It's a world in which snowmakers talk of wet bulb temperatures _ a function of the dry bulb temperature on your thermometer and relative humidity _ and Boyle's Law and computer readouts, and forcing air and water through pipes to end up with snow.
12.
Most psychrometric charts used in HVAC design only show the dry bulb temperature on the x-axis ( abscissa ), however, it is the operative temperature which is specified on the x-axis of the psychrometric chart illustrated in ANSI / ASHRAE Standard 55 Thermal Environmental Conditions for Human occupancy.
