News tagged with subway
Study shows subway systems develop in remarkably similar ways
(Phys.org) -- Visitors to major cities in the world might disagree, but a small group of French and British researchers has found that regardless of city density, structure and other factors, subway systems ...
May 22, 2012 |
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China to build world's largest quake simulator
A Chinese university said Tuesday it had started to build the world's largest quake simulator, a week after the first anniversary of the deadly earthquake in southwest China.
Space & Earth / Earth Sciences
May 26, 2009 |
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