单词：Ha Noi
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This is Scientific America's Sixty-Second-Science. I am Steve Mirsky. Got a minute? Some interesting electrical activity in the clouds of ash drifting around Europe as a result of that Icelandic volcano. Models predicted that electrical charge should
Scientific American(五)月
英国广播公司:戴尔公司的研发部门称,该公司或将在2017年推出新的应用来读心情. 能读出人心情的应用 BBC News: The head of Dell's new research and development division has said the company could release a mood-readin
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Some interesting electrical activity in the clouds of ash drifting around Europe as a result of that Icelandic volcano. Models predicted that electrical charge should be limited to the top and bottom of any ash plume, which is often the site of spect
60秒科学
By VOA News 12 February 2008 Astronauts from the space shuttle Atlantis are formally opening the new laboratory at the International Space Station Tuesday. Crew members set up electrical and data lines linking the new Columbus laboratory to the stati
VOA常速英语2008年（二月）
Studies Show Exercise Reduces Dementia Risk Evidence continues to mount that physical exercise reduces a person's risk of dementia. In some of the latest research, scientists measure actual physical activity, rather than rely on people's imperfect me
VOA标准英语2011年(七月)
A new study finds regular physical activity as a teenager may prevent cognitive impairment - a decline in mental abilities - decades later. Previous studies found that people who were physically active in later life were more likely to avoid mental d
VOA标准英语2010年(七)月