4 ms·
I assume they are pumping enough power to a single point to ionise the air and produce light. Would that much ultrasonic power be enough to burn human skin?
by robkop 9y ago
I assume they are pumping enough power to a single point to ionise the air and produce light.
Would that much ultrasonic power be enough to burn human skin?
- edmundhuber 9y agoIt's an LED on a tiny PCB with an inductive loop around it. One of the images in the gallery has a picture of it. The ultrasonic puffs of air keep it suspended.
- deleted 9y ago[deleted]