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.
1 A continuous ringing of the bell is the signal for a fire and it is the responsibility of the office staff to telephone the emergency services.  Evacuate the building immediately on hearing the alarm through the nearest fire exit  if possible try and do a quick head count'  do not stop to collect belongings.