This Melacha Applies to Sifting Wanted or Unwanted Particles. Does the Concept of מיד (Miyad/Immediate Use) Apply to This Melacha?;
What Is the Best Way to Get Rid of an Insect on Shabbos?;
Snapping with One's Fingers on Shabbos and Banging with One's Fingers on the Ground or on a Table;