Engraving as a printmaking process has been in existence for centuries. The earliest known engraving was in 1446 indicating that the technique has been in existence for over 560 years. Engraving is to carve a pattern in a printing plate. The print...Printmaking-process …

The purpose of calibrating instruments is to ensure readings from an instrument are consistent with other measurements to determine the accuracy of the instrument reading and also to establish the reliability of the instrument i.e. that can be tr...Instrument-calibration …

The analytical concept, a theory is an approach that mainly employs the use of analysis to break a problem down into elements that are necessary for the problem to be solved. This approach looks much deeper into the problem, find its root causes, ...Sociology-Theory-(Ritzer,-George.-1996) …