The seventh day of the week and a day of rest. Also use this tag for questions that apply equally to Yom Tov and Shabbat.

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Question on Rashi - Yisro 20:8

On the Posuk "Zochor Es Yom HaShabos L'Kadsho", Rashi says תנו לב לזכור תמיד את יום השבת שאם נזדמן לו חלק יפה יהא מזמינו לשבת (Take heart to remember the Shabbos - if you find something nice ...
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7answers
298 views

Wearing photo gray glasses on Shabbos

In the question Pregancy Test on Shabbos a notion was raised in an answer that the chemical reaction is a problem due to tzovaya. So what are the boundaries of this, in terms of chemical reactions ...
7
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3answers
620 views

If my home is on fire on Shabbos or Yom Tov, what can I do?

G-d forbid, but let's say that my house catches fire either on Shabbos or a Yom Tov. Can I call 911 or must I find a non-Jewish neighbor to call? We have an eruv. Can I take my car keys, cell phone ...
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5answers
521 views

malacha from child

is one allowed to ask a child to do a malacha of shabbos? does your answer also apply to a non-Jew?
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6answers
170 views

Number of Candles at Lighting

How many candles should one light on Erev Shabbos and Yom Tov? And why that number?
7
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5answers
389 views

Will rabbis allow brainy Shabbat driving?

Saw this news story a few days ago about a car being driven with just thought, using a special cap with sensors. http://www.jpost.com/Sci-Tech/Article.aspx?id=215704 To me this still seems entirely ...
7
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3answers
227 views

“Purchasing” Something Free on Shabbos

Suppose someone has a coupon for a free [let's say, iced coffee] from a store. What are the problems with getting such an item from the store, on Shabbos (or Yom Tov)? To boil it down to more general ...
7
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4answers
186 views

Is it permitted to make kiddush before Torah reading on Shabbat?

I know it's acceptable to have kiddush before Mussaf. Is it acceptable to have kiddush after the kaddish shalem of Shacharit but before the sefer Torah is taken out to be read? (I believe I've heard ...
7
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2answers
316 views

What are the issues with wearing gloves on Shabbos?

I know that there are differing opinions on wearing gloves outside on Shabbos, and whether that constitutes carrying, or may lead to carrying. So, what are the halachic problems/concerns with wearing ...
7
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1answer
300 views

If no one else was available, could a mohel ride a bicycle on shabbos to perform a circumcision?

If a healthy baby boy's eighth day of life is on a Saturday, that's the day his bris milah / circumcision should be performed if at all possible. While elective surgeries are prohibited on Shabbos, ...
7
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3answers
888 views

Do you have to close your blog / website on shabbos?

Do you have to close your blog on shabbos?
7
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1answer
112 views

Candle Lighting Time: Why Then?

Why 18 minutes (or other minhagim). Where did these numbers come from?
7
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3answers
280 views

Why don't we say Tachanun at Mincha on Erev Shabbat or Erev Yom Tov?

It says in the Rambam that there is a custom not to say Tachanun at Mincha on Erev Shabbos and Yom Tov. What is the reason for this custom?
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5answers
172 views

Shabbos Hagadol

Why is the Shabbos before Pesach called Shabbos HaGadol? Please contribute as many answers as possible.
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2answers
321 views

Can a Jew own a business that employs or pays atheist Jews on Shabbat?

I am an atheist who happens to be Jewish, and would like to work for a business owned by a religious Jew. Is he allowed to pay me for my work on Shabbat? What if the payment is global (e.g. 10% of a ...
7
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2answers
917 views

How do you build an eruv from your house to your sukkah?

I know people do this (if there's no eruv in town, or if you're afraid the eruv will be down at the end of a 3-day yomtov); I think it involves a string from the sukkah to the house? Please explain. ...
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2answers
97 views

Sliding tzitzis knot on Shabbos

Many times, for those who have two double knots with eight strings in each knot (i.e. not following the opinion of the Rambam), the knot starts to come loose often, sometimes even several times a day. ...
7
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2answers
277 views

Using a cell phone as a watch on Shabbos

I seem to recall learning that it is permissible to use a cell phone as a watch on Shabbos as long as the time is always displayed on the front and no buttons would need to be pressed in order to ...
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3answers
1k views

Why shouldn't Gentiles keep Shabbat?

I know little about Judaism and it's a first time question, so please forgive any mistakes. According to this question non-Jews are forbidden from keeping Shabbat. What is the reasoning behind this? ...
7
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2answers
4k views

Can a gentile go to Synagogue on Shabbat and what is forbidden on Shabbat for a gentile?

Is a gentile allowed to participate in Shabbat prayers in a Synagogue (of course he/she will not count for a minyan) if they do so in order to gain knowledge of Jewish customs for the purpose of ...
7
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1answer
126 views

Is it permissible to be mechalel shabbos to save a fetus?

Is it muttar to set aside the rules of shabbos to save a fetus? If so, how is it possible to reconcile that with the permissibility of killing a fetus (abortion)?
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2answers
123 views

Keychain with muktzeh items (e.g. usb)

This has been asked in the past with regard to a muktzeh key, and i was uncertain if it would be the same with something like a usb. If i have a keychain with a usb on it that i wear week round, come ...
7
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2answers
278 views

Drinking Water During “Shalosh Seudos”

Someone told me that one is not allowed to drink plain water during the third meal of Shabbos (Seudah Shelishit). (or at least that there is a minhag not to). Is this true? And if so, what is the ...
7
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1answer
79 views

Heating non-food items on Shabbath

Is it permissible to heat non-food items on Shabbath? Assume the method of heating is to use an existing heat source (a blech, or the top of a crockpot or hot water urn). Would it matter if it is ...
7
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2answers
296 views

Can you leave video chat on over Shabbos?

Basically: Can you leave your computer with video chat on (to another person) on over shabbos? And what if there's also audio? For example a relative in the hospital, relatives that in a far away ...
7
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1answer
238 views

How is it that one is allowed to have an alarm on shabbos?

Can one leave an alarm to go off on Shabbos morning? If one can, then can it play anything, music, radio, etc?
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3answers
87 views

Melachah on Shabbath - after Shabbath

If Melachah was done on Shabbath, can the product of that Melachah be enjoyed after Shabbath, and if so, under what criteria (does it depend on how long after Shabbath, or on the need, or something ...
7
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1answer
103 views

Why is it ok to pay the kids for the afikoman?

Most Pesach sedarim feature the afikoman hide-and-seek game; either the children steal it and ransom it back or the parents hide it and (in my experience) pay a prize to the child who finds it. At ...
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3answers
221 views

What's the exact procedure for using a key belt?

On Shabbat, in places where there is no communal eruv (or for those who do not rely on a communal eruv), taking your house key with you when you leave your home is a problem of carrying. One ...
7
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1answer
138 views

Refrigerators and shabbat

I have a friend that became Habad a while ago, and lives with her non-orthodox parents. She leaves the house for shabbat, but insists that her parents turn the lights off in the fridge, because if ...
7
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2answers
323 views

How does Shabbos/Yom Tov mode on a stove work?

Star-K certifies the shabbos mode on some modern stoves. (Oh how I pine for the day of simple rheostats on electric stoves, and pilot lights on gas stoves! Those were the days...) Our GE gas stove ...
7
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4answers
336 views

How does salt “add heat” (mishna in Shabbos 4(1))

The mishna in Shabbos 4(1) tells us which materials may not be used to insulate foods for Shabbos because they "add heat". One of these materials is salt. Can anyone explain how salt can add heat ...
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2answers
385 views

Is it actually forbidden to push a wheelchair outside of an eruv on Shabbat?

I have heard opinions varying wildly on the subject and am trying to make sense of them halachically. Is it illegal on Shabbat to push someone in a wheelchair, let's say, from their home to synagogue ...
7
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3answers
230 views

Difference between Pesik Reshe Delo Niha Le, Pesik Reshe Delo Ichpat Le, & Melacha She'en Sarich LeGufa

What is the practical difference between actions considered Pesik Reshe Delo Niha Le, Pesik Reshe Delo Ichpat Le, and Melecha She'en Sarich Legufa? What is an example that can demonstrate the ...
7
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1answer
144 views

Why celebrate Lag Ba'Omer on the 33rd according to the MaHaRIL?

There are several different opinions about when the students of Rabbi Akiva died, and which days we mourn for them. Sefer HaToda'ah quotes the Maharil, who says that the students of Rabbi Akiva died ...
7
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1answer
141 views

Is it permitted to use a thermochromic cup on Shabbos?

A novelty cup, see for example here, appears black when cold. When hot liquid is poured into it, the black changes to white and the previously concealed writing (underneath, so to speak) becomes ...
7
votes
1answer
239 views

Unplugging a Phone Charger on Shabbat?

If a phone charger (or any electric adapter that is not connected to a device, for that matter) is plugged into an outlet, does unplugging it constitute any forbidden form of work, or is simply a ...
7
votes
1answer
204 views

Should separating pull apart Challah rolls be considered a forbidden act of completion?

I have heard many people state that using Challah* rolls that are baked in one unit to be pulled apart might be a problem for making Leḥem** Mishneh on Shabbath. In fact, there are rolls that are sold ...
7
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1answer
127 views

Sale of kibbudim on shabbat / chag

Many shuls have the practice of selling kibbudim (i.e. aliyot, hafotrah, opening the aron, etc.) on major holidays, usually via auction. I've been to some shuls where this is done every shabbat. A ...
7
votes
1answer
171 views

Lechem Mishneh : holding challos procedure

What's the exact procedure for holding the challos in lechem mishneh. I'm not asking about the number of challos used or which one to cut (top / bottom) but how do we hold them : do we hold them ...
7
votes
1answer
258 views

Can one play darts on shabbat?

Can one play darts on shabbat? And can one then do archery on shabbat, assuming there are no words or numbers on the target, and the bows remain strung throughout shabbat?
7
votes
1answer
470 views

Asking Questions on StackOverflow on Erev Shabbos

Is there a problem with asking a programming question on StackOverflow (or any other StackExchange site) on Erev Shabbos, so that they will eventually be answered by the time Motzei Shabbos arrives? ...
7
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2answers
179 views

cleaning up throw-up

if you have throw-up on a couch and it stinks and the couch is absorbent, how do you clean this up on shabbas? what are the concerns?
7
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1answer
72 views

Taanis Chalom on shabbos when a fast day is pushed off

If a fast day which normally falls out on shabbos is pushed off, such as the 17th of Tammuz, and a person fasts on that shabbos for another permissible reason, such as a taanis chalom (fast for having ...
7
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2answers
285 views

Solar Powered Wrist-Watch on Shabbos

Is one allowed to go out with a solar powered watch on Shabbos (where they know the watch is in a situation where they will surely benefit from the power produced through the sun?) What could be the ...
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0answers
125 views

Why does almost every community say Lecha Dodi?

The prayer Lecha Dodi was composed in the 16th century which is relatively recent as the general Nusach of prayer was founded between 516 BCE – 70 CE by the Anshei K'neset Hagdolah, and its rare that ...
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2answers
147 views

Games (on Shabas) that involve writing: whose writing?

I don't have good sources handy, but apparently some forbid the Shabas playing of games in which one usually writes, even if playing without writing: Scrabble, in which one writes scores, is sometimes ...
6
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2answers
335 views

Is repeating the chorus in Lecha Dodi problematic?

Some tunes for Lecha Dodi are conducive to repeating the chorus ("Lecha dodi ...") twice each time. I've noticed that some people, when using one of these tunes, repeat, while others avoid repeating ...
6
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6answers
429 views

What is a good way to make one's website inaccessible on Shabbat?

Suppose I wish to make my website automatically become unavailable every week during Shabbat, or at least for a time period that roughly corresponds to Shabbat for a large group of people. Can you ...
6
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2answers
453 views

Should one light Shabbat candles if Friday is yom tov?

Today is the second day of Rosh Hashana, and it happens to be Friday. The holiday will end after Shabbat begins. Should we light candles today?