The Bavli, Shabas 50 amud 2 says (according to Rashi's understanding) that one can stick a knife between tightly foliated leaves on a branch on Shabas. Rashi explains: ואין חוששין שמא יגרור הקליפה ...
Erasing letters on Shabbos is only prohibited min HaTorah (from the Torah) when it's being done in order to write new letters. However if it's not being erased in order to write new letters then the ...
In SA OC Siman 340 in the Taz Sif-Katan 1 and brought in M"B Sif-Katan 10 that one shouldn't remove wax from on top of an ois (letter) in a Sefer because of the issur of "erasing" (mechika). The Biur ...
Possible Duplicate: Hashems name on device Is it permissible to erase the name of G-d from an E-reader? What are the practical limits of shaimos in the common era? Forgive me if I get some ...
Is using a book with letters stamped on the sides melacha (erasing) if the book wasn't closed in the first place?
A comment on this question points to the following from OU: Likewise, when words are stamped on the edge of a book (as is the case with most library books), these letters are separated when the ...
Specifically, when the writing - such as an expiration date - is printed in dot matrix style across the line between the bottle cap and the bottle cap's ring, what are the issues involved in opening ...