solar energy is... the sun's rays (solar radiation) that hit the earth is the definition of solar energy. Two categories passive and active. Passive: Passive solar produces heat and provides lighting for structures.
Retirement Insurance Benefits. Retirement Insurance Benefits (abbreviated RIB) or old-age insurance benefits are a form of social insurance payments made by the U.S. Social Security Administration paid based upon the attainment of old age (62 or older).
Definition of rib. 1  form vertical ribs by knitting; A ribbed sweater. 2  support resembling the rib of an animal. 3  a projecting molding on the underside of a vault or ceiling; may be ornamental or structural. 4  a riblike supporting or strengthening part of an animal or plant. any of the 12 pairs of curved arches of bone extending from the spine to or toward the sternum in humans (and similar bones in most vertebrates) a teasing remark. cut of meat including one or more ribs.