Vijay Kumar demonstrated fleets of flying machines that could revolutionize industries . He held up one robot , designed by his students Daniel Mellinger and Alex Kushleyev , which weighs a little more than a tenth of a pound and is about 8 inches in diameter . Kumar spoke at the TED2012 conference , ` ` Full Circle , '' in India . He highlighted the link between technological progress and social issues . Technology has improved health , lifespan , productivity , yet it poses challenges , speakers said .
Vijay Kumar demonstrated fleets of flying machines that could revolutionize industries . Kumar spoke at the TED2012 conference , ` ` Full Circle , '' in India . He highlighted the link between technological progress and social issues . Technology has improved health , lifespan , productivity , yet it poses challenges , speakers said .