Electricity on Shabbat: Difference between revisions
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==Electricity on Shabbat== | ==Electricity on Shabbat== | ||
# It is forbidden to turn on any electric device whether it is plugged into the wall or runs on batteries. <ref>Menuchat Ahava 24:2 holds that the prohibition involved is that by completing the circuit one creates an electric current in the wire like there is a prohibition to create a fire ([[Molid]]) on [[Shabbat]]. | # It is forbidden to turn on any electric device whether it is plugged into the wall or runs on batteries.<ref>Menuchat Ahava 24:2 holds that the prohibition involved is that by completing the circuit one creates an electric current in the wire like there is a prohibition to create a fire ([[Molid]]) on [[Shabbat]]. | ||
* There's is a lengthy discussion about which melacha is involved when using electricity. One suggestion is that it is a violation of [[Mavir]] ([[Lighting a fire]]). See a very interesting comparison of Rav Henkin (Edut LeYisrael p. 151) who seems to compare an electric current to movement of electrons when a person starts to walk or hits a piece of metal and says that’s not called a fire unless the fire is visible. Rabbi Yitzchak Schmelkes Beit Yitzchak Hashmatot to YD 2:31, says that completing a circuit constitutes a rabbinic violation of [[molid]]. In Beitza 23a the gemara prohibits one from adding scent to a garment because of [[molid]]. Similarly, the Beit Yitzchak argues, introducing electricity into a device is [[molid]]. | * There's is a lengthy discussion about which melacha is involved when using electricity. One suggestion is that it is a violation of [[Mavir]] ([[Lighting a fire]]). See a very interesting comparison of Rav Henkin (Edut LeYisrael p. 151) who seems to compare an electric current to movement of electrons when a person starts to walk or hits a piece of metal and says that’s not called a fire unless the fire is visible. Rabbi Yitzchak Schmelkes Beit Yitzchak Hashmatot to YD 2:31, says that completing a circuit constitutes a rabbinic violation of [[molid]]. In Beitza 23a the gemara prohibits one from adding scent to a garment because of [[molid]]. Similarly, the Beit Yitzchak argues, introducing electricity into a device is [[molid]]. | ||
* Rav Shlomo Zalman Auerbach Minchat Shlomo 1:9 says that the two are different because adding a scent to a garment is adding something to it, that it never had before. Electricity on the other hand was put into this device to be activated and deactivated often. Rav Shlomo Zalman concludes that even without light, the halachic precedent has been established to be concerned for a rabbinic prohibition with the activation of electric device. The Chazon Ish OC 50:9, rules that completing a circuit constitutes a violation of the melacha of boneh, building and deactivating a device by opening the circuit would constitute a violation of [[soter]], destroying. Another possibility raised by Heichal Yitzchak 43 is the prohibition of makeh bepatish, delivering the final blow, completing any item in a way that now renders it beneficial. </ref> | * Rav Shlomo Zalman Auerbach Minchat Shlomo 1:9 says that the two are different because adding a scent to a garment is adding something to it, that it never had before. Electricity on the other hand was put into this device to be activated and deactivated often. Rav Shlomo Zalman concludes that even without light, the halachic precedent has been established to be concerned for a rabbinic prohibition with the activation of electric device. The Chazon Ish OC 50:9, rules that completing a circuit constitutes a violation of the melacha of boneh, building and deactivating a device by opening the circuit would constitute a violation of [[soter]], destroying. Another possibility raised by Heichal Yitzchak 43 is the prohibition of makeh bepatish, delivering the final blow, completing any item in a way that now renders it beneficial. </ref> | ||
# According to many poskim it is Biblically forbidden to turn on an incandescent and fluorescent light bulb. However, if one needs to turn on a light for someone who is mortally sick (see [[Medicine on Shabbat]]) one should turn on a fluorescent instead of an incandescent light bulb. <ref>Menuchat Ahava 24:3-4. Incandescent bulbs and halogen bulbs contain filaments that can get extremely hot. The Gemara [[Shabbat]] 42a, discusses the concept of gachelet shel matechet, a glowing hot piece of metal. The Avnei Nezer OC 229 based on the gemara in [[shabbat]] 42a says that according to most Rishonim, heating a piece of metal to the point that it is glowing hot is a biblical violation of havarah, kindling. Rav Shlomo Zalman Auerbach in Minchat Shlomo 1:12, says that since turning on an incandescent bulb ignites a glowing hot metal filament, it would be in violation of havarah from the torah.</ref> | # According to many poskim it is Biblically forbidden to turn on an incandescent and fluorescent light bulb. However, if one needs to turn on a light for someone who is mortally sick (see [[Medicine on Shabbat]]) one should turn on a fluorescent instead of an incandescent light bulb.<ref>Menuchat Ahava 24:3-4. Incandescent bulbs and halogen bulbs contain filaments that can get extremely hot. The Gemara [[Shabbat]] 42a, discusses the concept of gachelet shel matechet, a glowing hot piece of metal. The Avnei Nezer OC 229 based on the gemara in [[shabbat]] 42a says that according to most Rishonim, heating a piece of metal to the point that it is glowing hot is a biblical violation of havarah, kindling. Rav Shlomo Zalman Auerbach in Minchat Shlomo 1:12, says that since turning on an incandescent bulb ignites a glowing hot metal filament, it would be in violation of havarah from the torah.</ref> | ||
===Changing an Existing Current=== | ===Changing an Existing Current=== | ||
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==Using Electric Appliances== | ==Using Electric Appliances== | ||
# According to many poskim it is Biblically forbidden to turn on an oven or warming plate. <ref>Menuchat Ahava 24:3 </ref> | # According to many poskim it is Biblically forbidden to turn on an oven or warming plate.<ref>Menuchat Ahava 24:3 </ref> | ||
# In Israel, the widespread minhag is to leave electric appliances running on [[Shabbat]] even though the electric companies are run by Jews who violate [[Shabbat]]. <ref>Menuchat Ahava 24:1 </ref> | # In Israel, the widespread minhag is to leave electric appliances running on [[Shabbat]] even though the electric companies are run by Jews who violate [[Shabbat]].<ref>Menuchat Ahava 24:1 </ref> | ||
# It is forbidden to turn off or dim an electric light. <ref> While Melamed Lehoil OC 49, Kuntres Gorem HaMalot 185, Maharsham 2:146, Minchat Shlomo pages 85-88 and pages 107-109, Shemirat Shabbat Kehilchatah 13:1 all say this prohibition is rabbinic and this is the conclusion by [http://www.daat.ac.il/DAAT/english/journal/broyde_1.htm Rabbi Jachter and Rabbi Broyde], Machaze Avarham OC 41 and Beit Yitzchak Hashmatot YD 2:31:8 say it is a violation from the torah and this possibility is also raised by Rav Shlomo Zalman. </ref> | # It is forbidden to turn off or dim an electric light.<ref> While Melamed Lehoil OC 49, Kuntres Gorem HaMalot 185, Maharsham 2:146, Minchat Shlomo pages 85-88 and pages 107-109, Shemirat Shabbat Kehilchatah 13:1 all say this prohibition is rabbinic and this is the conclusion by [http://www.daat.ac.il/DAAT/english/journal/broyde_1.htm Rabbi Jachter and Rabbi Broyde], Machaze Avarham OC 41 and Beit Yitzchak Hashmatot YD 2:31:8 say it is a violation from the torah and this possibility is also raised by Rav Shlomo Zalman. </ref> | ||
# It is forbidden to turn off any electric appliance. <ref>Menuchat Ahava 24:5 </ref> | # It is forbidden to turn off any electric appliance.<ref>Menuchat Ahava 24:5 </ref> | ||
===Phones=== | ===Phones=== | ||
# It is forbidden to pick up a phone off the receiver, speak on a phone, or return the phone to the receiver on [[Shabbat]]. <ref> Menuchat Ahava 24:6,8,9. | # It is forbidden to pick up a phone off the receiver, speak on a phone, or return the phone to the receiver on [[Shabbat]].<ref> Menuchat Ahava 24:6,8,9. | ||
* Lifting the Phone: In addition to the problems of circuits or the problem of a light flashing when lifting the phone, Rabbi Levi Yitzchak Halperin in Maaseh Choshev 1:60 argues that starting the dial tone violates the rabbinic prohibition of making a noise, or hashma'at kol. | * Lifting the Phone: In addition to the problems of circuits or the problem of a light flashing when lifting the phone, Rabbi Levi Yitzchak Halperin in Maaseh Choshev 1:60 argues that starting the dial tone violates the rabbinic prohibition of making a noise, or hashma'at kol. | ||
*Dialing: In addition to the problem of circuits being built by dialing a phone, Rabbi Benzion Meir Chai Uziel Mishpatei Uziel 1:13 writes one violates makeh bipatish, delivering the final blow but Chacham Ovadia Yosef in Sh"t Yabia Omer 1:20 disagrees because the phone is a functional object even before one dials. Rabbi Yitzchak Schmelkes Beit Yitzchak Hashmatot YD 2:31 and Rabbi Chaim Ozer Grodzinski Achiezer 4:6 say that one violates the rabbinic prohibition of making a noise, hashmaat kol, in the place where the phone rings. Rav Shlomo Zalman Auerbach Minchat Shlomo pages 75 and 76 argues that maybe since this is indirect and rabbinic one may be lenient. In the Sinai 5705 journal page 152 he argues that since the noise is made in another's house it is possible that the rabbinic prohibition doesn't apply at all because you would never come to fix the object in someone else's house. | *Dialing: In addition to the problem of circuits being built by dialing a phone, Rabbi Benzion Meir Chai Uziel Mishpatei Uziel 1:13 writes one violates makeh bipatish, delivering the final blow but Chacham Ovadia Yosef in Sh"t Yabia Omer 1:20 disagrees because the phone is a functional object even before one dials. Rabbi Yitzchak Schmelkes Beit Yitzchak Hashmatot YD 2:31 and Rabbi Chaim Ozer Grodzinski Achiezer 4:6 say that one violates the rabbinic prohibition of making a noise, hashmaat kol, in the place where the phone rings. Rav Shlomo Zalman Auerbach Minchat Shlomo pages 75 and 76 argues that maybe since this is indirect and rabbinic one may be lenient. In the Sinai 5705 journal page 152 he argues that since the noise is made in another's house it is possible that the rabbinic prohibition doesn't apply at all because you would never come to fix the object in someone else's house. | ||
*Talking into the Phone: Rabbi Yitzchak Schmelkes Beit Yitzchak Hashmatot YD 2:31 asserts that talking into the phone is also a problem of making a noise, or hashmaat kol. [[Rabbi Shlomo Zalman Auerbach]] Minchat Shlomo page 67 and Rabbi Eliezer Waldenberg Tzitz Eliezer 1:20:10 both disagree based on the Rama 338:1 where he rules that the prohibition of making a noise doesn't apply when this is done through a human voice. Since talking into the phone increases the electrical current being used, Rabbi Yitzchak Yaakov Weiss Minchat Yitzchak 3:38 and 3:60 prohibits based on that. Rav Shlomo Zalman Auerbach (Minchat Shlomo page 110) writes that the increase in current is not a problem in appliances where heat is not created.</ref> | *Talking into the Phone: Rabbi Yitzchak Schmelkes Beit Yitzchak Hashmatot YD 2:31 asserts that talking into the phone is also a problem of making a noise, or hashmaat kol. [[Rabbi Shlomo Zalman Auerbach]] Minchat Shlomo page 67 and Rabbi Eliezer Waldenberg Tzitz Eliezer 1:20:10 both disagree based on the Rama 338:1 where he rules that the prohibition of making a noise doesn't apply when this is done through a human voice. Since talking into the phone increases the electrical current being used, Rabbi Yitzchak Yaakov Weiss Minchat Yitzchak 3:38 and 3:60 prohibits based on that. Rav Shlomo Zalman Auerbach (Minchat Shlomo page 110) writes that the increase in current is not a problem in appliances where heat is not created.</ref> | ||
# Some say it is a good practice to unplug the phone before [[Shabbat]] so that if someone calls on [[Shabbat]] one won't hear it ring. <ref>Menuchat Ahava 24:10 </ref> | # Some say it is a good practice to unplug the phone before [[Shabbat]] so that if someone calls on [[Shabbat]] one won't hear it ring.<ref>Menuchat Ahava 24:10 </ref> | ||
===Recorders=== | ===Recorders=== | ||
# 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 3:50, 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. | # 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> | ||
# It is forbidden to press an electric doorbell on [[Shabbat]]. <ref>Menuchat Ahava 24:14 </ref> | # It is forbidden to press an electric doorbell on [[Shabbat]].<ref>Menuchat Ahava 24:14 </ref> | ||
# Some say that it is forbidden to open a door that will cause an electric chime or bell to go off.<ref>Chelkat Yakov 1:78 writes that it is forbidden to enter a door that will cause an electric chime to go off. He explains that even though it is a Shinuy, Melacha Sheino Tzaricha Lgufa, and a Pesik Reisha Dlo Nicha Leh since the concern is a Biblical one of Maavir it is prohibited. He was discussing a device that created sparks when the circuit was closed and he considered those to be a Biblical violation of Shabbat. He also points out that perhaps this isn't considered a Shinuy since that is how the system is set up to be used. However, regarding Yom Tov he is lenient since Molid Esh is only derabbanan. Shemirat Shabbat Khilchata 23:57 agrees that it is forbidden to enter a door with an electric chime or bell.</ref> | # Some say that it is forbidden to open a door that will cause an electric chime or bell to go off.<ref>Chelkat Yakov 1:78 writes that it is forbidden to enter a door that will cause an electric chime to go off. He explains that even though it is a Shinuy, Melacha Sheino Tzaricha Lgufa, and a Pesik Reisha Dlo Nicha Leh since the concern is a Biblical one of Maavir it is prohibited. He was discussing a device that created sparks when the circuit was closed and he considered those to be a Biblical violation of Shabbat. He also points out that perhaps this isn't considered a Shinuy since that is how the system is set up to be used. However, regarding Yom Tov he is lenient since Molid Esh is only derabbanan. Shemirat Shabbat Khilchata 23:57 agrees that it is forbidden to enter a door with an electric chime or bell.</ref> | ||
# If a person has a Smartlock affixed to their door they should deactivate it before Shabbat so that it doesn't register when one opens and closes the door on Shabbat. If one goes to someone else's house with a Smartlock that is active on Shabbat one may open the door since it is only a rabbinic concern, not beneficial to the one opening the door, and a pesik reisha.<ref>See article by [https://www.yutorah.org/lectures/lecture.cfm/901089/Rabbi%20Ike%20Sultan/Can%20you%20use%20Smartlocks,%20Automatic%20Bathrooms,%20and%20Automatic%20Lights%20in%20Hotels%20on%20Shabbat? Rabbi Sultan]</ref> | # If a person has a Smartlock affixed to their door they should deactivate it before Shabbat so that it doesn't register when one opens and closes the door on Shabbat. If one goes to someone else's house with a Smartlock that is active on Shabbat one may open the door since it is only a rabbinic concern, not beneficial to the one opening the door, and a pesik reisha.<ref>See article by [https://www.yutorah.org/lectures/lecture.cfm/901089/Rabbi%20Ike%20Sultan/Can%20you%20use%20Smartlocks,%20Automatic%20Bathrooms,%20and%20Automatic%20Lights%20in%20Hotels%20on%20Shabbat? Rabbi Sultan]</ref> | ||
===Shabbos Elevators=== | ===Shabbos Elevators=== | ||
# It is forbidden to use a regular elevator on [[Shabbat]]. Some allow using a '[[Shabbat]] elevator' which stops at every floor, while others forbid, and some say one may go up in the [[Shabbat]] elevator but not down. It is forbidden to touch the elevator doors when they are closing. <ref>Shemirat Shabbat KeHilchata 23:49 (in the new edition 23:58) permits uses a [[Shabbat]] elevator on [[Shabbat]]. Sefer Maliyot BeShabbat (chapters 1 and 7) holds that one may go up in the elevator but not down. Menuchat Ahava 24:15-6 concludes that one shouldn't use the [[Shabbat]] elevator to go up or down unless there is a great need in which case he is lenient to allow going up in the [[Shabbat]] elevator. Rav Yosef Henkin (Edut LeYisrael p. 121) rules that for someone who's weak to do a mitzvah such as daven with a [[minyan]], one can be lenient to use an elevator on [[Shabbat]] as long as the non-jew is the one who presses the button and not a Jew. He then says one doesn't need to protest someone who is lenient if the non-Jew is pressing the button, but a pious person (baal nefesh) would be strict. </ref> | # It is forbidden to use a regular elevator on [[Shabbat]]. Some allow using a '[[Shabbat]] elevator' which stops at every floor, while others forbid, and some say one may go up in the [[Shabbat]] elevator but not down. It is forbidden to touch the elevator doors when they are closing.<ref>Shemirat Shabbat KeHilchata 23:49 (in the new edition 23:58) permits uses a [[Shabbat]] elevator on [[Shabbat]]. Sefer Maliyot BeShabbat (chapters 1 and 7) holds that one may go up in the elevator but not down. Menuchat Ahava 24:15-6 concludes that one shouldn't use the [[Shabbat]] elevator to go up or down unless there is a great need in which case he is lenient to allow going up in the [[Shabbat]] elevator. Rav Yosef Henkin (Edut LeYisrael p. 121) rules that for someone who's weak to do a mitzvah such as daven with a [[minyan]], one can be lenient to use an elevator on [[Shabbat]] as long as the non-jew is the one who presses the button and not a Jew. He then says one doesn't need to protest someone who is lenient if the non-Jew is pressing the button, but a pious person (baal nefesh) would be strict. </ref> | ||
# Some poskim write that only elderly and sick people should use [[shabbat]] elevators <ref> Or Letzion 2.47.36 </ref> | # Some poskim write that only elderly and sick people should use [[shabbat]] elevators <ref> Or Letzion 2.47.36 </ref> | ||
===Refrigerators=== | ===Refrigerators=== | ||
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* [http://www.yutorah.org/lectures/lecture.cfm/742318/Rabbi_Mordechai_I_Willig/Halacha_Engages_Modernity_-_Part_8_-_Electrical_Appliances_(Part_1) Rabbi Willig (min 33-35)] says that using a water fountain on [[Shabbat]] depends on how long it takes for the motor to turn on. He mentions that one shouldn't use a water fountain which clearly will have the motor go on with a single regular use. However, he did not say this as a definitive ruling but in passing. Note that this wouldn't apply to an electric water fountain that triggers a circuit. See [https://www.yutorah.org/lectures/lecture.cfm/924745/Rabbi%20Ike%20Sultan/Using%20YU%20Water%20Fountains%20on%20Shabbos R' Sultan's note about water fountains at YU]. | * [http://www.yutorah.org/lectures/lecture.cfm/742318/Rabbi_Mordechai_I_Willig/Halacha_Engages_Modernity_-_Part_8_-_Electrical_Appliances_(Part_1) Rabbi Willig (min 33-35)] says that using a water fountain on [[Shabbat]] depends on how long it takes for the motor to turn on. He mentions that one shouldn't use a water fountain which clearly will have the motor go on with a single regular use. However, he did not say this as a definitive ruling but in passing. Note that this wouldn't apply to an electric water fountain that triggers a circuit. See [https://www.yutorah.org/lectures/lecture.cfm/924745/Rabbi%20Ike%20Sultan/Using%20YU%20Water%20Fountains%20on%20Shabbos R' Sultan's note about water fountains at YU]. | ||
* See [http://www.zomet.org.il/Eng/?CategoryID=253&ArticleID=143 Zomet.org] or [http://www.star-k.org/kashrus/kk-cooling-keepcool.htm star-k.org] for details on other problems with refrigerators. </ref> | * See [http://www.zomet.org.il/Eng/?CategoryID=253&ArticleID=143 Zomet.org] or [http://www.star-k.org/kashrus/kk-cooling-keepcool.htm star-k.org] for details on other problems with refrigerators. </ref> | ||
# If one forgot to disable the light he is permitted to ask a gentile to open or close the refrigerator for him. <ref> Yalkut Yosef Chelek 4 [[Shabbat]] 5 page 229, Iggerot Moshe OC 2:68, and Shemirat Shabbat Kehilchatah 3:31. The aforementioned poskim all reject the opinion of the Aruch either because psik reishe dilo nicha leih is not permitted and they also argue that it is nicha leih because had it not been [[shabbat]] one would certainly want the light to help him see (see minchat shlomo page 91), and say that one should get a gentile to do it for him. [http://www.daat.ac.il/DAAT/english/journal/broyde_1.htm Rabbi Broyde and Rabbi Jachter] permit even asking a Jew who doesn't know that the light will turn on as this would fall under the category of mitasek. Iggerot Moshe OC 2:68 and Shemirat Shabbat Kehilchitah 31:1 also permit hinting to the gentile to disable the light so that the refrigerator could be used for the remainder of [[shabbat]], but not telling him directly. </ref> | # If one forgot to disable the light he is permitted to ask a gentile to open or close the refrigerator for him.<ref> Yalkut Yosef Chelek 4 [[Shabbat]] 5 page 229, Iggerot Moshe OC 2:68, and Shemirat Shabbat Kehilchatah 3:31. The aforementioned poskim all reject the opinion of the Aruch either because psik reishe dilo nicha leih is not permitted and they also argue that it is nicha leih because had it not been [[shabbat]] one would certainly want the light to help him see (see minchat shlomo page 91), and say that one should get a gentile to do it for him. [http://www.daat.ac.il/DAAT/english/journal/broyde_1.htm Rabbi Broyde and Rabbi Jachter] permit even asking a Jew who doesn't know that the light will turn on as this would fall under the category of mitasek. Iggerot Moshe OC 2:68 and Shemirat Shabbat Kehilchitah 31:1 also permit hinting to the gentile to disable the light so that the refrigerator could be used for the remainder of [[shabbat]], but not telling him directly. </ref> | ||
# If the light is left on and one finds a way to open the refrigerator the food inside isn't mutkzeh.<ref>Shemirat Shabbat Kehilchata ch. 10 fnt. 44 explains that it isn't muktzeh since turning on the light is merely an impediment (Magen Avraham 518:14 from Ran and Rashba Beitzah 31b) and also there are permitted ways to get a refrigerator to open a refrigerator with a light on.</ref> | # If the light is left on and one finds a way to open the refrigerator the food inside isn't mutkzeh.<ref>Shemirat Shabbat Kehilchata ch. 10 fnt. 44 explains that it isn't muktzeh since turning on the light is merely an impediment (Magen Avraham 518:14 from Ran and Rashba Beitzah 31b) and also there are permitted ways to get a refrigerator to open a refrigerator with a light on.</ref> | ||
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===Hearing Aids and Microphones=== | ===Hearing Aids and Microphones=== | ||
# Someone who's hard of hearing may use a hearing aid which was turned on before [[Shabbat]]. It's proper to attached a piece of scotch tape on the button so one doesn't come to turn it off on [[Shabbat]]. <ref>Menuchat Ahava 24:11, Sh"t Yabia Omer 1:19(19), Minchat Yitzchak 2:17-8, 3:41, Minchat Shlomo 1:9, Tzitz Eliezer 6:6, Shemirat Shabbat Kihilchita 34:28. Rav Shlomo Zalman in his teshuva Minchat Shlomo 1:9 is dealing with microphones and concludes that a change in a voltage of a current isn't molid but still using a microphone is forbidden since it is audible and is a violation of Avsha Milta, degrading Shabbat. However, regarding hearing aids the Shaarim Metzuyim Bhalacha v. 2 p. 137 80:39:5 cites a letter from Rav Shlomo Zalman Auerbach that it is permitted to turn up a hearing aid on Shabbat and as there's no issue of muktzeh with a hearing aid that is already on. Shemirat Shabbat Kehilchata 34:28 confirms this. Chelkat Yakov 119 forbids using a hearing aid on Shabbat because he holds that connecting the circuit is Biblical as it created sparks (according to the science of that time which is no longer the case) and he leaves it unresolved if it is permitted to use if was already functioning before Shabbat.</ref> | # Someone who's hard of hearing may use a hearing aid which was turned on before [[Shabbat]]. It's proper to attached a piece of scotch tape on the button so one doesn't come to turn it off on [[Shabbat]].<ref>Menuchat Ahava 24:11, Sh"t Yabia Omer 1:19(19), Minchat Yitzchak 2:17-8, 3:41, Minchat Shlomo 1:9, Tzitz Eliezer 6:6, Shemirat Shabbat Kihilchita 34:28. Rav Shlomo Zalman in his teshuva Minchat Shlomo 1:9 is dealing with microphones and concludes that a change in a voltage of a current isn't molid but still using a microphone is forbidden since it is audible and is a violation of Avsha Milta, degrading Shabbat. However, regarding hearing aids the Shaarim Metzuyim Bhalacha v. 2 p. 137 80:39:5 cites a letter from Rav Shlomo Zalman Auerbach that it is permitted to turn up a hearing aid on Shabbat and as there's no issue of muktzeh with a hearing aid that is already on. Shemirat Shabbat Kehilchata 34:28 confirms this. Chelkat Yakov 119 forbids using a hearing aid on Shabbat because he holds that connecting the circuit is Biblical as it created sparks (according to the science of that time which is no longer the case) and he leaves it unresolved if it is permitted to use if was already functioning before Shabbat.</ref> | ||
# It is permitted to use a hearing aid on Shabbat even if it automatically adjusts the volume depending on the loudness of the environment.<ref>Rav Asher Weiss in Minchat Asher 1:31:1 writes that using hearing aids which automatically adjust depending on your surrounding. In a quiet place it amplifies noise and in a loud place it lowers the amplification. He explains that it is permitted to use them and move around while wearing them since either that isn't considered your action that the device changed its functionality or that it is but it is permitted since the accomplishments of the change in voltage in the circuit are insignificant and don't violate makeh bpatish, boneh, or molid. The automatic mode of hearing aids is described here: https://www.boystownhospital.org/knowledgeCenter/articles/hearing/Pages/PutYourHearingAidsOnAutomatic.aspx.</ref> | # It is permitted to use a hearing aid on Shabbat even if it automatically adjusts the volume depending on the loudness of the environment.<ref>Rav Asher Weiss in Minchat Asher 1:31:1 writes that using hearing aids which automatically adjust depending on your surrounding. In a quiet place it amplifies noise and in a loud place it lowers the amplification. He explains that it is permitted to use them and move around while wearing them since either that isn't considered your action that the device changed its functionality or that it is but it is permitted since the accomplishments of the change in voltage in the circuit are insignificant and don't violate makeh bpatish, boneh, or molid. The automatic mode of hearing aids is described here: https://www.boystownhospital.org/knowledgeCenter/articles/hearing/Pages/PutYourHearingAidsOnAutomatic.aspx.</ref> | ||
# It is forbidden to use a microphone on Shabbat.<Ref>Rav Shlomo Zalman Auerbach in Minchat Shlomo 1:9 s.v. ach writes that even if one solves all melacha issues with speaking into a microphone on Shabbat nonetheless it is forbidden since it creates an audible noise which is a violation of Avsha Milta (Shabbat 18a, Rama 252:5), which is Zilzul Shabbat. One of his precedents is the Nodeh Byehuda OC 30 regarding umbrellas where there is a concern of Zilzul Shabbat even if it was open before Shabbat.</ref> | # It is forbidden to use a microphone on Shabbat.<Ref>Rav Shlomo Zalman Auerbach in Minchat Shlomo 1:9 s.v. ach writes that even if one solves all melacha issues with speaking into a microphone on Shabbat nonetheless it is forbidden since it creates an audible noise which is a violation of Avsha Milta (Shabbat 18a, Rama 252:5), which is Zilzul Shabbat. One of his precedents is the Nodeh Byehuda OC 30 regarding umbrellas where there is a concern of Zilzul Shabbat even if it was open before Shabbat.</ref> | ||
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# Someone with Alzheimer's or an Autistic child who needs to wear an electronic GPS device to track his location and even alert a responsible party in cases of danger may do so on Shabbat.<ref>Minchat Asher 1:31:3</ref> | # Someone with Alzheimer's or an Autistic child who needs to wear an electronic GPS device to track his location and even alert a responsible party in cases of danger may do so on Shabbat.<ref>Minchat Asher 1:31:3</ref> | ||
===Dishwashers=== | ===Dishwashers=== | ||
# It is forbidden to set a timer before [[shabbat]] to automatically operate a dishwasher on [[shabbat]]. <ref> Shemirat Shabbat Kehilchata 12:37, Menuchat Ahava 1.24.31. The Shemirat Shabbat Kehilchata's proof is that when you close the door even though it is totally off it is considered a grama when the melacha will occur later like we find in Mishna Brurah 253:100. [http://www.yutorah.org/sidebar/lecture.cfm/859947/rabbi-hershel-schachter/status-and-applications-of-use-of-electric-appliances-and-devices-on-shabbat/ Rav Hershel Schachter (Electricity on Shabbat min 35)] explained that it was forbidden to use a dishwasher on Shabbat even if it is going to turn on at a later time since closing the door is considered a grama for when the timer will turn on. | # It is forbidden to set a timer before [[shabbat]] to automatically operate a dishwasher on [[shabbat]].<ref> Shemirat Shabbat Kehilchata 12:37, Menuchat Ahava 1.24.31. The Shemirat Shabbat Kehilchata's proof is that when you close the door even though it is totally off it is considered a grama when the melacha will occur later like we find in Mishna Brurah 253:100. [http://www.yutorah.org/sidebar/lecture.cfm/859947/rabbi-hershel-schachter/status-and-applications-of-use-of-electric-appliances-and-devices-on-shabbat/ Rav Hershel Schachter (Electricity on Shabbat min 35)] explained that it was forbidden to use a dishwasher on Shabbat even if it is going to turn on at a later time since closing the door is considered a grama for when the timer will turn on. | ||
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). 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> | # 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> | ||
# However, if it is still running some poskim hold that it is permitted to wind it on Shabbat, however, others hold it is forbidden.<ref>Yabia Omer 6:35 explains that it is permitted since the whole issue with winding the watch is that it is equal to fixing it but if it didn’t stop that isn’t considered fixing it to prevent it from stopping. Even though the Mishna Brurah 338:15 is strict unless there is a need for someone sick unless you can find a non-Jew. Piskei Teshuvot 338:9 cites the Daat Torah 338, Minchat Shabbat 80:240, and Darkei Chaim VShalom 419 as lenient. Teshuvot Vhanahagot 1:202 quotes that Rav Chaim Ozer was lenient. In his discussion, Yabia Omer has some interesting comparisons to discuss this halacha. He writes that it is comparable to the Nodeh Beyehuda YD 201:35 who says that you can put boards into the mikveh and that’s not a problem of having a mikveh formed with something that’s mekabel tumah since it didn’t start like that even if those boards are preventing the mikveh from becoming invalid. Similarly, the Trumat Hadeshen writes that you can preemptively fix the letters of a mezuzah so that they don’t fade too much and it isn’t considered an issue of not writing the mezuzah in order. Lastly, it is like the Eliya Rabba who says that you can soak meat that was out for three days since you’re keeping status quo and just preventing its status from becoming forbidden and that isn’t considered fixing (tikun).</ref> | # However, if it is still running some poskim hold that it is permitted to wind it on Shabbat, however, others hold it is forbidden.<ref>Yabia Omer 6:35 explains that it is permitted since the whole issue with winding the watch is that it is equal to fixing it but if it didn’t stop that isn’t considered fixing it to prevent it from stopping. Even though the Mishna Brurah 338:15 is strict unless there is a need for someone sick unless you can find a non-Jew. Piskei Teshuvot 338:9 cites the Daat Torah 338, Minchat Shabbat 80:240, and Darkei Chaim VShalom 419 as lenient. Teshuvot Vhanahagot 1:202 quotes that Rav Chaim Ozer was lenient. In his discussion, Yabia Omer has some interesting comparisons to discuss this halacha. He writes that it is comparable to the Nodeh Beyehuda YD 201:35 who says that you can put boards into the mikveh and that’s not a problem of having a mikveh formed with something that’s mekabel tumah since it didn’t start like that even if those boards are preventing the mikveh from becoming invalid. Similarly, the Trumat Hadeshen writes that you can preemptively fix the letters of a mezuzah so that they don’t fade too much and it isn’t considered an issue of not writing the mezuzah in order. Lastly, it is like the Eliya Rabba who says that you can soak meat that was out for three days since you’re keeping status quo and just preventing its status from becoming forbidden and that isn’t considered fixing (tikun).</ref> | ||
# Wearing a smartwatch or fitbit on Shabbat is forbidden.<ref>[http://www.zomet.org.il/?CategoryID=398&ArticleID=1050 Rabbi Rozen on zomet.org] explains that even if all the observable noises and notifications that the watch makes are turned off simply wearing it is forbidden since it isn't appropriate for Shabbat.</ref> | # Wearing a smartwatch or fitbit on Shabbat is forbidden.<ref>[http://www.zomet.org.il/?CategoryID=398&ArticleID=1050 Rabbi Rozen on zomet.org] explains that even if all the observable noises and notifications that the watch makes are turned off simply wearing it is forbidden since it isn't appropriate for Shabbat.</ref> | ||
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# It is permitted before [[Shabbat]] to set a timer for lights or other electric appliances to go on or off on [[Shabbat]].<ref>Sh"t Maharam Shik 157, Chazon Ish 38:2, Shemirat Shabbat KeHilchata 13:26, Menuchat Ahava 24:30, Sh"t Yabia Omer 3:17. | # It is permitted before [[Shabbat]] to set a timer for lights or other electric appliances to go on or off on [[Shabbat]].<ref>Sh"t Maharam Shik 157, Chazon Ish 38:2, Shemirat Shabbat KeHilchata 13:26, Menuchat Ahava 24:30, Sh"t Yabia Omer 3:17. | ||
* Ben Yehuda (responsa 151) writes that it is rabbinically forbidden to use a timer that turns on a light on Shabbat. He writes that there's no Biblical melacha to set a timer since it was all put in place before Shabbat as per the Nemukei Yosef b"k 10a. However, he writes that it is rabbinically forbidden based on the opinion of Rabba in Shabbat 18a who says that it is a disgrace to Shabbat to leave grain in a water-grinder that will become ground on Shabbat. Rav Yosef in the gemara argues that it is permitted and only forbidden according to Bet Shamai. The Shulchan Aruch 252:5 rules like Rav Yosef but the Rama is stringent unless it will result in a loss. He says that based on the Rama it is forbidden to set a timer before Shabbat and even though everyone knows that it is set before Shabbat that logic isn't applicable if the melacha in question is Biblically forbidden. The Kaf Hachaim 252:73 cites this opinion. Ish Matzliach (v. 3 p. 17) writes that his father wouldn’t use timers even for the lights.</ref> | * Ben Yehuda (responsa 151) writes that it is rabbinically forbidden to use a timer that turns on a light on Shabbat. He writes that there's no Biblical melacha to set a timer since it was all put in place before Shabbat as per the Nemukei Yosef b"k 10a. However, he writes that it is rabbinically forbidden based on the opinion of Rabba in Shabbat 18a who says that it is a disgrace to Shabbat to leave grain in a water-grinder that will become ground on Shabbat. Rav Yosef in the gemara argues that it is permitted and only forbidden according to Bet Shamai. The Shulchan Aruch 252:5 rules like Rav Yosef but the Rama is stringent unless it will result in a loss. He says that based on the Rama it is forbidden to set a timer before Shabbat and even though everyone knows that it is set before Shabbat that logic isn't applicable if the melacha in question is Biblically forbidden. The Kaf Hachaim 252:73 cites this opinion. Ish Matzliach (v. 3 p. 17) writes that his father wouldn’t use timers even for the lights.</ref> | ||
# One may set an alarm clock before [[Shabbat]] even though it will make noise on [[Shabbat]]. <ref>The [[Shabbos]] Home (Rabbi Simcha Cohen, vol 2, pg 537) and Sh"t Maharshag YD 1:7(2) permit. However, Sh"t Igrot Moshe 4:70(4) only permits if it is not heard outside his personal room. See Shemirat Shabbat KeHilchata 28:29 (and 28:30 in new edition) who permits before [[Shabbat]] for mitzvah purposes setting a mechanical alarm clock that involves removing a pin (see there). </ref> See [[Making music on Shabbat]]. | # One may set an alarm clock before [[Shabbat]] even though it will make noise on [[Shabbat]].<ref>The [[Shabbos]] Home (Rabbi Simcha Cohen, vol 2, pg 537) and Sh"t Maharshag YD 1:7(2) permit. However, Sh"t Igrot Moshe 4:70(4) only permits if it is not heard outside his personal room. See Shemirat Shabbat KeHilchata 28:29 (and 28:30 in new edition) who permits before [[Shabbat]] for mitzvah purposes setting a mechanical alarm clock that involves removing a pin (see there). </ref> See [[Making music on Shabbat]]. | ||
# 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> | ||
# It is forbidden to leave a bread machine on a delayed start timer to bake fresh bread on Shabbat because even if one does so the bread will be muktzeh.<ref>Divrei Dovid 4:21 explains that fresh bread cooked on Shabbat is muktzeh since the flour during ben hashemashot wasn't edible. He explains that it isn't considered gamru biyadey adam since 1) Since it wasn't baked before Shabbat it is considered like it was totally rejected (dachinhu byadayim). 2) It didn't start during ben hashemashot. 3) Nolad is more serious than other muktzeh.</ref> | # It is forbidden to leave a bread machine on a delayed start timer to bake fresh bread on Shabbat because even if one does so the bread will be muktzeh.<ref>Divrei Dovid 4:21 explains that fresh bread cooked on Shabbat is muktzeh since the flour during ben hashemashot wasn't edible. He explains that it isn't considered gamru biyadey adam since 1) Since it wasn't baked before Shabbat it is considered like it was totally rejected (dachinhu byadayim). 2) It didn't start during ben hashemashot. 3) Nolad is more serious than other muktzeh.</ref> | ||
# Some say that one should not leave one's website open and available for people to use on Shabbat and it is more serious than Lifnei Iver or Shevitat Kelim since Jews are doing melacha with your property.<ref>Rav Elyashiv cited by Kedushat HaShabbat (R' Moshe Harari pp. 98-101). See also [https://www.hebrewbooks.org/52532 Meishiv Mishpat 1:1].</ref> | # Some say that one should not leave one's website open and available for people to use on Shabbat and it is more serious than Lifnei Iver or Shevitat Kelim since Jews are doing melacha with your property.<ref>Rav Elyashiv cited by Kedushat HaShabbat (R' Moshe Harari pp. 98-101). See also [https://www.hebrewbooks.org/52532 Meishiv Mishpat 1:1].</ref> | ||
==Sending Email on Friday== | ==Sending Email on Friday== | ||
# 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> | # 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, one may not send an email 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> | # However, one may not send an email 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> | ||
# It is permitted to send a fax from Israel to America when it is no longer Shabbat in Israel.<ref>Yalkut Yosef Shabbat 5752 v. 2 p. 243 307:3:9 is lenient to send a fax from Israel to America after Shabbat in Israel unless he is sending it to a non-observant Jew who will move the paper on Shabbat or read something that he's not supposed to read on Shabbat.</ref> | # It is permitted to send a fax from Israel to America when it is no longer Shabbat in Israel.<ref>Yalkut Yosef Shabbat 5752 v. 2 p. 243 307:3:9 is lenient to send a fax from Israel to America after Shabbat in Israel unless he is sending it to a non-observant Jew who will move the paper on Shabbat or read something that he's not supposed to read on Shabbat.</ref> | ||
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# One is permitted to read by wax candles <Ref> Bach in name of Maharshal, Taz, and Magen Avraham (in cases of need) permit reading by a wax candle because there’s no Gezerah of tilting the wick. However, S”A 275:1 forbids reading by a wax candle because one will come to trim the wick and maybe extinguish it. Eliyah Rabba and Buir HaGra concur. The Mishna Brurah 275:4, however, permits reading by wax candles because nowadays the wax produces a clear flame and there is no issue that one will tilt or trim the wick. Similarly, Yalkut Yosef (Kitzur S”A 275:3) is lenient based on Rav Ovadyah’s later writing in Halichot Olam 3 (unlike his stringent ruling in Sh”t Yabia Omer 1:16:6-9 and Yalkut Yosef (first edition [[Shabbat]] vol 1 pg 317)). Kitzur Shulchan Aruch 80:1 writes that the minhag is to permit reading by a wax candle, however, one should put up a sign to remind oneself to trim the wick. </ref> | # One is permitted to read by wax candles <Ref> Bach in name of Maharshal, Taz, and Magen Avraham (in cases of need) permit reading by a wax candle because there’s no Gezerah of tilting the wick. However, S”A 275:1 forbids reading by a wax candle because one will come to trim the wick and maybe extinguish it. Eliyah Rabba and Buir HaGra concur. The Mishna Brurah 275:4, however, permits reading by wax candles because nowadays the wax produces a clear flame and there is no issue that one will tilt or trim the wick. Similarly, Yalkut Yosef (Kitzur S”A 275:3) is lenient based on Rav Ovadyah’s later writing in Halichot Olam 3 (unlike his stringent ruling in Sh”t Yabia Omer 1:16:6-9 and Yalkut Yosef (first edition [[Shabbat]] vol 1 pg 317)). Kitzur Shulchan Aruch 80:1 writes that the minhag is to permit reading by a wax candle, however, one should put up a sign to remind oneself to trim the wick. </ref> | ||
# One is permitted to read by electric lights. <Ref> Sh"t Yechave Daat 3:20, Sh"t Rivivot Ephraim 1:222:27. <br /> | # One is permitted to read by electric lights. <Ref> Sh"t Yechave Daat 3:20, Sh"t Rivivot Ephraim 1:222:27. <br /> | ||
* Sh”t Yacheve Daat 6:20 holds that even those who are strict by a kerosene lamp will allow an electric light because it produces a clear flame and gives off a lot of light [the leniency of a kerosene lamp, which produces a lot of light and the leniency of a wax candle, which produces a clear flame.] Additionally, he adds that we shouldn’t extend Chazal’s Gezerah of a oil and wick to electric lights because we aren’t allowed to make new Gezerah’s or add to preexisting ones (Magen Avraham 301:58). Thus, Sas Anochi (Kuntres Rach VeTov pg 78c) and Sh”t Yashkil LeAvdi O”C 2:9 who are strict by a kerosene lamp if it’s made of multiple candles, allow electric lights. Sh”t Yachave Daat also argues that electric lights are permitted because Chazal only forbad tilting a wick already in oil but permitted adding more oil [the same distinction is found in Sh”t Igrot Moshe O”C 93 concerning leaving food from before [[Shabbat]] on a gas flame.] On the other hand, Sh”t Shoel VeNishal 1:76 forbids reading even by electric lights based on a Hagahot Asheri ([[Shabbat]] 12b) who is uncertain about a wax candle even though there is no issue of tilting the wick and so too any lighting should be forbidden even though there is no issue of tilting (because of Lo Palug Rabanan, the Rabbis didn’t differentiate in their Gezerah’s). However Sh”t Yacheve Daat (in the footnote) argues that we shouldn’t forbid because of the Hagahot Asheri’s uncertainty as this is a matter of Derabanan (see there as there are some Achronim who say Safek Derabanan LeKula doesn’t apply to a Safek that we don’t know the halacha. Additionally Bnei Tzion 265:3 explains that the Hagahot Asheri was uncertain when a Gezerah doesn’t have any reason to apply whether it should be permissible or forbidden as the Rabbi’s extend their Gezerah to any case as in the case of a mirror that’s not sharp enough to cut hair ([[Shabbat]] 149a) as Rabbenu Moshe (quoted in Ran) rules. However, since in the case of [[Shabbat]] 149a, Rif, Rambam, and Rosh, S”A 302:13 permit mirrors that can’t cut, then, so too wax candles aren’t forbidden([[Getting_Dressed#cite_ref-3|Getting Dressed]]). </ref> This is true even if there is a dimmer on the light which controls the amount of light. <ref> Sh"t Yechave Daat 6:20 </ref> | * Sh”t Yacheve Daat 6:20 holds that even those who are strict by a kerosene lamp will allow an electric light because it produces a clear flame and gives off a lot of light [the leniency of a kerosene lamp, which produces a lot of light and the leniency of a wax candle, which produces a clear flame.] Additionally, he adds that we shouldn’t extend Chazal’s Gezerah of a oil and wick to electric lights because we aren’t allowed to make new Gezerah’s or add to preexisting ones (Magen Avraham 301:58). Thus, Sas Anochi (Kuntres Rach VeTov pg 78c) and Sh”t Yashkil LeAvdi O”C 2:9 who are strict by a kerosene lamp if it’s made of multiple candles, allow electric lights. Sh”t Yachave Daat also argues that electric lights are permitted because Chazal only forbad tilting a wick already in oil but permitted adding more oil [the same distinction is found in Sh”t Igrot Moshe O”C 93 concerning leaving food from before [[Shabbat]] on a gas flame.] On the other hand, Sh”t Shoel VeNishal 1:76 forbids reading even by electric lights based on a Hagahot Asheri ([[Shabbat]] 12b) who is uncertain about a wax candle even though there is no issue of tilting the wick and so too any lighting should be forbidden even though there is no issue of tilting (because of Lo Palug Rabanan, the Rabbis didn’t differentiate in their Gezerah’s). However Sh”t Yacheve Daat (in the footnote) argues that we shouldn’t forbid because of the Hagahot Asheri’s uncertainty as this is a matter of Derabanan (see there as there are some Achronim who say Safek Derabanan LeKula doesn’t apply to a Safek that we don’t know the halacha. Additionally Bnei Tzion 265:3 explains that the Hagahot Asheri was uncertain when a Gezerah doesn’t have any reason to apply whether it should be permissible or forbidden as the Rabbi’s extend their Gezerah to any case as in the case of a mirror that’s not sharp enough to cut hair ([[Shabbat]] 149a) as Rabbenu Moshe (quoted in Ran) rules. However, since in the case of [[Shabbat]] 149a, Rif, Rambam, and Rosh, S”A 302:13 permit mirrors that can’t cut, then, so too wax candles aren’t forbidden([[Getting_Dressed#cite_ref-3|Getting Dressed]]). </ref> This is true even if there is a dimmer on the light which controls the amount of light.<ref> Sh"t Yechave Daat 6:20 </ref> | ||
==Using a light bulb for [[Shabbat]] Candles and Havdala== | ==Using a light bulb for [[Shabbat]] Candles and Havdala== | ||
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==Static Electricity== | ==Static Electricity== | ||
# According to most poskim, the unintentional creation of static electricity from clothes is not a halachic problem. <ref> Shemirat Shabbat Kihilchita 15:72 quoting Rav Shlomo Zalman Auerbach. Tzitz Eliezer 7:10 writes that there is no problem because the static makes no real impact in that small amount of time, there is no precedent for this type of electricity in the times of the mishkan, and this type of electricity cannot start a fire at all. Sh"t Yabia Omer 5:27 and Sh"t Yechave Daat 2:46 says it is permitted because one does not intend for them, and doesn't care for them. (psik reishe dilo nicha leh.) Chazon Ish OC 50:5 rules stringently in this however. </ref> | # According to most poskim, the unintentional creation of static electricity from clothes is not a halachic problem.<ref> Shemirat Shabbat Kihilchita 15:72 quoting Rav Shlomo Zalman Auerbach. Tzitz Eliezer 7:10 writes that there is no problem because the static makes no real impact in that small amount of time, there is no precedent for this type of electricity in the times of the mishkan, and this type of electricity cannot start a fire at all. Sh"t Yabia Omer 5:27 and Sh"t Yechave Daat 2:46 says it is permitted because one does not intend for them, and doesn't care for them. (psik reishe dilo nicha leh.) Chazon Ish OC 50:5 rules stringently in this however. </ref> | ||
==Yom Tov== | ==Yom Tov== | ||
# Most poskim agree that turning on or off an incandescent light on [[Yom Tov]] is forbidden rabbinically. Although in the past some poskim permitted turning on lights on [[Yom Tov]], it was based on an incorrect assumption. Thus, the accepted minhag is to follow the poskim who say that it's forbidden. <ref> It is permissible on [[Yom Tov]] to add to or transfer an already existing flame and even lighting a new flame is only a rabbinic prohibition. Shulchan Aruch 502:1 and Beiur Halacha "Ein Motziin." See Sh"t Yabia Omer OC 1:19 and poskim cited there. The poskim who permit it include Rav Yechiel Michel Epstein (The Aruch Hashulchan) in a letter published in Kovetz Vaad Chachamim 1 (Shevat 5663), Even Yekara 3:168, Ohr Chadash page 64, Rabbi Tzvi [[Pesach]] Frank in Kol Torah 5694, Mishpetei Uziel OC 19, Hilchot Rabata LeShabbata 1:7, as well as more poskim quoted in Chashmal Behalacha 2:5. However, [http://www.daat.ac.il/daat/english/journal/broyde_1.htm Rabbi Broyde and Rabbi Jachter] explain that this is based on a faulty understanding of electricity that completing a circuit only transfers an existing flame, which isn't correct. Thus, they reject these arguments and conclude that since this is not the view of the majority of the poskim it is prohibited. The poskim who forbid turning on a light on [[Yom Tov]] include Rav Ovadia Yosef in Sh"t Yabia Omer 1:19, Rav Moshe Feinstein in Iggerot Moshe OC 1:115, Chelkat Yaakov 1:51, Yaskil Avdi 2:10 and 4:27:3, and Shemirat Shabbat Kehilchatah 13:2. </ref> | # Most poskim agree that turning on or off an incandescent light on [[Yom Tov]] is forbidden rabbinically. Although in the past some poskim permitted turning on lights on [[Yom Tov]], it was based on an incorrect assumption. Thus, the accepted minhag is to follow the poskim who say that it's forbidden.<ref> It is permissible on [[Yom Tov]] to add to or transfer an already existing flame and even lighting a new flame is only a rabbinic prohibition. Shulchan Aruch 502:1 and Beiur Halacha "Ein Motziin." See Sh"t Yabia Omer OC 1:19 and poskim cited there. The poskim who permit it include Rav Yechiel Michel Epstein (The Aruch Hashulchan) in a letter published in Kovetz Vaad Chachamim 1 (Shevat 5663), Even Yekara 3:168, Ohr Chadash page 64, Rabbi Tzvi [[Pesach]] Frank in Kol Torah 5694, Mishpetei Uziel OC 19, Hilchot Rabata LeShabbata 1:7, as well as more poskim quoted in Chashmal Behalacha 2:5. However, [http://www.daat.ac.il/daat/english/journal/broyde_1.htm Rabbi Broyde and Rabbi Jachter] explain that this is based on a faulty understanding of electricity that completing a circuit only transfers an existing flame, which isn't correct. Thus, they reject these arguments and conclude that since this is not the view of the majority of the poskim it is prohibited. The poskim who forbid turning on a light on [[Yom Tov]] include Rav Ovadia Yosef in Sh"t Yabia Omer 1:19, Rav Moshe Feinstein in Iggerot Moshe OC 1:115, Chelkat Yaakov 1:51, Yaskil Avdi 2:10 and 4:27:3, and Shemirat Shabbat Kehilchatah 13:2. </ref> | ||
==Using a Smart Phone on Shabbos== | ==Using a Smart Phone on Shabbos== | ||
# Battery: The battery can get extremely hot from use - this can be a potential issur derabanon of making a fire (Mavir).<ref> The Rambam (Shabbat 12:1) holds that heating a metal in order to temper it is a Biblical violation of lighting a fire (Mavir).</ref> | # Battery: The battery can get extremely hot from use - this can be a potential issur derabanon of making a fire (Mavir).<ref> The Rambam (Shabbat 12:1) holds that heating a metal in order to temper it is a Biblical violation of lighting a fire (Mavir).</ref> | ||
# Writing: Text that is typed and erased remains on the phones hard drive. This text potentially involves an issue of writing (Koseiv), erasing (Mochek) and improving the functionality of the phone (Metaken). | # Writing: Text that is typed and erased remains on the phones hard drive. This text potentially involves an issue of writing (Koseiv), erasing (Mochek) and improving the functionality of the phone (Metaken). | ||
# Sounds: Sounds are made when a user notifies or is notified of new messages, etc. This is a potential issur derabanon of making noise (Hashma'as Kol) which is assur.<Ref>Rama 245</ref> | # Sounds: Sounds are made when a user notifies or is notified of new messages, etc. This is a potential issur derabanon of making noise (Hashma'as Kol) which is assur.<Ref>Rama 245</ref> | ||
# Screen: Turning the screen on and off is similar to turning a regular light on and off - this can be an issur derabanon of making a fire (Mavir) according to some Poiskim. <ref>See Rabbi Shmuel Eliyahu in [http://www.yutorah.org/lectures/lecture.cfm/803195/Rabbi_Shmuel_Eliyahu/%D7%93%D7%99%D7%95%D7%9F_%D7%94%D7%94%D7%9C%D7%9B%D7%AA%D7%99_%D7%A2%D7%9C_%D7%A9%D7%99%D7%9E%D7%95%D7%A9_%D7%91%D7%98%D7%90%D7%91%D7%9C%D7%98_%D7%9C%D7%90%D7%A0%D7%A9%D7%99_%D7%A2%D7%96%D7%A8%D7%94_%D7%A8%D7%90%D7%A9%D7%95%D7%A0%D7%94_%D7%91%D7%A9%D7%91%D7%AA a shiur on yutorah.org] about using tablets on Shabbat for the Magen Dovid Adom and doctors in hospitals. He takes for granted that writing on tablets is forbidden for regular use but discusses its use for doctors.</ref> | # Screen: Turning the screen on and off is similar to turning a regular light on and off - this can be an issur derabanon of making a fire (Mavir) according to some Poiskim.<ref>See Rabbi Shmuel Eliyahu in [http://www.yutorah.org/lectures/lecture.cfm/803195/Rabbi_Shmuel_Eliyahu/%D7%93%D7%99%D7%95%D7%9F_%D7%94%D7%94%D7%9C%D7%9B%D7%AA%D7%99_%D7%A2%D7%9C_%D7%A9%D7%99%D7%9E%D7%95%D7%A9_%D7%91%D7%98%D7%90%D7%91%D7%9C%D7%98_%D7%9C%D7%90%D7%A0%D7%A9%D7%99_%D7%A2%D7%96%D7%A8%D7%94_%D7%A8%D7%90%D7%A9%D7%95%D7%A0%D7%94_%D7%91%D7%A9%D7%91%D7%AA a shiur on yutorah.org] about using tablets on Shabbat for the Magen Dovid Adom and doctors in hospitals. He takes for granted that writing on tablets is forbidden for regular use but discusses its use for doctors.</ref> | ||
# Charging: When you plug the wall charger into or out of the phone constitutes a violation of creating or breaking a circuit which is forbidden.<Ref>See above.</ref> | # Charging: When you plug the wall charger into or out of the phone constitutes a violation of creating or breaking a circuit which is forbidden.<Ref>See above.</ref> | ||
