標題: EVER SEEN A RIVER OVER A RIVER? [打印本頁] 作者: lilitan008 時間: 2011-10-2 10:09 PM 標題: EVER SEEN A RIVER OVER A RIVER?
本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 + `2 H K- U1 W% \$ p- _$ W) Y$ Stvb now,tvbnow,bttvb5.39.217.77:8898! K4 Y3 W0 Z. X% B/ t3 l1 A
If you are not a Physics person, read on and learn a fact of physics. 6 X# D1 i$ u- [7 V7 _AMAZING! 5 @, t# L# O# L5 dtvb now,tvbnow,bttvb 5 f! b" ?. Y$ _7 J S( \公仔箱論壇Even after you see it, it is still hard to believe! ! ? _9 O7 _. ]tvb now,tvbnow,bttvb[attach]1486499[/attach]. f1 B# G7 B) f0 Y) M1 [
* |5 O. w4 E# ^3 y& ^+ _
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb/ A- ]! |* r, [
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. / k' n0 i! d8 }1 n" I. Y5.39.217.77:8898It is located in the city of Magdeburg, near Berlin.5.39.217.77:88980 y8 r6 I9 E9 H3 d) L0 ~( R
tvb now,tvbnow,bttvb+ z" r7 O; {5 q7 o% C$ I
The photo was taken on the day of inauguration. R: t4 r7 I- y3 h* u2 Z3 _To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. * V. X0 B0 d# G1 G8 G3 ]% F3 u4 [ 8 {: C" ?/ p4 `7 l/ W( ^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: ! l2 C2 x2 J6 p8 q9 xtvb now,tvbnow,bttvbtvb now,tvbnow,bttvb7 p* n# m2 Y; l' ~
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.77:88983 |, S8 c* I& S8 c) G3 H& f
Or just the weight of the water? : y6 v% u) J+ _8 U公仔箱論壇 ( E: }9 t' q9 \! vAnswer:0 G! A4 |$ v# f: c9 c. `
- |% k) [5 K4 r6 Y+ u ~
It only needs to be designed to withstand the weight of the water! 7 Y) Q7 S w& ]5 e) l8 j& p' n0 IWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded公仔箱論壇4 _% G2 D. g8 m2 K( M) {: v$ L* H % D K4 N) e+ r0 F# 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。" b/ Y7 _* `% ~2 R4 x3 q The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb, z5 m! L+ S2 y |, Q. P
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。# k6 |; B9 e- `: f
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. # {' P* j3 W t3 d! L" W* g/ ?
" E: g2 g9 ?6 t# LTVBNOW 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。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. " h% ~ Z2 w) d' [& ]1 g& I: }, S: g5 j3 ~
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 V7 l% ^1 N/ c2 P3 F' X5 h [attach]1486500[/attach]+ a( H5 k$ d" c) a1 O [attach]1486501[/attach] \# q* b5 o; X& A, N C+ F1 ttvb now,tvbnow,bttvb[attach]1486502[/attach]5.39.217.77:8898& V4 O: B7 U7 S: J% o( E% N [attach]1486503[/attach] " F/ f& u9 i" e5 W6 B7 M& D, Y" G. o8 ]2 dTVBNOW 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。[attach]1486504[/attach] - ^7 a- \- A, |' x7 n8 v" `tvb now,tvbnow,bttvb[attach]1486505[/attach]5.39.217.77:8898+ j/ Z7 ]7 x; W, [
+ ?8 {$ i2 _- l