Scientists Are Getting Better and Better at Levitating Objects With Sound Waves

'No eye-wear or tricks required, simply 3D shapes sharing the very space in which we live.'

, an impressive feat of mixed-reality technology that could pave the way for some seriously futuristic hologram-like displays., the researchers were able to levitate individual polystyrene beads and water particles inside a special enclosure, making them move in three dimensions by adjusting the output of hundreds of small speakers, set up in a grid.

An obstructing object inside the enclosure previously could cause individual sound waves to bounce around aimlessly, causing any levitating object to fall out of the air. "It opens up the possibilities for fully immersive virtual reality experiences and interactive holograms," said Ryuji Hirayama, lead author from University College London, in the statement.

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