How wireless energy from space could power everything
Electrical engineer Ali Hajimiri explains the principles behind wireless energy transfer and shares a far-out vision for launching solar panels into space in order to collect sunlight, convert it to electrical power and then beam it down to Earth.
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TED is a nonpartisan nonprofit devoted to spreading ideas, usually in the form of short, powerful talks. TED began in 1984 as a conference where Technology, Entertainment and Design converged, and today covers almost all topics — from science to business to global issues — in more than 110 languages. Meanwhile, independently run TEDx events help share ideas in communities around the world.