Measuring for a mitzvah - "מדידה של מצוה". Preferably should be done on "ערב שבת".
Introduction to the Concept of עובדא דחול (Uvda d'Chol) in Relation to the Melacha of M'AMER;
(Melting ice.) the accepted ruling with putting ice or frozen drinks into a warm area; defrosting dry foods in a warm area;