Based on a work by Newton published anonymously as "Scala graduum Caloris. Calorum Descriptiones & signa." in Philosophical Transactions, 1701, 824–829;
ed. Joannes Nichols, Isaaci Newtoni Opera quae exstant omnia, vol. 4 (1782), 403–407.
colostate.edu
engr.colostate.edu
"Heat Transfer Mechanisms". Colorado State University. The College of Engineering at Colorado State University. Retrieved 14 September 2015.