本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 1 v' b" E( t! M
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If 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。 h( t0 _6 B l0 ]( @ E
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Even after you see it, it is still hard to believe!
2 W/ I( V, f# G2 K, b% ZTVBNOW 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。
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! www3.tvboxnow.com# M8 j6 }9 c1 _; J4 K8 c
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
, P! k- H+ i( `6 z公仔箱論壇It is located in the city of Magdeburg, near Berlin.5 U0 s7 M8 H) z; E$ l0 J
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The photo was taken on the day of inauguration.
0 ?$ v+ u* f1 E( M% e& y! {- mwww3.tvboxnow.comTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb( Z2 }2 ~/ A' L# Q) O& w# U7 [4 T3 b
( {6 _3 C4 |% A, R' W* A9 VQuestion:' a5 W5 [/ q2 Y" P- o
. z/ u; u, O; K0 _0 n* l+ Bwww3.tvboxnow.comDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
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5 T! X1 @: {5 a; M5 YTVBNOW 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 |$ w6 m5 ]4 c: ~1 ^www3.tvboxnow.comAnswer:
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& u; U/ `, d1 m公仔箱論壇It only needs to be designed to withstand the weight of the water! 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 Q) S# H2 K/ G" K" G
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& x+ H/ r) f- |; U$ b0 u2 Y! ^
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: h" ^5 c5 C" ?% o3 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。The Incredible Magdeburg Water Bridge in Germany
! }! g3 G; R* }: l/ I2 V5 H7 P- XThe 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.公仔箱論壇: T" r" _1 Y3 U1 u) t* Z# t/ J6 j
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. ! d( d" a/ n' A: X
5 P! B1 K8 L) h& n( i1 @www3.tvboxnow.comConstruction 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. www3.tvboxnow.com r( | z; Q( N G5 {
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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。0 i/ M: F9 s# C' s+ p1 V
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2 p i% h+ t. 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。
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