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Electricity on Shabbat: Difference between revisions

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* 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>
#Rabbi Shlomo Zalman Auerbach explains that one cannot turn on nor operate an electrical device on Shabbat, to raise or lower its dials. He prohibits "raising the electrical force by turning a lever." As he wrote regarding machines in Minchat Shlomo, raising electrical current increases the heat of metal (lit. the fire of metal) which violates the Biblical principle of "kindling fire". And he prohibits turning down the dials because of Mechabeh, the application of the law of extinguishing fire on Shabbat, which is one of the 39 melachot/activities that are forbidden on Shabbat. (See Minchat Shlomo P. 111)<ref>http://hebrewbooks.org/pdfpager.aspx?req=47989&st=&pgnum=123&hilite=</ref>


===Changing an Existing Current===
===Changing an Existing Current===