本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
~4 T. ~+ ?' R; z* Fos.tvboxnow.com, } r8 F) _7 R6 h
If you are not a Physics person, read on and learn a fact of physics.
: e# |2 G2 f) X9 C. k7 f6 cAMAZING!
5 D1 \3 N8 m- D& l( M公仔箱論壇 u/ E* J- S! z' E& i, x
Even after you see it, it is still hard to believe!公仔箱論壇2 c3 p8 s9 } f( U6 r
6 _; \- d! z$ e! Y q( ]公仔箱論壇# h6 \$ V) O# D/ K
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! & {' I" I: T% A' G& H* v- ], e
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
; Z, Y4 g2 M! r. x' \; ntvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb2 g! |9 ?$ k; D5 z
6 @$ g% x0 x1 q) J2 Otvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.
( l; D4 o0 e8 I. d, J5 ]% k# Mtvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
$ e- i2 D3 i9 U: D5 j0 B- ?os.tvboxnow.comos.tvboxnow.com3 v: {1 I) v# S: N
Question:
. c) z9 K, G+ Q- |- L) W" t公仔箱論壇
7 k: ~% \% m% X" O! f4 tDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
. D& k* J5 G2 R1 o8 W, D2 Q$ T6 i, EOr just the weight of the water?
" u- F7 i U6 W* i" fos.tvboxnow.comTVBNOW 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。" W# l& ^5 j+ i# {4 W( j
Answer:
' \ A: S: [/ O* v
g' U( x' p5 E- `( 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。It only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb1 b. {0 C: w7 I3 g
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' F8 s1 t# u# B& i+ Dos.tvboxnow.comTVBNOW 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。8 g' {- O' z& J1 m
& J# k. i4 y l* J7 l" S( jTVBNOW 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 Incredible Magdeburg Water Bridge in Germany
- |* P0 K H R+ C5 l- f% L7 sos.tvboxnow.comThe 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.os.tvboxnow.com: y" G& ^( o; v7 S9 E+ h- 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. os.tvboxnow.com& d/ T/ R3 i( q0 n2 c- l+ Q
3 O0 ~+ @7 g& _9 ]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. & E, w1 i# W" n5 ] X
, n& {" m# {4 z, j8 n$ `公仔箱論壇7 c$ ?4 ~/ _& ^% e' o* k g. o& p1 S
tvb now,tvbnow,bttvb9 b/ G5 b/ O4 H* X3 N
0 s6 g; v, Z# TTVBNOW 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。
q$ s j8 K& H/ }( r9 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。公仔箱論壇- L# E0 g. ?# e
公仔箱論壇- {3 ^( w% ~6 g1 l# r, C( {3 ^
p8 L; h* @; D5 S. ^/ K8 o* Btvb now,tvbnow,bttvb* O0 B. s: L, s) ]; D$ _
|
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
|