Qhov zoo ntawm txhua ntu ntawm txhua yam khoom yuav txawv txav. Raws li kev hloov qis thiab kev sib hloov ceev ceev, qhov ua tsis tau zoo yuav cuam tshuam qhov ruaj ntseg ntawm cov kwv' s kev sib hloov. Qhov siab ceev dua, qhov ntau dua qhov kev vibration.
Kev ua haujlwm ntawm qhov sib npaug ntawm qhov nyhav tshuav yog qhov tsawg kawg ntawm qhov sib txawv tsis zoo ntawm lub log kom ua tiav lub xeev sib npaug.