本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics.
" [1 f! g" Y, U8 U% v, `- wtvb now,tvbnow,bttvbAMAZING!
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Even after you see it, it is still hard to believe!tvb now,tvbnow,bttvb! B* H( y7 \' b7 P) V# N: V! D
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
4 _9 c0 ~; t/ p; o; jTVBNOW 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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。) m( n) j" M5 M" Z d8 y( u
It is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration." h/ }) S9 e T9 r& {6 s/ f' c
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:公仔箱論壇6 B7 f% j: J- L$ I
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,5 W% y8 o9 d& I% ~6 U& @
Or just the weight of the water? tvb now,tvbnow,bttvb. G+ C8 Z3 T: m
) k* E, B, q" J% T _+ {! 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。Answer:
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It only needs to be designed to withstand the weight of the water! 0 m! l3 O4 M4 ?9 O9 U# c/ H
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedTVBNOW 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 a( G) s' f9 W8 i6 l& u
公仔箱論壇9 Q ]5 w' ~5 H
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The Incredible Magdeburg Water Bridge in Germany
# i: M# }8 Z/ J/ @0 ]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。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.
2 Y: K& ?! |* l( e) s公仔箱論壇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. 5.39.217.76' S2 _5 D: b% `/ H/ _% g0 W
& o1 h+ `4 O8 \/ Ktvb now,tvbnow,bttvbConstruction 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. & x% V% g4 l+ I8 W+ z/ K% B
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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。$ u. C& a; a/ i1 A, L* Q
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% a, U- P5 H4 B. G% 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。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。/ K$ {) ~4 u- \
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發表於 2011-10-2 10:09 PM
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發表於 2011-10-4 11:33 AM
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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。2 P ~: O; c8 _4 [8 U! T
發表於 2011-10-15 09:35 PM
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