# n4 f! M% L2 p! e \" O/ AIf you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb `6 L; C; I+ k G8 f$ K/ }4 Y# `
AMAZING! 7 r& M( C+ s3 l MTVBNOW 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。( j1 g& @5 ]- e- w. l
Even after you see it, it is still hard to believe! / ], j, x9 ?1 k: I) M& t[attach]1486499[/attach] " v5 R4 o2 W4 {( ?6 N, B2 X0 J公仔箱論壇 a, h g+ S; S$ V' p' t3 hMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 9 y- y; X7 p" d8 M* A' ntvb 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. 9 ~+ C% Z. y, D0 s$ _. P+ {It is located in the city of Magdeburg, near Berlin. ! U$ Z2 ^, n, F J& v( j0 a6 Y' f ; m" V4 Q- G, ~; @7 q4 P ^( D公仔箱論壇The photo was taken on the day of inauguration. % p# C6 u" F e8 g8 I; eTVBNOW 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。To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.www1.tvboxnow.com% v) G# s9 J3 }7 N( I- n! B
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。" E& E' p8 p* C N5 y, C
Question: 0 n* R' m* X4 S0 N5 d9 e6 etvb now,tvbnow,bttvb p! R9 r G( K% G. z公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, , {0 ~/ y' j/ |2 Z9 t3 ^Or just the weight of the water? 6 r1 T" w$ J9 ~" V
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Answer:2 ^: ?. n$ u- L! n' j1 A
% @0 V* }& m; }' ]* G8 w* C5 @公仔箱論壇It only needs to be designed to withstand the weight of the water! - I! V$ c; }# S9 tWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded3 r7 ?/ U) z, t" V3 X" | , T, v4 J3 B1 m! {9 Q$ w Ztvb now,tvbnow,bttvb; d# P( M1 e% L6 v The Incredible Magdeburg Water Bridge in Germany( |1 Y3 y+ `% p0 U" @: ~2 q) J
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. ) i% \7 ` [! v' d* xtvb now,tvbnow,bttvbThe 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. 公仔箱論壇! w# S+ [' {; ?1 f4 C+ V
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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. p0 Q: u6 S% o5 u# N
$ B2 D4 O0 n, Y, y! 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。www1.tvboxnow.com, c7 Y* Z+ n* B* \. V6 U [attach]1486500[/attach] + U; I# S2 Q J T1 I公仔箱論壇[attach]1486501[/attach] ( n! P* W+ m& z; N9 {+ ^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。[attach]1486502[/attach]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。* b9 y* M% Q. T _: D, B# `3 Y [attach]1486503[/attach] b* q5 y& S! Q/ F[attach]1486504[/attach] ' f" E" o! T# ~8 ?2 j; @9 F( Btvb now,tvbnow,bttvb[attach]1486505[/attach]www1.tvboxnow.com; c' [/ r+ ] h
www1.tvboxnow.com) h4 `# e- E) I0 P( `" V) v 作者: busyfun 時間: 2011-10-4 11:33 AM
