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10

Now that the app is actually out and we can see what it does, the Tzomet institute has an article about it. In summary, they say it is forbidden. They take issue with the app's primary claim, which is that the app utilizes a time delay and calls this a grama. The Tzomet institute (which is a pioneer in the development of grama based devices and has some ...


7

I found this article that answers my question: R’ Moshe Feinstein (Igros Moshe OC 4:60) writes that one may only use timers on Shabbos for one’s lights. Firstly, timers are akin to instructing a non-Jew to perform a melacha on one’s behalf which is prohibited. Additionally, it isn’t respectful for Shabbos. As people always had non-Jews come in to their ...


7

According to the article posted here: The Shabbos App is completely unacceptable from a halachic standpoint, according to Rabbi Moshe Elefant of the Orthodox Union. ... Noted halachic authority Rabbi Yair Hoffman said that while the app could transform texting from an issur d’oraysa to an issur d’rabanon, it is still strictly forbidden and ...


6

Based on some research, e.g. this link, I would venture that the Chazzal, the Rishonim and even early Achronim never heard of it and rarely if ever experienced the zap of static electricity. About the only way to accidentally produce static electricity without synthetic materials is by rubbing silk on glass, or fur on copper. Since they didn't wear ...


6

Apple’s default alarm behavior on iOS is to have the alarm go off indefinitely, so if one wants to use the iPhone or iPad alarm on Shabbat, one has to use a third-party app like this one that shuts the alarm off by itself. The only other thing I can think of to do with an iOS device on Shabbat is play media (like music) on a playlist, which would of course ...


6

This Star-K article by Rabbi Tzvi Rosen says: Although induction cooking offers a koshering benefit, the cooktop cannot be used on Shabbos or Yom Yov because the cooking connection is made once the pot is put onto the coil area. Similarly, one would not be able to remove the pot from the cooktop on Shabbos or Yom Tov because one would be “disconnecting” ...


5

I heard from a student of R. Yosef Dov Soloveitchik z"l that whether the the English has the status of a shem or not, replacing a letter with another symbol e.g. "G-d" accomplishes nothing, because there are no formal laws about the lettering of English as there are with Hebrew (e.g. regarding the laws of writing a Torah and the like). Rather, the legal ...


4

Either A) Get a pair of timers for the lamps OR B) Switch both lamps on before Shabbos and leave them on all Shabbos. Just point only one at the snake at a time.


2

Rav Belsky, shlit"a, explicitly declares his reasoning in the letter: ...a tiny possibility of ספק is introduced so that the odds of the melocho being completed is reduced somewhat or delayed minimally. This concept has no place in Halacha. My understanding is that his reasoning is not that different from the general principle that we are not concerned ...


1

A competent rabbi should be consulted in all such cases. A similar case is discussed here where the questioner wants to know what to do if he's in a hotel where the rooms are accessed by a magnetic card. The rabbi answers that he should ask the hotel staff for a conventional key. If that fails, he can ask a non-Jew to open the door for him (since one is ...


1

He also signed on this letter, which allows for grama devices in hospitals.


1

I located this which has a summary of some Do's / Dont's of some of the 39 Melachot It says: Whitening/Scouring What: Cleansing in any manor of absorbent materials with absorbed dirt or the bleaching of such materials. Do: Wash dishes, cups, etc. Use paper napkins to clean up spills Dry dishes with a cloth Hang up a suit jacket Hang up a rain coat ...


1

I am in no strong position to offer opinion, but my understanding is that this situation is Melacha Derbanan, but is not Psik Reisha D'lo Nicha Ley — unless maybe if you genuinely do not benefit from the temperature. If you benefit from the temperature then its Psik Reisha. I can imagine a crafty person suggesting that you thoroughly embrace and hold the ...


1

The example normally given is an electric stove top which is already on before Yom Tov, can the stove top be changed in the same way that gas can be changed? The answer to that is that if the switch is a continuous rheostat, then it can be changed in the same way that gas can be changed. However, many stove tops have switches which actually "click" between ...


1

The prohibition of erasing divine names is derived from the juxtaposition of "...we'avadtem eth shemam..." ("and destroy their names...") and "Lo ta'asun kein la'hashem..." ("Do not do likewise to the L-rd..."). In general, it’s forbidden to erase even one letter of any of the 7 divine names : שם הויה, אדנות, א-ל, א-לוה, אל-הים, ש-די, צב-אות (the ...



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