INNER EAR SENSITIVITIES
The conduction mechanism of the first stage, at the threshold of
hearing for a 1000 Hz tone moves a distance of 1/10th the diameter
of a hydrogen atom. We perceive the movement as sound.
| Mode | Lowest Reported Threshold |
| Auditory | 10-4 dyn/cm2 peak sound pressure |
| Seismic | 5 X 10-4 cm/sec2 peak acceleration |
| Rotational | 0.04 deg/sec peak velocity |
| Gravity | 5 cm/sec2 lineal acceleration |