change - a relational difference between states; Specifically between states prior to and soon after some occasion; "he attributed the change to their marriage" In times passed by, Substantially with the male population from the northern states in the cold months would put on a garment of thermal underwear https://pcbthermalcyclingfailurem35678.blogdal.com/36214132/what-does-best-practices-for-thermal-shock-testing-mean