This Melacha Applies to Sifting Wanted or Unwanted Particles. Does the Concept of מיד (Miyad/Immediate Use) Apply to This Melacha?;
דבר דבר (Dabair Davar): Telling Somebody Else Bad News on Shabbos;
Pulling Hair Out of a Fur Coat, Pulling a Feather from a Bird, and the Difference Between Pulling from the Ground or from a...