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In visual perception, flicker is a human-visible change in luminance of an illuminated surface or light source which can be due to fluctuations of the light source itself, or due to external causes such as due to rapid fluctuations in the voltage of the power supply (power-line flicker) or incompatibility with an external dimmer.
The flicker of a CRT monitor can cause various symptoms in those sensitive to it such as eye strain, headaches [9] in migraine sufferers, and seizures in epileptics. [10]As the flicker is most clearly seen at the edge of our vision there is no obvious risk in using a CRT, but prolonged use can cause a sort of retinal shock where the flickering is seen even when looking away from the monitor.
The first use of the word dates to 1580—with the intransitive "flit" and the noun form—ca 1590—with the transitive "flick". [2] Flirt has been attributed to the French conter fleurette, meaning to woo. Fleurette, meaning small flower, was used in the 16th century in some sonnets [3] and texts, and has since fallen out of use.
The meaning of the V sign is partially dependent on the manner in which the hand is positioned. ... is commonly performed by flicking the V upwards from wrist or elbow.
The Cynic philosopher Diogenes, pictured by Gérôme with the large jar in which he lived; when strangers at the inn were expressing their wish to catch sight of the great orator Demosthenes, Diogenes is said to have stuck out his middle finger and exclaimed "This, for you, is the demagogue of the Athenians."
Twister is one of the most recognizable games in the country -- we all have familiar memories of flicking the spinner and placing a foot or hand on whatever color the peg lands on. Apparently, the ...
Shoulder flick, using one's fingers to flick off an imaginary speck of dirt or dust on one'sshoulder. Denotes that the effort that was undertaken was hardly worth the trouble entailed. Shrug, lifting both shoulders indicates lack of knowledge or concern (🤷). Sometimes the gesture is a palms upwards from bent elbows motion with possible ...
In some African and Caribbean countries, a similarly obscene gesture is extending all five digits with the palm facing forward, meaning "you have five fathers" (thus calling someone a bastard). [ 9 ] In Iraqi and Assyrian culture , abruptly thrusting the palm of the hand to someone means they are worthy of shame and are dishonourable.