Nelson Rolihlahla Mandela was the first South  African president to be elected in a fully representative  democratic election in 1994. He was also the first non-European  pâ¦resident of South Africa.     He was born 18 July 1918 in South Africa.
Semi-adjustable articulator with mounted casts. An articulator is a mechanical device used in dentistry to which casts of the maxillary (upper) and mandibular (lower) teeth are fixed, reproducing recorded positions of the mandible in relation to the maxilla.
Accumulator - A container which stores fluids under pressure as a source of hydraulic power. It may also be used as a shock absorber. Actuator - A device which converts hydraulic power into mechanical force and motion. (Examples: hydraulic cylinders and motors.)