Levitação por ondas sonoras

Posted on outubro 28, 2015


The study is the first time an object has been successfully held and controlled in mid-air

The frequency of the sound waves used in the tractor beam was set at 40KHz

Publicado em 27 de out de 2015
Scientists can float objects in mid-air, using just the power of sound. Now, using ultrasonic speakers, they can levitate things with more control than ever before, moving small objects in three dimensions even with the whole array turned upside down. They have also developed virtual ‘holograms’ to visualise how the shapes made by the sound waves can ‘grab’ objects.

Find the full paper here: http://nature.com/articles/doi:10.103…