an abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions)
a unit of conductance equal to the reciprocal of an ohm
(thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work
"entropy increases as matter and energy in the universe degrade to an ultimate state of inert uniformity"
Abbreviation of scruple. (unit of mass in the apothecaries' system)
Abbreviation of sextodecimo; a book size, 15-17.5 cm in height.
The nineteenth letter of the English alphabet, called ess and written in the Latin script.
The ordinal number nineteenth, derived from this letter of the English alphabet, called ess and written in the Latin script.
An axiomatic set theory, developed by logician George Boolos, in which several of the axioms of ZF are derivable as theorems.