All public logs

Combined display of all available logs of Citizendium. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

• 16:23, 7 April 2024 John Leach talk contribs deleted page Talk:Acoustic energy (Deleted together with the associated page with reason: content was: "{{PropDel}}<br><br>{{subpages}} '''Acoustic energy''' is a property of a periodic pressure wave, or a single pulse, propagating through an elastic medium. ==Biological sound== Human beings can usually perceive acoustic energy between the frequenies of 20–20,000 Hz, which is the basis of hearing. Human beings hearing depends on age of the listener : children hear better than adults or old people. Men tend to hear a lower ra...)