ET = equivalent temperature (degrees Celsius)
WCF = wind chill factor (Watts per square metre)
SQROOT = square root function
W = wind speed (Km/hr)
T = air temperature (degrees Celsius)
(Source: Weather University of Waterloo)
'Knowledge can be communicated, but not wisdom. One can find it, live it, be fortified by it, do wonders through it, but one cannnot communicate and teach it.'