technology, the application of scientific knowledge to the practical aims of human life
manipulation of the human environment.
The subject of technology is treated in a number of articles. For general treatment, see technology, history of; hand tool. For description of the materials that are both the object and means of manipulating the environment, see elastomers; industrial ceramics; industrial glass; metallurgy; mineral deposit; mineral processing; mining; plastic. For the generation of energy, see energy conversion; coal mining; coal utilization;
French republican calendar, dating system that was adopted in 1793 during the French Revolution and which was intended to replace the Gregorian calendar with a more scientific and rational system that would avoid Christian associations.