Condition monitoring of lubricating oil is an effective method for early detection of abnormalities in rotating machinery in plants. In this research. a new monitoring technique for lubricant degradation using terahertz waves. which are electromagnetic waves located in the boundary region between light and radio waves. https://www.lightemupsequences.com/quick-find-Our-Seasons-The-World-in-Winter-Spring-Summer-and-Autumn-best-save/