Broken link alert! I think there are too many http, etc. in the link?
Free Floating in midair LED Light Bulb
Practical applications ?
A levitating light bulb invented by a 19-year-old student from the University of Queensland has been singled out as an exciting industry innovation by an American lighting firm. http://phys.org/news/2012-08-levlight-student-video.html
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