Kotaiv: Difference between revisions

# Taking a photograph is forbidden as it draws an image, but one does not have to avoid being in a picture taken by a non-Jew for his own purposes. <Ref> Mayim CHaim O”C 1: 145, Shemirat Shabbat KeHilchata 16:26, Rivivot Efraim 3:230 </ref>

# Regarding walking in an area where there is a surveillance camera, see [[Electronics on Shabbat]].

==Books==

# One may mark (not in the form a letter) a parchment by pressing one's nail on the parchment because it doesn’t last, yet it’s preferable not to do this because some authorities forbid this. <Ref> S”A 340:5, Birkei Yosef 340:5 that Or Zaruah and Smak forbid, Beir Halacha D”H “Mutar”  </ref> However, all opinions agree that it’s forbidden to mark a paper as it’s soft and the mark will last. <Ref> Mishna Brurah 340:25 </ref>

# One can be lenient to wipe with tissue that has words not of sanctity in languages other than Hebrew. <Ref> Yabea Omer O”C 5:29, Az Nidaberu 1 pg 164#129, Rivivot Efraim 1:257 related to throwing paper with words on it in water. </ref>

# It’s permissible to use a thermometer for which letters appear if the person has fever and when it’s removed from the person the letters disappear. [A digital thermometer is forbidden because using it completes an electric circuit.] <ref> Sh”t Yechva Daat 4:29, Sh”t Tzitz Eliezer 14:30 concludes that if a regular thermometer is available one shouldn’t use this type of thermometer, Minchat Ahava 22:19, Kinyan Torah 3:39 </ref>

==Sources==

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