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。3 |1 f9 d8 A( h2 ~
1 m3 N$ K0 C- j1 I: z$ l ATVBNOW 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。If you are not a Physics person, read on and learn a fact of physics.
2 X) T. w7 y+ jtvb now,tvbnow,bttvbAMAZING!
( Z) c5 J: p3 ?5 J& `, oTVBNOW 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。5.39.217.768 L; p# k- E9 ^; L/ c! H' D
Even after you see it, it is still hard to believe!5 W, X2 G8 K r1 K- q
5.39.217.76' q8 X6 @) u+ M2 @0 N1 u
8 O; }. r% u7 ]3 nTVBNOW 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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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。" ]! _, j- F1 G# c% M/ i
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
9 M- i7 c2 p! D: y0 b5 }3 xTVBNOW 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 is located in the city of Magdeburg, near Berlin.公仔箱論壇( z8 Y/ U: [ r0 Z. R, e" H- `" w# |
0 n) O. I1 l+ T1 D8 ~
The photo was taken on the day of inauguration.
1 f9 h- o, x% t! i9 W& Ztvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
; ]/ g* |7 K. X' v, T+ I; U5.39.217.76tvb now,tvbnow,bttvb( j: u3 |' e- |& m3 |
Question:
3 G# h( k3 a3 g" S4 N! p) X. xtvb now,tvbnow,bttvb
8 I$ _5 r9 o8 NDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇- E; L3 a) Z# V3 K1 \2 w C4 V
Or just the weight of the water?
( e; W6 ^, [* }# [/ t, k: O: j
, V" n5 q2 F' p5 Y6 {& v公仔箱論壇Answer:5.39.217.76% I* e: \3 B! E y- ^$ r9 `5 K
4 K* i% |4 M/ K! b/ l3 L/ Ftvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water! 公仔箱論壇, o+ P7 X( X, e0 B( v
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
0 L- k/ v) i( W3 c; O4 }9 K; v! Z2 t* A- L% q( X& R5 J* H
1 q+ ~- x y 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 Incredible Magdeburg Water Bridge in Germany5.39.217.76' x% v' V" Q* c# B0 ~6 J3 e
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。% M2 B& f J3 d4 }* \5 w1 S& P
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.
- \$ w1 g' M3 H
, u t% r" X8 M( MConstruction 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/ ^, u( N5 `, ]$ b
* U* Z; _( r( A0 w: L# k7 s" oTVBNOW 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) O7 P# Z$ c/ Z: s5.39.217.76: k" ~% H; V7 K! E: {
& A8 U4 b5 r0 [: ?公仔箱論壇* A+ E5 p" Q$ O) W" [' m# c
公仔箱論壇1 G3 D) t* M: M" r
0 g3 K& T$ E" J6 r) i7 J7 a7 ~9 sTVBNOW 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。
! t9 W$ ^ C$ m) r* i. Ktvb now,tvbnow,bttvb公仔箱論壇: }. y+ i. ^0 p4 r0 i: W
|
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
|