Researchers Induce Smells With 300kHz Focused Ultrasound Through the Skull — No Chemical Cartridges Required

UploadVR·low signal

A four-person research team led by Lev Chizhov built a device using focused 300 kHz ultrasound through the skull to stimulate the olfactory bulb directly, inducing smell sensations including fresh air, garbage, ozone, and campfire smoke. Published via UploadVR (April 16), the post hit 139↑ (17 comments) on r/singularity. This is the first demonstration of non-chemical smell induction via transcranial stimulation, with direct implications for VR/AR and potential therapeutic applications.