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Electricity on Shabbat: Difference between revisions
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# It is forbidden to speak into a tape recorder even if the recorder was turned on before [[Shabbat]]. <ref>Menuchat Ahava 24:13, Yechave Da'at 2:57. Igrot Moshe OC 3:55 forbade recording a shiur on Shabbat or the like since speaking into it might cause the voltage to increase in the circuit and also it might be considered molid to have something new introduced into the memory of the recorder.</ref> | # It is forbidden to speak into a tape recorder even if the recorder was turned on before [[Shabbat]]. <ref>Menuchat Ahava 24:13, Yechave Da'at 2:57. Igrot Moshe OC 3:55 forbade recording a shiur on Shabbat or the like since speaking into it might cause the voltage to increase in the circuit and also it might be considered molid to have something new introduced into the memory of the recorder.</ref> | ||
===Electric Blanket=== | ===Electric Blanket=== | ||
# It is permitted to use an electric blanket on [[shabbat]], provided one does not move the knob that adjusts it. It is proper to place scotch tape on top of the knob in order to prevent oneself from accidentally adjusting the blanket on [[shabbat]]. <ref> Igrot Moshe 3 | # It is permitted to use an electric blanket on [[shabbat]], provided one does not move the knob that adjusts it. It is proper to place scotch tape on top of the knob in order to prevent oneself from accidentally adjusting the blanket on [[shabbat]]. <ref> Igrot Moshe 3:50, Menuchat Ahava 1:24:37, Yechave Da'at 2:49 </ref> Note this only applies to the older electric blankets that work when plugged in but not ones which are responsive to sensing a person's presence are forbidden. | ||
===Automatic Doors, Doorbells, and Door Chimes=== | ===Automatic Doors, Doorbells, and Door Chimes=== | ||
# It is forbidden to enter an automatic electric door which opens with a motion sensor unless there is a need to enter a hospital with an electric door for the needs of a patient who is in a life threatening situation. <ref>Shemirat Shabbat Khilchata 40:19</ref> | # It is forbidden to enter an automatic electric door which opens with a motion sensor unless there is a need to enter a hospital with an electric door for the needs of a patient who is in a life threatening situation. <ref>Shemirat Shabbat Khilchata 40:19</ref> | ||
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* Practical Laws of [[Shabbat]] (Rabbi Rafael Soae, p. 335) quotes Kedushat HaShabbat (Rabbi Moshe Harari p. 79) who says that if there’s no other bathroom available other than one which has toilets that automatically flush when one moves away, one may use the toilet because of Kavod HaBriyot. | * Practical Laws of [[Shabbat]] (Rabbi Rafael Soae, p. 335) quotes Kedushat HaShabbat (Rabbi Moshe Harari p. 79) who says that if there’s no other bathroom available other than one which has toilets that automatically flush when one moves away, one may use the toilet because of Kavod HaBriyot. | ||
* Rabbi Yisrael Belsky in Shulchan HaLevi 7:7 permits using this type of bathroom if there is no other bathroom available, but if there’s another option, he forbids using the electrical toilet. Rabbi Aryeh Lebowitz ([http://www.yutorah.org/lectures/lecture.cfm/761805/Rabbi_Aryeh_Lebowitz/Ten_Minute_Halacha_-_Using_Automatic_Bathrooms_on_Shabbos “Using Automatic Bathrooms on Shabbos”]) quotes Rav Belsky as saying that kavod habriyot would not be a leniency in order to wash one’s hands with an automatic sink. </ref> | * Rabbi Yisrael Belsky in Shulchan HaLevi 7:7 permits using this type of bathroom if there is no other bathroom available, but if there’s another option, he forbids using the electrical toilet. Rabbi Aryeh Lebowitz ([http://www.yutorah.org/lectures/lecture.cfm/761805/Rabbi_Aryeh_Lebowitz/Ten_Minute_Halacha_-_Using_Automatic_Bathrooms_on_Shabbos “Using Automatic Bathrooms on Shabbos”]) quotes Rav Belsky as saying that kavod habriyot would not be a leniency in order to wash one’s hands with an automatic sink. </ref> | ||
===Alarm Systems=== | |||
# If someone has a grama system (for example [http://www.zomet.org.il/eng/?CategoryID=251&ArticleID=115 Zomet's grama alarm]) set up so that when the door is closed a mechanism will close an alarm system after some time, according to some poskim it is permitted to use it for a significant need.<ref>Minchat Shlomo 2:60:20</ref> | # If someone has a grama system (for example [http://www.zomet.org.il/eng/?CategoryID=251&ArticleID=115 Zomet's grama alarm]) set up so that when the door is closed a mechanism will close an alarm system after some time, according to some poskim it is permitted to use it for a significant need.<ref>Minchat Shlomo 2:60:20</ref> | ||
===Motion Sensor Lights=== | ===Motion Sensor Lights=== | ||
# Some poskim permit walking in an area where a motion sensor will turn on a light provided that one does not intend to turn on the light if there’s no other way to walk. <Ref> | # Some poskim permit walking in an area where a motion sensor will turn on a light provided that one does not intend to turn on the light if there’s no other way to walk. <Ref> | ||
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Since the dishwasher doesn't function if it isn't closed it may not be used. It is also forbidden to illegally get a mechanic who will break the dishwasher so that it starts even if the door isn't closed.</ref> | Since the dishwasher doesn't function if it isn't closed it may not be used. It is also forbidden to illegally get a mechanic who will break the dishwasher so that it starts even if the door isn't closed.</ref> | ||
===Watches=== | ===Watches=== | ||
# Most poskim are lenient to allow wearing an automatically winding watch if it is still running.<ref>Yabia Omer OC 6:35 writes that according to his opinion that as long as the watch is still running then it is certainly permitted to wear a watch that self-winds while it is still running. He adds that even those who hold that it is forbidden should agree with the automatic watch since it is a pesik reisha dlo nicha leh on a derabbanan. Additionally, it could be a shinuy and also derech levisha (Rav Poalim 1:26). Chelkat Yakov 1:75, Tzitz Eliezer 9:20, Shemirat Shabbat Khilchata ch. 28 fnt. 57, and [http://www.dailyhalacha.com/m/halacha.aspx?id=750 Rabbi Mansour] agree that an automatic watch is permitted. Shemirat Shabbat Kehilchata quotes Rav Shlomo Zalman who was lenient since fundamentally when the watch is still running it isn't fixing to wind it especially in that it is "fixed" with the simple action of just swinging one's hand. Tzitz Eliezer's reason is that many permit winding the watch while it is still running and here it is a dvar sheino mitchaven and a shinuy. Az Nidbaru 2:39 says it is forbidden. </ref> | # Most poskim are lenient to allow wearing an automatically winding watch if it is still running.<ref>Yabia Omer OC 6:35 writes that according to his opinion that as long as the watch is still running then it is certainly permitted to wear a watch that self-winds while it is still running. He adds that even those who hold that it is forbidden should agree with the automatic watch since it is a pesik reisha dlo nicha leh on a derabbanan. Additionally, it could be a shinuy and also derech levisha (Rav Poalim 1:26). Shaalei Tziyon 11, Chelkat Yakov 1:75, Tzitz Eliezer 9:20, Shemirat Shabbat Khilchata ch. 28 fnt. 57, and [http://www.dailyhalacha.com/m/halacha.aspx?id=750 Rabbi Mansour] agree that an automatic watch is permitted. Shemirat Shabbat Kehilchata quotes Rav Shlomo Zalman who was lenient since fundamentally when the watch is still running it isn't fixing to wind it especially in that it is "fixed" with the simple action of just swinging one's hand. Tzitz Eliezer's reason is that many permit winding the watch while it is still running and here it is a dvar sheino mitchaven and a shinuy. Az Nidbaru 2:39 says it is forbidden. </ref> | ||
# According to many poskim the same is true of an electric automatic watch that it may be worn on Shabbat.<ref>The reasons for the mechanical self-winding watch seem to apply to the electric recharging watch as well. See above. [http://www.eretzhemdah.org/newsletterArticle.asp?lang=en&pageid=4&cat=7&newsletter=1027&article=3894 Rabbi Daniel Mann on eretzhemdah.org] holds that it is permissible to wear the kinetic watch on Shabbat since the transfer of mechanic energy to electrical energy in a battery back into mechanical energy doesn’t create any circuit and is permitted. Additionally, it is similar to some of the arguments made about the automatic watch (that it is a pesik reisha, shinuy, derech levisha). [http://dinonline.org/2014/09/07/wearing-kinetic-watch-on-shabbos/ Rabbi Pfeffer on dinonline.org], [http://shut.moreshet.co.il/shut2.asp?id=9698 Rabbi Yisrael Rozen], and [http://www.yeshiva.co/ask/?id=4064 Rabbi Li’or on yeshiva.co] agree.</ref> However, some hold that it is forbidden to wear an electric automatic watch or solar powered watch on Shabbat.<ref> Orchot Shabbat v. 3 26:50 concludes that it is forbidden since one's movements cause the electric charge to cause the watch to function. He also forbids a solar watch. [http://revach.net/ask/article.php?id=1509 Rabbi Moncharsh on revach.net] holds that it is forbidden to wear an electric automatic watch on Shabbat.</ref> | # According to many poskim the same is true of an electric automatic watch that it may be worn on Shabbat.<ref>The reasons for the mechanical self-winding watch seem to apply to the electric recharging watch as well. See above. [http://www.eretzhemdah.org/newsletterArticle.asp?lang=en&pageid=4&cat=7&newsletter=1027&article=3894 Rabbi Daniel Mann on eretzhemdah.org] holds that it is permissible to wear the kinetic watch on Shabbat since the transfer of mechanic energy to electrical energy in a battery back into mechanical energy doesn’t create any circuit and is permitted. Additionally, it is similar to some of the arguments made about the automatic watch (that it is a pesik reisha, shinuy, derech levisha). [http://dinonline.org/2014/09/07/wearing-kinetic-watch-on-shabbos/ Rabbi Pfeffer on dinonline.org], [http://shut.moreshet.co.il/shut2.asp?id=9698 Rabbi Yisrael Rozen], and [http://www.yeshiva.co/ask/?id=4064 Rabbi Li’or on yeshiva.co] agree.</ref> However, some hold that it is forbidden to wear an electric automatic watch or solar powered watch on Shabbat.<ref> Orchot Shabbat v. 3 26:50 concludes that it is forbidden since one's movements cause the electric charge to cause the watch to function. He also forbids a solar watch. [http://revach.net/ask/article.php?id=1509 Rabbi Moncharsh on revach.net] holds that it is forbidden to wear an electric automatic watch on Shabbat.</ref> | ||
# Winding a watch that stopped on Shabbat is forbidden. <ref>Chayei Adam 114:19 writes that it is Biblically forbidden to wind a watch on Shabbat since it is metaken like Eruvin 103a which says if harp string snaps it is a melacha to fix it. The Tiferet Yisrael in Kalkelet Hashabbat no. 38 argues that it isn’t a Biblical prohibition since tying a string on the harp is assembling parts of a instrument but when winding a watch there are no parts being attached. Chazon Ish also asks this but answers that the opinion of the Chayei Adam was that creating a functional unit is considered Boneh even if it isn’t the assemblance of units in a permanent way. In conclusion some hold that winding a stopped watch is a Biblical prohibition and others hold it is only rabbinic but either way it is forbidden. That is the conclusion of the Mishna Brurah 338:15 and Yabia Omer OC 6:35.</ref> | # Winding a watch that stopped on Shabbat is forbidden. <ref>Chayei Adam 114:19 writes that it is Biblically forbidden to wind a watch on Shabbat since it is metaken like Eruvin 103a which says if harp string snaps it is a melacha to fix it. The Tiferet Yisrael in Kalkelet Hashabbat no. 38 argues that it isn’t a Biblical prohibition since tying a string on the harp is assembling parts of a instrument but when winding a watch there are no parts being attached. Chazon Ish also asks this but answers that the opinion of the Chayei Adam was that creating a functional unit is considered Boneh even if it isn’t the assemblance of units in a permanent way. In conclusion some hold that winding a stopped watch is a Biblical prohibition and others hold it is only rabbinic but either way it is forbidden. That is the conclusion of the Mishna Brurah 338:15 and Yabia Omer OC 6:35.</ref> | ||
