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12
votes
2answers
157 views
+100

Is there a halachic problem with the Columbia University seal on the floor of the library?

The seal of Columbia University has the YKVK (G-d's 4 letter name) on the floor of the library. People walk on the seal. Is this chilul Hashem or is there some other halachic problem with this? Does ...
10
votes
1answer
99 views
+50

What if you undo a shabbat melacha?

If you plant a seed shortly before the end of shabbat (zoraya) and then un-bury it after shabbat, or you put an uncooked food into an oven and then take it out within seconds without it having baked ...
0
votes
0answers
4 views

Liability for bed bugs

If one tenant in an apartment brings in bed-bugs (and that can be proven), and they spread throughout the building, and the other tenants have to vacate their apartments to be fumigated, or whatever ...
11
votes
2answers
259 views
+50

10th man drove to shul on shabbat

If one of precisely ten men, who form a minyan, had driven to shul (the synagogue) on shabbat, is that an acceptable minyan? I would have though not, since one is benefiting from his melacha on ...
5
votes
3answers
119 views

Is there anything halachically or hashkafically wrong with installing reference computers in a Bet Midrash?

With the vast amount of information available on the web, I am curious why I have not seen any Batei Midrash equipped with a number of central computers that can access only "kosher" web sites geared ...
0
votes
0answers
16 views

Enabling a Jew in a melacha

I know you're not supposed to do a melacha on Shabbos in order to prevent another Jew from doing one. But is it prohibited to do something (not a melacha) which will likely enable another Jew to do a ...
1
vote
1answer
79 views

Why does the use of horse manure as fertilizer not make produce non-kosher?

Horses are non-kosher and its manure is also non-kosher. If you use the manure as fertilizer on, say, potatoes, isn't there some concern that the potatoes may absorb some part of the manure? If so, ...
3
votes
1answer
95 views

Preparing for the weekday on Shabbos after nightfall

We know there is an issur of hachanah on Shabbos (preparing from Shabbos for the weekday.) Is there a problem of hachanah (preparing something) "on Shabbos" when it's already after nightfall and no ...
2
votes
0answers
28 views

Examples of having to choose between two “lavs”?

There are classic examples of having to choose between two positive commandments (e.g. if one only has money for one, do you buy wine for Shabbas or candles), and there are known cases where a ...
0
votes
2answers
26 views

What do “Batél Beshishim Lechatechila” and “ Mevatél Issur Lechatechila” mean?

What do "Batél Beshishim Lechatechila" and "Mevatél Issur Lechatechila" mean?
0
votes
1answer
15 views

How do we know that a potential korban is not אֶתְנַן זוֹנָה וּמְחִיר כֶּלֶב?

 אֶתְנַן זוֹנָה וּמְחִיר כֶּלֶב are invalid for an offering. Devorim 23:19. For example, as Rashi explains, “If one exchanged a dog for a lamb [this lamb is unfit for a sacrifice].” How does the ...
3
votes
2answers
60 views

Loshon hara against non-Jews?

It would seem to be ethically(1) and Jewishly(2) inadvisable--but is there actually a halacha against speaking loshon hara about non-Jews? Related: Loshon Hara against public Jewish and non-Jewish ...
-1
votes
0answers
37 views
+50

When and how often should you make a bracha on a snack that is being passed around?

If you don't have your own plate of a certain food, but are just taking from a communal plate/bowl that is being passed around (i.e. a bowl of popcorn), should you make a bracha rishona each time you ...
2
votes
1answer
253 views

Can you derive benefit from another Jew's melacha if it happened a long time ago?

We aren't supposed to derive benefit from melachot performed by other Jews on Shabbos. But what if it didn't happen this Shabbos? What if our guest brought a bottle of liquor as a gift last Shabbos, ...
0
votes
0answers
20 views

Is there a problem with “Mar'it ayin” by attending a company picnic?

Theoretical: Let's say that a company plans a picnic in a "semi-park" area. I.e. - it is a tree-lined public thoroughfare that many people including Jews, walk through. (I added this fact b/c I have ...
0
votes
1answer
21 views

What is the difference between kosher and permitted food?

I wish to allude to this answer, which distinguishes between "kosher" and "permitted" (and "non-kosher" and "forbidden") foods for purposes of knowing when to make a bracha. Can someone explain this ...
0
votes
1answer
6 views

Is dvar sheina mitchaven permitted if the melacha is inevitable?

My question refers to the class of permitted actions that may inadvertently cause melachas as byproducts. (For example, with hair brushing, the intention is not to pull out the hair, but this does ...
1
vote
0answers
19 views

Toasters in motels / cabins

I rented a cabin last week. In the kitchen was a clean toaster - not a toaster oven, but the "retro" kind for 2 slices of bread. Could I have used it? My assumption was it's OK b/c the electrical ...
2
votes
2answers
51 views

Coffee Machines in Hotels

Many hotels have coffee machines in the rooms. They also usually provide the necessary ingredients, such as disposable filters and coffee grinds. What are the potential problems with using such a ...
1
vote
0answers
16 views

Planting grass during shmita

Is it permissible to plant grass during the shmita year? As this question indicates, there is a machloket regarding planting non-fruit trees during shmita. If grass is like a tree, it would be ...
4
votes
0answers
27 views

Giving to a “mission” collection

In some religions, people accept upon themselves some kind of "mission" to do whatever act to help others. In many cases, it involves collections to send to the poor, or to 3rd world countries. The ...
5
votes
1answer
41 views

Is there a concept of a “Makom Kavu'ah” in a public area?

Some time ago, I was sitting on a NYC subway train on my way to work. A frum guy approached me and asked if I would mind moving as I was sitting in his "makom kavu'ah" (designated place). I was ...
0
votes
1answer
59 views

Washing Once or Twice

Someone told me that technically one needs to pour water on each hand only once since we use large quantities of water. Is there a halachic source for this? I heard that the requirement to pour twice ...
2
votes
0answers
70 views

How hungry does a Jew have to be to eat non-kosher food?

I understand that Jews are allowed to eat non-kosher food in order to save their lives. My question is, how long does a Jew have to be deprived of food, before he or she is allowed to eat non-kosher ...
4
votes
2answers
275 views

Can I have a linen lining in a wool jacket?

Pretty straightforward: is it permissible to have a garment in which linen and wool fabrics are both present? Some examples would include the example in the title (linen lining in a wool jacket) and a ...
0
votes
0answers
29 views

Must a future convert keep mitzvos?

MichaelS wrote: The case: Ben Noah in the process of giyur. Stood before the Beis Din and was asked question 'Will you follow the mitzvot as fully as a goy can up until the end of the process of ...
3
votes
3answers
69 views

Cholov Israel microwave

If someone is careful about only eating dairy which is Cholov Israel, is it OK to use a microwave which has been used for Cholov stam, without doing anything to kasher the microwave or wrapping the ...
9
votes
1answer
104 views

How do soldiers in the IDF obey Deuteronomy 23:13?

The mitvah talks about ensuring every soldiers have a spade to cover their excrement. The mitvah seems to be pretty obsolete because by now we have toilets all over the place. So, how it's done? Do ...
6
votes
2answers
97 views

Depicting a constellation

Is it mutar to arrange star stickers in the form of actual constellations (say, on a ceiling) or is that included in the prohibition of depicting celestial bodies?
0
votes
1answer
95 views

Watering Synthetic Grass on Shabbat?

Is there a problem of watering synthetic grass on Shabbat- If the synthetic grass has gaps or "holes" whereby the water can leak through to the earth underneath it? What if the earth underneath ...
0
votes
0answers
22 views

Can tevilas keli be avoided by giving the item to another Jew and borrowing it back from him?

The idea of giving an item that is difficult to immerse in a mikvah to a non-Jew and then borrowing it back is known to me (see for example the answer from “Lechayam” to the related question Electric ...
3
votes
2answers
61 views

vegetables, water, tomato juice and vegetable soup

Someone told me that when vegetables are cooked in water, the water even without the vegetables takes on the berachah of the vegetables. Where is the halachic source for this? It would entail that ...
0
votes
1answer
23 views

Intent to include foods in bracha that exist only as ingredients

Given that one has a shehakol food as well as water and coffee beans, if one makes a shehakol on the other food intending to include the prepared coffee, and only then realizes that the coffee has not ...
2
votes
1answer
36 views

If you do a tashlumim shmoneh esrei do you say Hashem sefatai tiftach again?

If you do a tashlumim shmoneh esrei do you say Hashem sefatai tiftach again?
0
votes
0answers
55 views

Can there be a guide to what interruptions and skips can be made during parts of davening?

Can there be a guide to what interruptions and skips can be made during parts of davening? I'd like to see such a guide and think it would be extremely helpful to the users of Mi Yodeya.
3
votes
1answer
291 views

Are separate condiments/containers needed for meat and dairy?

When eating a dairy meal and you use the salt/pepper shakers then meat dishes are brought out do you have to switch the condiment containers too? Likewise when cooking with dairy and using your spice ...
2
votes
1answer
43 views

Shvusim. does amount make a difference

Is there a concept of shvus dishvus with an added shvus making it a rabbinic prohibition 3 times removed. For example if it's yom tov sheini, and the action is rabbinic such as Nolad (turning on a ...
5
votes
0answers
47 views

Havdalah: mistake in the bracha

If a person saying havdalah began the last bracha (benediction) without mentioning sheim umalchus (God's name and dominion) i.e. he said ברוך אתה השם המבדיל בין קודש לחול וכו׳, skipping אלוקינו מלך ...
0
votes
2answers
94 views

wife, child and shul

Mr. and Mrs. Schwartz have a below the age of chinuch named Yaakov. Mrs. Schwartz was up late Monday. She tells her husband that she's very tired and would like to know if he can watch Yaakov while ...
6
votes
2answers
182 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 ...
2
votes
1answer
34 views

Visiting sites previously used for idol worship

Given the prohibition on entering a place of idol worship (Rambam, Peirush ha-Mishnayos, Avodah Zarah 1:3), when, if ever, is one permitted to visit a historical site that has been used as a place of ...
5
votes
2answers
74 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. ...
-2
votes
0answers
30 views

shemonah esrei and being disturbed

'A' finished his silent shemonah esrei and 'B' is still in middle of davening. 'A' starts talking to 'C' loud enough that 'B' can't concentrate or let alone continue davening his silent shemonah ...
2
votes
0answers
23 views

Can I take out a sefer and not learn from it?

There is an issue with taking out a sefer Torah and not learning/reading from it, as it is disrespectful to the sefer. Does such a concern exist by other sefarim? I ask because I know that for some ...
7
votes
1answer
1k views

Doctors working on Shabbat

What are some general guidelines regarding the halakhic permissibility for Jewish doctors to work on Shabbat? I know that saving lives generally overrides Shabbat, but I am curious about less ...
6
votes
1answer
109 views

Tzadakkah questions (flyers in mail)

What is one's halachic obligation based on Rambam Hilchos Matanos Anayim 10:3, "do not turn away…", when one receives tzedakkah flyers in the mail for many different types of causes? In ...
4
votes
1answer
47 views

Saying tachanun when the tzibbur doesn't

If one is davening at a minyan where they don't say tachanun, for reasons that the individual does not feel tachanun should be skipped for, should they say tachanun or skip it? If they should say it, ...
5
votes
2answers
262 views

12-step recovery programs with Gentiles

Based on well-known results, 12-step programs based on Alcoholics Anonymous and branching out to narcotics and such, appear to be extremely effective. However, since Jews are roughly a 1:100 ...
6
votes
1answer
52 views

Does wine bottle cut into a drinking glass need to be toveled?

I've been cutting wine bottles into drinking glasses as gifts for friends and am wondering if they need to be taken to the mikveh as they now could be considered "new" containers. Does a wine bottle ...
4
votes
2answers
59 views

Transliterated Shemot

Do transliterated names of G-d (tetragrammata, adoshem, et c.) cause a book to be shemos? I have never noticed a traditional Jewish sefer which contains such an example, although most are already ...