When an engine is ignited, it produces thrust and boosts the rocket into the sky. After the propellant is used up, delay is activated, producing tracking smoke and allowing the rocket a brief coast.
infirmary (plural infirmaries) 1  A place where sick or injured people are cared for, especially a small hospital; sickhouse. 2  A clinic or dispensary within another institution.
Mercy is a term used to describe the leniency or compassion shown by one person to another, or a request from one person to another to be shown such leniency or unwarranted compassion for a crime or wrongdoing.