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22
votes
10answers
796 views

How can I make a long summer shabbat a delight?

Where I live, shabbat ends at nearly 10PM at the peak of summer, and I find it challenging to get to the end of that without starting to develop some negative feelings. I try to spend most of Shabbat ...
17
votes
4answers
792 views

Moshe's age and the timeline of the exodus

Moshe was 80 when he first approached Par'o and the makos lasted a year, so he turned 81 in the Adar before the Jews left Mitzrayim. As he turned 120 in the Adar before the Jews entered Israel, the ...
17
votes
2answers
1k views

When did we start counting the Year since Creation?

This year is 5772 / תשעב (Taf-Shin-Ayin-Bet) on the Hebrew Calendar. What is the earliest reference to the Year counting from the Creation of the world?
15
votes
6answers
1k views

Why are women exempt from (many) time-bound mitzvot?

I have heard two reasons for women being exempt from time-bound mitzvot and both seem problematic, so either there are additional explanations or I am not properly understanding these two: Women ...
14
votes
4answers
1k views

Time Travel and Judaism

Has time travel ever been discussed before in terms of Judaism? According to Judaism would (should) it be possible to travel through time?
14
votes
6answers
444 views

Avoiding accidentally eating cheese

Whether one waits 6 hours, 3 hours, 1 hour, or somewhere in between, it is a common occurrence to find people mistakenly eating milk/cheese/yogurt too soon after meat. It seems like a problem that ...
14
votes
3answers
284 views

How long can you say Asher Yotzar if you forgot?

If you forgot to say Asher Yotzar and remember a while later, is there a time limit as to when you are allowed to say it?
14
votes
1answer
346 views

Time-frame for naming a newborn girl

I have heard many differing Minhagim as to the time-frame for naming a newborn girl. There are those that name at the first possible opportunity and some that wait till the second Shabbos. Many others ...
12
votes
3answers
153 views

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 ...
12
votes
1answer
169 views

Out-of-order minyan participation

Some shuls have several minyanim back to back. If one arrives before the Torah reading of the 8:30 minyan and has finished davening before the Torah reading of the 9:30 minyan (to whose Kedusha one ...
11
votes
3answers
430 views

Time dilation and waiting between meat and milk

Suppose Ploni eats some meat. He then gets in a spaceship and accelerates to some significant percentage of the speed of light for a short trip into outer space, and then returns home. At the time ...
11
votes
4answers
2k views

When can you build the sukkah?

My wife and I love the holiday of Sukkot, as do many of our friends. We build the sukkah every year and have friends over for an evening meal, preferably on Shabbes - if someone else in our group of ...
11
votes
1answer
468 views

Kiddush between 6 and 7 o'clock - Which clock?

Many people hold that one should not make kiddush on Shabbos between the hours of 6 and 7. (Sources: Shulchan Aruch Harav and Taamei Haminhagim, (who, in turn, bring a Maharil, a Magen Avraham, and a ...
11
votes
2answers
770 views

Wearing Watches on Shabbat

What is a watch one can wear on shabbat? There are the analogue quartz watches with just one crown to adjust the time that (as far as I'm aware) most people would wear on shabbat (especially an ...
10
votes
3answers
188 views

Why do siddurim and Shulchan Oruch OC start with Shacharis?

Why do siddurim and Shulchan Oruch OC start with the morning? Since the day starts with night, they should start with Maariv as does the mishnah.
10
votes
3answers
218 views

Can I use a Lulav or Esrog from last year?

Suppose I'm able to perfectly preserve one (or all) of the Arbaah Minim from last year so that they are still in "mint condition." Can I use them again this year?
10
votes
1answer
64 views

If kings get up at 3 hours past sunrise, wouldn't they need some extra time to say Shma?

Mishna Brachot 1:2 gives the times for saying Shma in the morning. מאימתיי קורין את שמע בשחרים: משיכיר בין תכלת ללבן; רבי אליעזר אומר, בין תכלת לכרתן. עד הנץ החמה; רבי יהושוע אומר, עד שלוש שעות, ...
9
votes
2answers
258 views

Source for not eating Matzah prior to פסח?

Thanks to this question I am compelled to ask: What is the source for not eating Matzah prior to פסח? Is there a source for not eating it for 30 days prior?
9
votes
4answers
220 views

Getting a head start on Shnayim Mikra

(Inspired by this question) Can one get a head start on Shnayim Mikra? Would it count if someone either started early (perhaps during the weeks with no Sedra in Tishrei), or just had some spare time ...
9
votes
3answers
198 views

Delaying using the toilet

According to Gemara Makkot 16b, the phrase in Vayikra 20:25 ... and do not make your souls disgusting - וְלֹא תְשַׁקְּצוּ אֶת נַפְשֹׁתֵיכֶם is a command not to hold in the urge to urinate or ...
9
votes
2answers
352 views

Using an oven timer on Shabbas

This is my first post here. I'm fairly familiar with cooking on Shabbat, but I have a few specific questions. I know there are issues with using the warming setting on an oven to keep food warm. ...
9
votes
2answers
256 views

Why only on the first Saturday night of Selichot is the minhag to start at midnight?

Pretty self explanatory. Some say at chatzot all week and some in the morning. Why davka on the first night does everyone say at night? This minhag does not seem apply on the second Saturday night ...
9
votes
3answers
118 views

When Tana“ch uses the phrase ”until today" what does it mean?

There are numerous places where Tana"ch uses the phrase "עד היום" or "עד היום הזה" ("until\to this day"). Usually, this phrase is used regarding the names of cities, towns, etc. - occasionally, such ...
9
votes
1answer
391 views

Brewing fresh coffee for Shabbos with a time clock

May one prepare coffee ingredients in a brewer such as this one on Friday and set the timer to brew the coffee for 8:00 Shabbos morning?
9
votes
1answer
176 views

Group coordination for a siyum

My understanding is that a siyum should be made on the last bit of the text being studied. Thus, if the entire Mishna (all six "orders") is studied for someone's yahrzeit, the last mishna (individual ...
9
votes
2answers
216 views

Wearing a gold watch on shabbos without an eiruv

The halocho is a person may wear jewellery in the street on shabbos without an eiruv provided the reason why he is wearing it is for the adornment of it and not some other use. Therefore the poskim ...
8
votes
3answers
215 views

Moshe Rabbeinu's knowledge of future events

If Moshe Rabbeinu was taught the entire Torah on Mt. Sinai (Rashi on Vayikra 25:1, Rambam), how do we explain events such as the incident involving the Bnos Tzelafchad (Bamidbar 27:1-11), or the tamei ...
8
votes
2answers
212 views

Sleeping between meat and milk

I have heard in the name of the Chasam Sofer that if one sleeps after eating meat that they can be lenient in the amount of time one would normally wait between eating meat and milk. Is this written ...
8
votes
1answer
744 views

18 minute Matzah?

Are there sources EXPLAINING why we have to make matzah within 18 minutes? I understand having a time limit if in fact the reason we eat matzah is to reenact the speed which we left Egypt (that ...
8
votes
2answers
83 views

Why 30 days of preparation for a חג

Why exactly 30 days to review the laws of the upcoming holidays? Is there anything about the number 30 that makes it significant?
8
votes
3answers
275 views

Hours, minutes, and chalakim

On Shabbat preceding Rosh Chodesh, the time of the molad is generally announced in units of hours, minutes, and chalakim. However, minutes are not a traditional Jewish unit of time; rather hours are ...
8
votes
1answer
144 views

Referencing Iron before the Iron Age

A guest brought up this question at the shabbos table, and no one had an answer. In D'Varim 8:9 it says "...a land whose stones are iron...". The question this guest asked was: How is it that the ...
8
votes
1answer
214 views

What are the rules for ain mukdam umeuchar?

Sometimes we say that things in the Torah are not in chronological order. What are the parameters for this? do you need to have a mesorah (particular tradition) for this? Is there a list of all ...
8
votes
1answer
188 views

Which modern-day fruits require Shehechiyanu?

According to my understanding (and please, correct me if I'm wrong), the Bracha of Shehechiyanu (שהחינו) on fruits [and some vegetables?] is recited the first time one partakes of a particular ...
7
votes
2answers
203 views

What are you supposed to do on Tisha baAv?

On Tisha baAv you can't eat wash oneself anoint oneself marital relation wearing leather shoes sit on a chair Torah study greeting people with a blessing conducting business going on a ...
7
votes
1answer
212 views

Is there a Statute of Limitations in Jewish Law?

From Wikipedia: A statute of limitations is an enactment in a common law legal system that sets the maximum time after an event that legal proceedings based on that event may be initiated. In ...
7
votes
1answer
104 views

Call for Halachic Dateline Source(s)

OK, we've got some discussion going on about issues affecting life within the gray zone of the Halachic Dateline and the International Dateline, but what is the original source of such a concept, if ...
7
votes
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
votes
2answers
946 views

Until what time in the morning may you eat on a fast day?

On fast days that begin in the morning, (Asara B'Teves, Taanis Esther, Shiva Asar B'Tamuz, Tzom Gedalya) if you intend to eat when you awake, until what time may you eat in the morning? Does it depend ...
7
votes
2answers
81 views

How is the story of the Torah being given told in the Torah itself?

I'm sure this question has been asked before since it very obvious and I've heard it before. Nonetheless I've never heard a good answer and an internet search brought up nothing. The question is, how ...
7
votes
2answers
137 views

What does “twice in seven years” mean regarding checking mezuzos?

We are told to check our mezuzos twice every seven years. What exactly does this mean? If the Chachamim/Poskim had meant once every 3.5 years, would they not have said this instead? With regard to ...
6
votes
2answers
95 views

How long does soil need to last?

If you move a tree with its soil, it's considered replanted (so the rules of orla kick in) unless it can live off of the soil you're moving it with. (Source.) Clearly "if it can live" doesn't mean "if ...
6
votes
2answers
376 views

Alarm clock handling on Shabbos

Are you allowed to touch an alarm clock on Shabbos?
6
votes
1answer
127 views

How much time is the Tekia of Shofar supposed to take?

When one blows Shofar on Rosh HaShana, how much time is the Tekia supposed to take in order to be Yotzei the Mitzva?
6
votes
1answer
102 views

Davening a long shemoneh esrei and missing ameins

Is there anything wrong/are there any problems with a person davening a long shemoneh esrei, so much so that they miss chazaras hashatz, including kedusha, and all the ameins...?
6
votes
3answers
173 views

When does counting 100 Brochos per day start and end?

There's a Halacha/Mitzvah to say at-least 100 Brochos a day. My question is: what does the term "day" mean in this regard. Does a day start at night, and end the following night (as is the case in ...
6
votes
1answer
140 views

Torah Learning Time Calculator

I am looking for something that will take the sefer I want to learn, and the amount of time/days I want to complete it in and tell me the average amount I need to learn a day. It doesn't have to be ...
6
votes
1answer
763 views

What does it cost to write one's own Sefer Torah - and how long would it take?

I'm wondering if anybody else has experience writing their own Sefer Torah, how long it took them and how much it cost. It took me about 9 years and about $3,500 to write mine.
6
votes
4answers
193 views

Concept that time is a spiral

I've heard that there is a concept in Judaism of time in a spiral, but I'm not sure where that idea originally comes from (specifically, which Rabbi originally said it). The earliest I've found is Rav ...
6
votes
2answers
213 views

Understanding the timeline of the drying up of the Flood waters

After the 40 days of rainfall and 150 of the waters surging, the rest of the Flood period was the time it took the waters to dry up. Rashi (to Gen. 8:3-4,13-14) gives the timeline as follows: The ...