{"version":"1.0","type":"link","title":"Optical depth - Newikis","description":"Optical depth is a measure of transparency. It is defined as the fraction of radiation (or light) that is scattered or absorbed on a path. One way of visualizing optical depth is to think of a fog. The fog between a person and an object that is immediately in front of them has an optical depth of…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}