General Conversions, Formulas & References ◊◊ These pages present a great deal of data in the form of conversions, formulas and references. I am confident that this is the most comprehensive and diverse presentation of topics on a single web site. Click here for a link to NIST's Reference on Constants, Units and Uncertainty. IC Heat Transfer IC Lifetime Acceleration Laws of Motion Laws Of Thermodynamics Length Conversions Mass Conversions Materials Properties Mechanical Constants Mechanical Units Periodic Table Phonetic Alphabet Pressure Conversions Psychometric Chart P-T Diagram.