Self-contained breathing apparatus pressure changes with ambient temperature. As temperature decreases, the pressure inside the cylinder decreases. The relationship between the temperature and the pressure of a gas is defined by the formula "PV" = "nRT". (See Universal gas constant.) What is particularly important to understand from the formula is that the temperature is in kelvins, not degrees Fahrenheit. Consider the freezing point of water at 32 °F (0 °C, 273.15 K) and compare it to 96 °F (35.6 °C or 308.71 K; normal human body temperature is 37 °C). While 96 is arithmetically three times 32, the difference in temperature from a
98 Degrees Cincinnati, had attended SCPA with Lachey and they had performed together before in various outfits such as a barbershop quartet at the amusement park Kings Island and a cover band. The final member to join the band was Lachey's younger brother, Drew, who was working in New York City as an emergency medical technician. After rejecting a series of names (including Just Us and Next Issue), the group decided on "98 Degrees" describing body temperature and their music. Taking a series of jobs including landscaping, working as club security officers and delivering take-out food, the band refined its harmonies and