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Star Trek-Like 'Tractor Beam' Becomes Reality

Scientists in the U.K. are using miniature loudspeakers to lift and move tiny beads. In future, they hope to deploy this tractor beam-like technology in the human body.

Scientists in the U.K. are using miniature loudspeakers to lift and move tiny beads. In future, they hope to deploy this tractor beam-like technology in the human body.

(Illustration: Asier Marzo, Bruce Drinkwater and Sriram Subramanian)

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