We use Amazon Associate links to help support the site and the work we do.

SCIENCE: Levitating With Sound

tractor beam

A little plot bunny offered with love to all our sci fi writers:

A new “tractor beam” can levitate large objects in midair, using only sound.

So far, researchers have floated spheres as large as 0.6 inches (16 millimeters) in diameter and moved orbs as large as 0.8 inches (2 cm) on a tabletop using tornadoes of sound waves. Theoretically, vortices made by an array of 200 speakers by 200 speakers could hold up objects as large as 31 inches (80 cm) in diameter.

“This is new to acoustics,” said study co-author Mihai Caleap, a senior research associate in engineering at the University of Bristol in England.

By Stephanie Pappas – Full Story at Live Sound


Join Our Newsletter List, Get 4 Free Books

To view our privacy and other policies, Click Here
Please consider also subscribing to the newsletters of the authors who are providing these free eBooks to you. We are only able to offer them through the generosity of these QSF authors. You can always unsubscribe at a later date if you don't find anything of interest to you.
Once you submit this form, check your inbox to confirm this addition if you joined our newsletter list.

Leave a Comment