W- j5 {. Z4 e: L( v( m2 NIf you are not a Physics person, read on and learn a fact of physics. 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。 }: |, G* H3 z* a
AMAZING! " C& x, g% D- c/ `4 M1 T( N ( P. T7 o: u6 A8 Z* RTVBNOW 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。Even after you see it, it is still hard to believe!5.39.217.77:88981 `+ u0 r. P* i. I [attach]1486499[/attach] 8 g) Z) ?/ O( _! w6 htvb now,tvbnow,bttvb ! t4 x0 b0 [ G0 h- L3 d( s公仔箱論壇Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! : g" @$ W+ B1 y5 F: C1 `' ctvb 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. ! `' [7 I& `" L7 k9 R* pIt is located in the city of Magdeburg, near Berlin.5.39.217.77:8898( W% E. x1 T! W. U" M! Y. z X
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The photo was taken on the day of inauguration.公仔箱論壇/ @ w, k: g$ |- @# U
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. 6 ]) W0 e J; r( w2 W $ }: s' c2 S/ p7 H! B: g2 K$ @5.39.217.77:8898Question: & p/ N( ^6 \* u1 wTVBNOW 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。- l0 q4 L/ I I# q9 ? R
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, 1 H/ {$ J W& XOr just the weight of the water? 3 Q0 w C* C( l P公仔箱論壇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。$ c8 h1 L* a4 p) n8 _6 S5 t
Answer: " X# w* t; }5 G5 w$ k" otvb now,tvbnow,bttvb& G0 ^3 u( Q3 H& i4 B0 p n+ X
It only needs to be designed to withstand the weight of the water! 7 r9 n! T2 D O- X" |! WWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded : D$ {+ h8 Z2 O5.39.217.77:8898公仔箱論壇9 p, p( Q5 o x, p7 s
公仔箱論壇8 _. W$ |3 w( Y& `( u! q The Incredible Magdeburg Water Bridge in Germany公仔箱論壇8 r; v$ n8 F4 `2 L. H' K' s9 ]2 W
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. 7 {: w! L( H- E y) ~+ [) mtvb 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. 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 X* m8 G) n K
K8 W4 Q/ F% ?5.39.217.77:8898Construction 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4 ?5 H+ @( M" `) f6 h4 m
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) i1 N/ O+ S( R. Q4 x [attach]1486500[/attach] $ ~( j. i7 O9 p% I[attach]1486501[/attach] $ R5 @2 [, a9 l. h+ p7 k9 C) B% ?2 O+ l[attach]1486502[/attach] ) |5 `& C* x' x8 Qtvb now,tvbnow,bttvb[attach]1486503[/attach]公仔箱論壇 A7 f8 o: z1 R5 b/ b( `! ~- y$ b [attach]1486504[/attach] 6 t9 A6 d3 ]& z: ?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]1486505[/attach]% O% b* Z/ \; I3 u# Q
& l( K3 k4 W% k+ P+ @ 作者: busyfun 時間: 2011-10-4 11:33 AM
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