change - a relational difference between states; Specifically between states before and just after some event; "he attributed the change to their relationship" And therein I think I'm able to lay my finger on the difference between the seamen of yesterday, who are still with us, as well as https://thermal-shock-testing-for89012.blogminds.com/5-simple-techniques-for-dry-air-purge-thermal-chambers-32726874