a flash of light
31light cone — noun In special relativity, the pattern describing the temporal evolution of a flash of light in Minkowski spacetime. This is modeled in 3 space using the two horizontal axes as spatial dimensions, while the vertical axis is time …
32Flash — (fl[a^]sh), v. i. [imp. & p. p. {Flashed} (fl[a^]sht); p. pr. & vb. n. {Flashing}.] [Cf. OE. flaskien, vlaskien to pour, sprinkle, dial. Sw. flasa to blaze, E. flush, flare.] 1. To burst or break forth with a sudden and transient flood of flame… …
33flash in the pan — Flash Flash (fl[a^]sh), v. i. [imp. & p. p. {Flashed} (fl[a^]sht); p. pr. & vb. n. {Flashing}.] [Cf. OE. flaskien, vlaskien to pour, sprinkle, dial. Sw. flasa to blaze, E. flush, flare.] 1. To burst or break forth with a sudden and transient… …
34Flash blindness — is visual impairment during and following exposure to a light flash of extremely high intensity. [ [http://www.hf.faa.gov/docs/508/docs/cami/0107.pdf Laser Pointers:Their Potential Affects on Vision and Aviation Safety (April 2001)FAA] ] It may… …
35flash — vb Flash, gleam, glance, glint, sparkle, glitter, glisten, scintillate, coruscate, twinkle mean to shoot forth light (as in rays or sparks). Flash implies a sudden and transient outburst of light or a sudden display of something that brilliantly… …
36Flash — may refer to: * Flash, StaffordshireIn technology: * Flash (photography), instantaneous illumination for picture taking * Xenon flash lamp, a lamp designed to produce intense white light for very short durations * Adobe Flash, multimedia software …
37Light painting — Light painting, also known as light drawing is a photographic technique in which exposures are made usually at night or in a darkened room by moving a hand held light source or by moving the camera. In many cases the light source itself does not… …
38Flash photolysis — is a pump probe laboratory technique, in which a sample is firstly excited by a strong pulse (called pump pulse) of light from a laser of nanosecond, picosecond, or femtosecond pulse width or by a short pulse light source such as a flash lamp.… …
39Flash light — Light Light (l[imac]t), n. [OE. light, liht, AS. le[ o]ht; akin to OS. lioht, D. & G. licht, OHG. lioht, Goth. liuha[thorn], Icel. lj[=o]s, L. lux light, lucere to shine, Gr. leyko s white, Skr. ruc to shine. [root]122. Cf. {Lucid}, {Lunar},… …
40flash|light — «FLASH LYT», noun. 1. a portable electric light, operated by batteries. It produces a light by the pressure of a button. 2. a light that flashes, used in a lighthouse or for signaling. 3. Photography. = flashbulb. (Cf. ↑flashbulb) …
