Understanding the Concept of גרמא (Grama/Indirect Action) as It Relates to the Melacha of Zoreh;
Why is squeezing liquids that are absorbed in fruits and other various types of foods not the melacha of BORER?
Understanding the Concept of Leaving an Item on a Tree from Before Shabbos into Shabbos. Some Halachas About Using the Side of a Tree;