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BBC writeup: 'Tractor beam' grabs beads with sound waves http://www.bbc.com/news/science-environment-34647921 http://www.bbc.com/news/science-environment-34647
by kafkaesq 11y ago
BBC writeup: 'Tractor beam' grabs beads with sound waves
http://www.bbc.com/news/science-environment-34647921 http://www.bbc.com/news/science-environment-34647921