z
, K g+ d- p7 ?2 D! E" l2 K公仔箱論壇Even after you see it, it is still hard to believe!5.39.217.77:8898/ L" {, \" r: H5 G0 p2 i) a t4 }- B
+ ^; F8 u# k- I4 O# U9 R$ \
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。. s |' g+ F) q% W, O
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
& |. f0 i; B+ u$ otvb 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. 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。( s. A1 K9 ^* o
It is located in the city of Magdeburg, near Berlin.
& `$ E# b7 ?, J3 j% g9 Y% m5.39.217.77:88985.39.217.77:88986 |2 U7 D$ D5 ? K0 [- q. d+ L
The photo was taken on the day of inauguration.
( p& b! r: \3 o. _! d2 }To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.3 N( f' U. A! f6 A b/ [0 h5 D
+ }) x! @8 N$ G. ^: v A& D) Z5.39.217.77:8898Question:公仔箱論壇" n( B; V8 J0 q" V: x* Q
tvb now,tvbnow,bttvb7 {) f6 M. c( _* l. S F
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,6 |: M$ |: ?5 a( A0 q$ Q
Or just the weight of the water?
: ?! N* C: M8 j6 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。公仔箱論壇5 I; h [( A# N& p/ |9 y/ ^
Answer:( e6 B$ Z0 n3 {
; B+ G$ L7 `: g6 J2 x公仔箱論壇It only needs to be designed to withstand the weight of the water! 6 s3 l8 L+ }9 Q
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
4 f" j, P3 a. e5.39.217.77:8898
+ d9 g, G6 S5 y% x5 k公仔箱論壇- I! n+ N# U# @6 M4 K% K/ S
The Incredible Magdeburg Water Bridge in Germany
5 a: E7 q: d. O/ n3 m$ ]. vTVBNOW 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.tvb now,tvbnow,bttvb' c& [9 Z" v2 s! r/ D
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. ! S- F X) _6 _, S
; P- S/ [/ ?7 f4 D) c: d. H7 t( E! b( Atvb now,tvbnow,bttvbConstruction 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.
5 c) T( D o. \1 b" p$ B) d公仔箱論壇5.39.217.77:8898+ W* r" i3 U2 h) m, i7 c4 d! ^+ o
( d' R# t9 t5 U) y1 }tvb now,tvbnow,bttvb5.39.217.77:88986 s5 {& ^0 ^9 O% k. g) J- O; [# {0 Q
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。( T$ T1 i. Z; u4 i: u
( y* `& V$ {. G2 U# F- }5.39.217.77:8898tvb now,tvbnow,bttvb; O0 i' F3 S- I8 v6 u
tvb now,tvbnow,bttvb+ N# c- A, o: Q/ Z3 G2 \7 U; ?
5 q+ M3 j$ X' z: |2 m& n3 k6 f
i% S m+ C. j r+ s% s
|
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
|