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Electricity on Shabbat: Difference between revisions

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# Some forbid leaving a digital photo frame which presents a slideshow of pictures set from before Shabbat to continue during Shabbat. <ref>[http://www.ou.org/webcast_kosher Rav Hershel Schachter] (OU Kosher Webcast, 2011, min 16-8) </ref>
# Some forbid leaving a digital photo frame which presents a slideshow of pictures set from before Shabbat to continue during Shabbat. <ref>[http://www.ou.org/webcast_kosher Rav Hershel Schachter] (OU Kosher Webcast, 2011, min 16-8) </ref>
==Sending email on Friday==
==Sending email on Friday==
# Strictly speaking it is permissible to send an email from America to Israel on Friday afternoon when it is already Shabbat in Israel but it's praiseworthy to avoid it. <ref> [http://www.ou.org/webcast_kosher Rav Hershel Schachter] (OU Kosher Webcast, 2011, min 9-13) </ref>
# Strictly speaking it is permissible to send an email on Friday afternoon from America to Israel when it is already Shabbat in Israel or on Saturday night from New York to California where it still is Shabbat but it's praiseworthy to avoid it. <ref> [http://www.ou.org/webcast_kosher Rav Hershel Schachter] (OU Kosher Webcast, 2011, min 9-13) ruled that strictly speaking it's permissible but it's praiseworthy to avoid it. </ref>However, if one may not send it to a non-observant Jew who may look at it on Shabbat. <ref>Practical Laws of Shabbat (Rabbi Rafael Soae, vol 1, pg 170-1) writes that it's permissible unless one is sending the email to a non-observant Jew who may look at it on Shabbat in which case it's forbidden because one will be encouraging violation of Shabbat. </ref>
 
==Reading by candle light versus light bulb==
==Reading by candle light versus light bulb==
# One isn’t allowed to read by a candle (wick in oil) on Shabbat because there is Gezerah that one will come to tilt the wick. <Ref> Mishna Shabbat 11a says that it’s forbidden to read by the light of a candle because one will come to tilt the wick. Rashi explains that if one tilts to wick (which is flickering) towards the oil so that it lights well, one will be violating Mavir (lighting a flame on Shabbat, which includes adding fuel to a flame). S”A 275:1 quotes this as halacha. </ref>
# One isn’t allowed to read by a candle (wick in oil) on Shabbat because there is Gezerah that one will come to tilt the wick. <Ref> Mishna Shabbat 11a says that it’s forbidden to read by the light of a candle because one will come to tilt the wick. Rashi explains that if one tilts to wick (which is flickering) towards the oil so that it lights well, one will be violating Mavir (lighting a flame on Shabbat, which includes adding fuel to a flame). S”A 275:1 quotes this as halacha. </ref>