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11
votes
4answers
772 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?
17
votes
2answers
534 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?
10
votes
2answers
324 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 ...
8
votes
2answers
132 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 ...
15
votes
3answers
483 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 ...
11
votes
4answers
605 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 ...
5
votes
3answers
905 views

What is the meaning of יוֹם (yowm) in Bereshit?

I've heard conflicting reports of how the creation days , יוֹם (yowm), in Bereshit are interpreted in the Jewish community. How do actual Hebrew scholars define day in Bereshit? six 24 hour periods or ...
11
votes
1answer
307 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 ...
9
votes
3answers
111 views

Must I check the kashrut certificate every time I visit a bakery or restaurant?

Say I visit a bakery, restaurant, jail, hospital, or nursing home. And say I already know that the food there is kosher. Must I still check the kashrut certificate every time I visit? (Gershon ...
3
votes
3answers
142 views

how often do you have to check your mezuzot?

I heard it was twice in two years. Is that right? Where does that come from? If I have no reason to assume they became pasul do I still have to check them?
9
votes
2answers
203 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?
7
votes
1answer
447 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 ...
7
votes
1answer
80 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 ...
2
votes
0answers
32 views

Doing “Hoiche Kedushah” for Shacharit [duplicate]

Possible Duplicate: Hechi Kedushah anytime? Do any posekim say that even in shacharit, one can do the "hoiche kedushah" if the minyan-goers really need to go to work, or are in a rush for ...
17
votes
10answers
594 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 ...
8
votes
3answers
172 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 ...
13
votes
6answers
325 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 ...
7
votes
1answer
93 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 ...
6
votes
2answers
82 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 ...
5
votes
0answers
85 views

Eating out Friday night of Chanukkah

If one is lighting Chanukkah candles inside (for whatever reason) relying on the publicization to himself and his family, then what should he do on Friday night if he is eating out? Must he make the ...
3
votes
3answers
148 views

Precise Zemanim?

This site (see the paragraph starting with "accuracy") says that no one can predict the times for sunrise and sunset to within a minute accurately for a given location because of certain atmospheric ...
3
votes
3answers
98 views

Does a Late Bris Necessitate Teffilin?

When one makes a Bris after Shacharis, he wears Tefilin. If a Bris is made later on in the day, does he wear Tefilin? Why or why not? And if he does, does it require a second Bracha?
1
vote
1answer
58 views

Why whole-day or daytime fast?

Why is it that the 9th of Av is a full-day fast but the other post-Mosaic fasts are daytime-only fasts? What determined the length?
1
vote
2answers
102 views

Shalom alecha rebbi (u'mori)

What is the significance of the time it takes to say Shalom Alecha Rebbi (U'mori)?
1
vote
4answers
307 views

Is Hashem spiritual? [closed]

I know that Hashem is not physical but is He spiritual? Also does He exist in time?
0
votes
5answers
279 views

What makes prayer take so long?

I have noticed that some people take a lot longer to pray than others. I was wondering what exactly adds to this length? I do understand it's probably thinking of the meaning of the words etc. but ...
-2
votes
1answer
79 views

Is one permitted to report inflated driving hours?

In the United States, all applicants for a driver license (and permit) must have driven a certain number of hours, which varies per state. In some states the number of required hours is very high, ...