The protocols and practices of dating, and the terms used to describe it, vary considerably from country to country and over time.While the term has several meanings, the most frequent usage refers to two people exploring whether they are romantically or sexually compatible by participating in dates with the other.This connection may be made with a screw-thread base, two metal pins, two metal caps or a bayonet cap.
While pair-bonds of varying forms were recognized by most societies as acceptable social arrangements, marriage was reserved for heterosexual pairings and had a transactional nature, where wives were in many cases a form of property being exchanged between father and husband, and who would have to serve the function of reproduction.
With the use of modern technology, people can date via telephone or computer or meet in person.
Dating may also involve two or more people who have already decided that they share romantic or sexual feelings toward each other.
Lighting includes the use of both artificial light sources like lamps and light fixtures, as well as natural illumination by capturing daylight.
Daylighting (using windows, skylights, or light shelves) is sometimes used as the main source of light during daytime in buildings.
A LAMP is a replaceable component such as an incandescent light bulb, which is designed to produce light from electricity.