28

There are nine possible reasons not to use electricity on Shabbat Opinions about electricity range from deorita, d'rabanan and technially, not really an issur. The two most commonly cited sources on the topic are the Chazon Ish and R. Auerbach who's opinions on this vary greatly. Igniting a fire The basic example of using electricity, (turning on an ...


21

Yes. Women should formally end shabbat before lighting a havdala candle after shabbat has ended, i.e. after nightfall on Saturday. First of all, women certainly can daven maariv and say attah chonantanu. Second, the Rama in OC 299:10 quotes an opinion that the only reason labor is forbidden before havdala is lest one forget to say havdala. Accordingly, ...


17

In terms of deriving benefit from the actions done by a Jew on Shabbat the Shulchan Aruch (OC 318:1 and Mishna Berurah and Biur Halacha there) distinguish between a number of cases: If a biblical prohibition was violated purposefully (deoraita bemeizid) then no one can derive benefit from it for the rest of shabbat, and the violator himself cannot derive ...


13

The Shut Hor Yizchak (Hor Hachaim 157) says that not only it is OK, but the question not even starts ("he did nothing"). The example he gives is to call from Israel to the States on Motzei Shabat. In Israel it is after Shabat and in the States the Shabat is still on. He adds that it is even permissible to phone a non Jew and ask him to do work for you. I ...


12

There is an argument between different Rabbis: Igros Moshe says that one is prohibited to invite someone to a synagogue if the only way one will be able to get there is by car. He says that there are several issues: Lifnei Iver (he is like one who places a stumbling block). He says this applies even if the people whom he invites live close enough to the ...


12

As noted in the comments, using electricity is melacha and thus forbidden on Shabbat. See this question for more information about why electricity is prohibited. In addition, writing is forbidden on Shabbat, even if the text is ephemeral. Since, so far, it is not possible to ask and answer questions on Mi Yodeya without using electricity and writing, the ...


12

Opening an umbrella on Shabbat is generally considered to be forbidden because of building. The linked article notes that while the g'mara (not specifically cited) does permit opening a folding chair, even though that creates a "tent" over the ground below, the purpose of opening the chair isn't to create the tent, while the purpose of erecting a structure ...


11

The Shulchan Aruch Harav writes (based on a Yerushalmi) that if one who spits into the wind, and the wind spreads it out, he violated the Shabbos prohibition of Zora (winnowing). He adds that it may be only a Rabbinic prohibition, as it is a Melacha Sheina Tzricha Legufa. However, in Hilchos Pesach he writes that in order for one to violate Zora one must do ...


11

Rav Aharon Lichtenstein discusses the issue here and quotes Rav Shlomo Zalman Aurbach as permitting, provided one let them know that sleeping arrangements in the area can be provided. Rav Lichtenstein himself tends to agree, especially if there is a Jewish-educational aspect involved.


11

There is a concern that by opening the box, a usable vessel has been completed, which can be a violation of the prohibition of makeh b'patish, one of the 39 forbidden categories of "work" on Shabbath and Yom Tov. From Halachipedia (based on Shemirath Shabbath KeHilchatha 9:10-1): Cardboard boxes closed with gummed paper or tape, papers stuck together, or ...


10

I have heard, I believe from Rabbi Daniel Stein, that Rav Soloveitchk is quoted as crafting the following logic: Chicken soup, unlike water, does not as a practical reality lose its cooking (azil lei bishulei) when cooled. If I have water, boil it, and let it cool, it is basically back to where I started. If I cook soup, and let it cool, I have cold soup,...


10

From Rabbi Torczyner: • May I braid challah on Yom Tov? This is actually more complex than it may sound. On the one hand, acts from kneading and onward in the bread-making process are permitted on Yom Tov. On the other hand, the reason we don't braid dough is because it is "construction", and construction is prohibited on Yom Tov. Indeed, Rav Shlomo ...


10

R. Yitzchak Abadi (Ohr Yitzchak 1:175) rules it is permitted to make a knot on a garbage bag that is going to be thrown out since it cannot be called a kesher shel kayama.


8

http://ohr.edu/ask_db/ask_main.php/203/Q2/ Rabbi Shlomo Zalman Aurbach, zatzal, prohibits making toys - like a boat, or hat - by folding paper, since it is like making a utensil. However, if the paper was folded into a toy before Shabbat, it is permitted to use it on Shabbat. Sources: Shemirat Shabbat Kehilchata Ch.16:19


8

Rambam, Shabas 1:3, says: Someone who does so on purpose, we hit him with a smiting for rebellion (makas mardus). That is, bes din does.


8

Rambam Hilchos Shabbos 10:11 says that gluing two pieces of paper together on Shabbos is a Toldah (offshoot) of Tofer (the biblical prohibition against sewing on Shabbos). המדבק ניירות או עורות בקולן של סופרים, וכיוצא בו--הרי זה תולדת תופר וחייב One who glues pieces of paper or leather to each other with scribe's glue (קולן של סופרים), or anything ...


8

The Maharsham (Daas Torah 444:1) and others (based on the Pri Megadim) allow instructing a gentile to perform hachanah and others allow doing so if necessary for a mitzvah, which would presumably include preparing for a yom tov seudah. See here (including the comment for more sources) and here.


8

R Yehoshua Neuwirth in Shmirat Shabbat KeHilchata (vol. 1, p. 189 in the 2002 edition) allows basketball if played on a hard surface such as asphalt or concrete (but not on earth or grass) in an area with an eiruv one doesn't retrieve a ball which would have lodged in a tree (neither by hand, with a stick or by shaking the tree) There is a question whether ...


8

Not precisely as you say, but the Be'er Hagolah (OC 670:3) quotes the Beis Yosef who writes that the reason is in order that it should be a reminder for them that it is forbidden to use the light from the candles. ֽֽAs far as your bonus question, while it's quite difficult to prove a negative, but I haven't heard of any opinions that say such a thing. Also, ...


7

I hope that this is more helpful. I am a rabbi in Birmingham. When we have tornadoes which knock out power we recommend people use light sticks. There is no heat generated, the light is a simple chemical reaction. breaking the inner glass is not mekalkel as what you are doing is not destructive it is in fact constructive. Think of cutting a cucumber for ...


7

The Rivevos Ephraim Chelek 8:564:1 was asked if one can blow bubbles from chewing gum(bazuka). He writes that making bubbles from soap was discussed in Shmiras Shabbas Kehilchasa perek 17:30 and says that one shouldn't make them. However, he writes that one shouldn't refrain a child from doing so,and the reason written in the name of Rav Shlomo Zalamn ...


7

By turning on the light at his request, you would be causing him to violate the commandment of "lifnei 'iver -- placing a stumbling block before the blind." The Rabbis interpret this to forbid one Jew to cause another to sin. See MT Laws of Murder 12:14 for source.


7

Aruch Hashulchan 496:5 says that it is forbidden for a Ben Eretz Yisrael to eat Chometz in Chutz L'Aretz on Acharon Shel Pesach. ויש מי שאומר דבן ארץ ישראל הבא לחוץ לארץ – אסור לו לאכול חמץ באחרון של פסח בכל עניין, אפילו דעתו לחזור. ונכון הוא, דזה גריע ממלאכה.‏


7

Great question! This is part of a major machlokes rishonim in maseches beitzah. The Ran in the beginning of the 3rd chapter says that really all melachos are allowed on a Biblical level, but the sages forbade melachos that are generally done for a long time, as harvesting is generally done on an entire field, not just what you need for that meal. ...


7

Unlike typical food certification, there is nothing exceptionally special about the Star-K certification of appliances. They look at the specifications and functions, and apply their Poskim's understanding of the application of Halacha. The non-certified one can be shown to any Rabbi competent in that area and he can decide if the mode has any issues you ...


7

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 ...


7

Shulchan Aruch Harav Orach Chaim 278.1 ...אין איסור מן התורה אלא במלאכה הצריכה לגופה... ...it is not oser from the torah unless it is a labor that is needed... (my translation) So it seems that if you so do not need the markings it is not a Biblical prohibition. Shulchan Aruch Harav Orach Chaim 340.8 ...כל שהוא תבנית איזה כתב אפילו אינו אשורי ...


7

The short answer is that this is allowed. There are two issues here Is work forbidden before havdala? Can you benefit from work done by a Jew after shabbat if he hasn't done havdala? The answer to the first question is that indeed work is forbidden before havdala (see Mishna Brura 299:10), the Rema says one might be lenient for non full-fledged labor work ...


7

Assuming the person walking is Jewish, that the light always turns on and that the person walking benefits from its light, then it is forbidden to walk towards it intentionally. This is called psik reisha, i.e., something that you know will happen, and it is forbidden when done intentionally. R Eliezer Melamed writes in Peninei Halacha One may not enter ...


7

The Aruch Hashulchan Orach Chaim317,4 quotes the Yerushalmi Shabbos 7,1 that suggests that there might be Borer for Humans from humans (i assume with kids who are man handled and don't move voluntarily) according to Chizkia who says that Borer applies to the same species (e.g pomegranates separated from other pomegranates), but this suggestion of Chizkia is ...


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