{"version":"1.0","type":"link","title":"Grating - Newikis","description":"A grating is any regularly spaced collection of essentially identical, parallel, elongated elements. Gratings usually consist of a single set of elongated elements, but can consist of two sets, in which case the second set is usually perpendicular to the first (as illustrated). When the two sets…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://thumb.wikimedia.org/wikipedia/commons/thumb/8/8c/Metro_ventilation_grid%2C_Alameda_Afonso_Henriques%2C_Lisbon%2C_Portugal_julesvernex2.jpg/1280px-Metro_ventilation_grid%2C_Alameda_Afonso_Henriques%2C_Lisbon%2C_Portugal_julesvernex2.jpg","thumbnail_width":1280,"thumbnail_height":869}