Categories Articles Sci-fi tractor beams a reality? Scientists devise hands-free way to move objects using sound waves Post author By crystalg Post date December 6, 2022 Study Finds Tags Beams, devise, handsfree, Move, Objects, reality, Scientists, scifi, sound, tractor, Using, waves ← Cannabis-tech firm Weedmaps is cutting up to 25% of its employees as the industry’s downturn continues → Was Iran’s Morality Police Really Abolished? What We Know