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.
Informally, it was known as âthe swing-bed program.â a swing bed is a term used to describe the use of an inpatient hospital bed for either an acute or a skilled level of care. it applies to rural hopitals with fewer than a 100 beds. some eligibility criteria includes: that a patients must have prior qualifying hospital stay of at least 3 days.