unit of illumination
71cen|ti|me|ter-can|dle — «SEHN tuh MEE tuhr KAN duhl», noun. a unit of illumination equal to one phot …
72meter candle — meter candle, a unit of illumination equal to one lux; candle meter …
73footcandle — Illumination or brightness equivalent to 1 lumen per square foot; replaced in the SI system by the candela. * * * foot·can·dle kan dəl n a unit of illuminance on a surface that is everywhere one foot from a uniform point source of light of one… …
74Lighting — Not to be confused with lightning. For other uses, see lighting (disambiguation). Low intensity lighting and haze in a concert hall allows laser effects to be visible …
75optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… …
76eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… …
77Operation Shed Light — Part of the Vietnam War Tropic Moon III B 57G aircraft with FLIR and LLLTV in nose …
78Flash (photography) — The furious wing action of a Hummingbird Hawk moth is frozen by flash. The flash has given the foreground more illumination than the background. See Inverse square law A flash is a device used in photography producing a flash of artificial light… …
79Headlamp — Headlight redirects here. For other uses, see Headlight (disambiguation). High Beams redirects here. For the urban legend also known by that name, see Killer in the backseat. A motor scooter s front with an impractical number and variety of… …
80Brevity code — Contents 1 American/NATO codes 1.1 A 1.2 B 1.3 C …
