本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 5.39.217.76; I* }+ h$ M9 ]* h- N7 a
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If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇. B6 P+ W9 u# H# u+ j4 i1 N+ [
AMAZING!
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7 M8 Y; c: B4 ?" @: V$ u# 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。Even after you see it, it is still hard to believe!
6 H( Y, q1 N' K$ \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。
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7 J7 W' o. j# J) u- _- UMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! . _4 _2 V. K- g
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ! k) t ^# c" w. Z0 k2 \8 V! ~0 Q
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.
# K" v& G; A0 E# z! ^公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.76: D* @+ C. N4 v; ^4 ]
# L7 [% \4 e' d* }+ a4 b/ ?( N/ E5.39.217.76Question:公仔箱論壇: ~1 X/ ^* ?2 Q/ |/ w) q
tvb now,tvbnow,bttvb7 d' s# x5 e& J: B1 L3 z" T2 f3 M5 b
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,) h+ Z J5 M- t9 X9 B7 x
Or just the weight of the water?
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Answer:
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; r$ m# H* D0 D2 i) v+ b0 J公仔箱論壇It only needs to be designed to withstand the weight of the water! , |- H$ a s7 K( ~ D: t
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded
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K( a4 N& a% Z4 p1 Ftvb now,tvbnow,bttvbTVBNOW 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。5 V7 Z" ?% U8 z5 x
The Incredible Magdeburg Water Bridge in Germany
- p6 j( \3 W: O2 Mtvb now,tvbnow,bttvbThe 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。; X; i" t) D/ r5 Z% @
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. tvb now,tvbnow,bttvb ^. o' t' ?8 l3 X' u. Z0 ^& m
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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. 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 I- s9 N S8 C: |7 h. V0 c j
8 j, h K* q8 [/ P4 @; ztvb now,tvbnow,bttvb公仔箱論壇2 p; P" D& J& e; ^8 y
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. M2 n5 A$ {! }/ v3 s% _5 Z5 PTVBNOW 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。" n8 h9 F p5 N* M. k3 b- }
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發表於 2011-10-15 09:35 PM
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