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.
Inflammation is a response from your immune system to an irritant or injury. For example, if you sprain your ankle, your immune system creates a protein called Circulating Immune Complex (CIC). The CIC accumulates near the injury and causes pain and swelling. FREE PRODUCT OFFER AT BOTTOM OF PAGE.