EVER SEEN A RIVER OVER A RIVER?
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。4 z4 I: A' m; z* f" j. ]% n0 U
`+ T- w- A, F- \# y9 @5.39.217.76If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇9 c f3 A4 J$ I3 c& p$ S
AMAZING!
9 \1 y9 Z$ P9 s- x: V. Z! k" a @$ N( P$ W3 a: B
Even after you see it, it is still hard to believe!
o( J8 _" [% f% L2 [$ ]公仔箱論壇
+ E$ o- n% a3 p; M* 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。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 E8 U- d( \9 R7 T) [3 m+ b
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 3 r. x5 p' X2 v
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
( u# L. s& {' e) a& c. ]' ~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 is located in the city of Magdeburg, near Berlin.公仔箱論壇1 @4 r( p( t- F& J' O; O" u4 i
公仔箱論壇/ S: C1 Y/ b) W# W6 D7 B
The photo was taken on the day of inauguration.
4 ?2 _1 s: N- l$ atvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.76: v6 k$ v r9 ` e! B
2 u; H9 C5 Z! h. f- Z' ^, `" ^Question:
& E$ M2 p9 v4 c% q6 M3 v5.39.217.76tvb now,tvbnow,bttvb2 W) g/ A4 v! {. |8 r* _9 ` Q
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
4 ?+ i4 ^3 k/ {5.39.217.76Or just the weight of the water? : g$ ]3 R* s7 y6 Y: N4 p
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。4 q' {. T* l J$ ^$ Q! j; G$ b
Answer:
& e2 O% R! R, f, K- v. c ?% 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。
2 L" Q V" F' I/ `: z3 D5.39.217.76It only needs to be designed to withstand the weight of the water! 5 o+ ^5 U9 H9 X/ h0 z: @& m& S/ 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 loadedtvb now,tvbnow,bttvb# b' g+ t6 a P
3 L! ~* i; ^* ]9 n; S5 q8 w5 O; V2 P" {2 j) W5 Q& M. K
The Incredible Magdeburg Water Bridge in Germany4 T6 l/ J) m$ [7 Y {
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.
! F' X. d! p6 j" h& ^# OThe 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. 4 d" `: G; J* b3 X3 R% a
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。" |% ^. \+ r# l- l( e. I
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. % A) _' d( T- W: ~1 r3 E
- t9 n6 n. W- K3 m9 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。0 B: \5 L" ]" h0 x7 q7 r8 b
0 q9 q. D) }6 Z9 {5 I
& ~. @8 i2 w# u" x/ p公仔箱論壇
9 ~- c- [% r9 X9 P0 Y/ K& S+ C( v5 T( a$ \, j1 [9 H* H
公仔箱論壇' V( D7 h/ N5 p$ _
0 [" h; B1 [; H
& T+ C8 W( s/ M2 p: ^tvb now,tvbnow,bttvb |
附件: 您所在的用戶組無法下載或查看附件
發表於 2011-10-2 10:09 PM
| 
發表於 2011-10-4 11:33 AM
| 
- n/ p' ]* t. l
發表於 2011-10-15 09:35 PM
|