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

The source for all the melachos comes from the actions done to build (or operate) the Mishkan. Writing was used to make symbols on the boards that made up the outer walls. They were used so that when the Mishkan was disassembled and reassembled they would know which boards went where. Two letters (one on each board) were used to mark which boards matched ...


12

No, it is not permitted to use a Kindle or any other electronic e-reader on Shabbat or Yom Tov (Chol Ha'Moed may be a different story). There are two primary halachic issues with using such a device on Shabbat or Yom Tov: The usage of electricity The creation of letters The Usage of Electricity There is a debate amongst contemporary poskim as to what the ...


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

Aside from the electricity needed to change pages, I think the melacha that e-ink runs into is Tzovei'a (dyeing). You are not allowed to paint things, and color things, and dye things on Shabbat. The Kindle uses an Electrophoretic display, where basically, reflective titanium particles are suspended in a dark fluid. They are electrically charged to move to ...


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

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,...


8

It's known as grama, or "indirect causation." It was written up well in a Journal of Halacha & Contemporary Society article many years ago, I believe as: Rabbi Tzvi Sendler, Gramma in Halacha, XXXIX, 23 (And Jake, it's not as clear that the same concept would apply to other mitzvahs; the threshold for Sabbath-prohibited labor is higher because it ...


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

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.‏


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 heard a shiur given by Rav Moshe Heinemann of Baltimore (probably about 15 years ago) in which he mentioned that typing on Chol HaMoed is permitted. The reasoning he gave was that the act of typing is not a Ma'aseh Uman (professional act, forbidden on Chol HaMoed) as just about anyone is capable of typing. Rabbi Heinemann pointed out that although the ...


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

Hunterp, hello and welcome to the site. The seventh chapter of tractate Shabbat lists the 39 categories of labor, or "melachos." Beginning in the very early 20th century, rabbis began looking at electric devices and trying to understand which category (or categories) of prohibited labor they were considered. For an excellent tracing of the issues back to ...


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

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 ...


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