| ▲ | londons_explore 5 hours ago | |
How do the power levels here compare with say a baby ultrasound? What are the chances baby ultrasounds are doing this unintentionally? | ||
| ▲ | exr0n 3 hours ago | parent [-] | |
Woah, that would be wild! It seems like most neonatal ultrasound reaches peak internal pressures of few-hundred kPa to 2 MPa. We ranged from 150-250 kPa. So, a little lower than the lower end of prenatal diagnostic imaging. So, the pressures are high enough to be stimulating them! But most diagnostic imaging happens at 1-20 MHz, while most neurostimulation seems to occur at few-hundred kHz (we were at 300 kHz, on the mid-high end). So I don't think it's likely that babies are being sent smells? | ||