An animation showing the relationship between pressure and volume when amount and temperature are held constant. Boyle's law (sometimes referred to as the BoyleâMariotte law, or Mariotte's law) is an experimental gas law that describes how the pressure of a gas tends to increase as the volume of the container decreases.
Multiple-alarm fire. One-alarm, two-alarm, three-alarm fires, are categories of fires indicating the level of response by local authorities, with an elevated number of alarms indicating an increased number of phone alarms went off during the fire. The term multiple-alarm is a quick way of indicating that a fire is severe and is difficult to contain.
Definition of 3-Alarm Fire. A 3-alarm fire is a very dangerous situation for the area, the people and the officials trying to extinguish it. Firefighters determine a 3-alarm blaze by the size and the severity of it. The firefighters then contact neighboring fire departments, news agencies and emergency personnel to inform them of how bad the circumstance surrounding the 3-alarm fire are.