Tractor beams exist in the real world. They use ultrasound to hover and manipulate tiny objects. “It can be thought of as an acoustic hologram. It’s a shape that exists in space but is made of sound.”
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If you want to see the tractor beam in action, QI featured it on a programme in January 2023
Hey, don't forget optical tweezers; they actually work in a vacuum! But, they operate on even smaller objects, like bacteria, or single atoms --- or arrays of individual atoms: Atomic arrays power quantum computers
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