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What new sort of lightbulb has a student at Australia's University of Queensland recently developed?

What new sort of lightbulb has a student at Australia's University of Queensland recently developed?

Answer: a levitating lightbulb

According to 18-year-old Chris Rieger's website, he has developed a levitating lightbulb, shown above, that uses a combination of magnetic levitation and wireless power transfer. 

Photo courtesy of Chris Rieger