Levitation of fluid drops and moving them is now possible


Beyond what the general public expects, scientists hope to discover ways to produce levitation on a low level scale at first which will serve various special researches in different domains.
It’s a common fact: for more than a century the idea of using the pressure of sound waves to make objects to float in the air was widely promoted. This really worked for tiny objects , like (and including) liquid drops, as a practical example. While levitating liquids was possible using this method, moving the levitated objects was not possible without touching them, until now.

Scientists from the ETH Zurich, in Switzerland, took the next step and rethought the procedure by constructing new adequate sound generator modules. Now, a levitating tinny object can be moved on one dimension, using sound waves at 24 kilohertz, above the normal hearing range for humans but clearly perceptible by dogs.
Immediate applications can be imagined for more accurate research methods and techniques. Different fluids can now be mixed in the levitation status in precise chemical mixtures excluding any possible contamination with other substances from the support or tools.

ETH Zurich is ranked among the top universities in the world. Twenty one Nobel Prizes have been awarded to students or professors of the Institute in the past in physics, chemistry and medicine. The school was founded by the Swiss Federal Government in 1854.



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