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4
votes
1answer
75 views

Tfilat ha-Derekh “ותחזירנו לשלום”

In Tfilat ha-Derekh there are optional words "ותחזירנו לשלום". When do we add these? Sometimes it is written "if somebody means to return immediately say also..." and sometimes I've seen "at the same ...
4
votes
2answers
385 views

Eating dairy after pareve on meat equipment?

If I eat hot pareve food that was made on meat equipment, is there a waiting period before I can eat dairy? I had always assumed so -- that the heat transfers the meatiness to the pareve food -- but ...
4
votes
1answer
236 views

Why did Noah have to wait so long to exit the ark?

This is actually several similar questions compounded together. I hope this doesn't come off the wrong way, but it seems like Noah had the opportunity (and I'm sure he had the motive) to leave the ark ...
4
votes
1answer
67 views

Why does age of a water filter affect how to kasher it?

The Star-K Web site says about water filters: If they are metal and have been on [the faucet] consistently since the previous Pesach, they should be left on during kashering of the spigot [for ...
4
votes
2answers
68 views

בָּא אֵלַי הַפָּלִיט מִירוּשָׁלַ‍ִם … How late was he?

In Yechezkel 33:21: וַיְהִי בִּשְׁתֵּי עֶשְׂרֵה שָׁנָה בָּעֲשִׂרִי בַּחֲמִשָּׁה לַחֹדֶשׁ לְגָלוּתֵנוּ בָּא אֵלַי הַפָּלִיט מִירוּשָׁלַ‍ִם לֵאמֹר הֻכְּתָה הָעִיר That is, on the Fifth of Teves of ...
4
votes
1answer
132 views

Issues with starting work before Shacharis

What are the halachic issues/opinions/options regarding starting work early, i.e. before one is allowed or practically able to daven Shachris?
4
votes
1answer
36 views

Why was Eisav approaching?

Yaakov spends 20 years in the house of Lavan, after which he starts heading home. He sends messengers ahead to check on his brother Eisav (Bereishis 32:4). The messengers return and inform Yaakov ...
4
votes
2answers
133 views

Shabbat with time dilation in space

I know there is some discussion in space/planets.. How would you keep shabbos in space? The Rabbi I asked this shabbat pretty much said the same thing; and you go by Jerusalem time when in doubt. ...
4
votes
1answer
91 views

How were long-running talmudic discussions actually conducted?

Eiruvin 13b records two years-long disputes between Beit Hillel and Beit Shammai, and surely these are not the only long-running debates. How did that work in practice? Did they really have a single ...
4
votes
2answers
131 views

Why does Hashem sometimes wait until the very last minute?

I have noticed in my own life and in that of others, that very often during a time of tzarah, Hashem waits until the very very last moment to send a Yeshua. Are there any sources that discuss the ...
4
votes
1answer
125 views

How long does it take to become a kofer?

If a person for whatever reason momentarily has a thought which denies God, but then afterwards reaffirms his belief in Hashem, is that an act of kefira? Does a momentary lapse in belief constitute a ...
4
votes
1answer
67 views

Must one publicize a lost object if it had been found a long time prior?

Let's say, for whatever reason, someone found a lost object but did not get around to publicizing it for over a year. Does the Mitzvah to publicize it still apply, assuming that after the long ...
4
votes
1answer
484 views

Why did God take 7 days to create the world?

Generally we assume that God is omnipotent, and could have created the world in a single day\act, so He must have had a reason to organize creation into 7 days. Why? In other words: Why didn't God ...
4
votes
0answers
49 views

Morning seder as the “main” seder

In most Yeshivas with which I am familiar, morning seder, the regimen of learning before lunch, is the more in-depth and intense learning seder, while afternoon seder (session) is generally less ...
4
votes
0answers
57 views

How long can יוצא ונכנס be?

In regards to kosher supervision, what is the largest single gap that a mashgiach can leave the premise and still be considered practicing יוצא ונכנס?
4
votes
0answers
47 views

Davar Ha'avad on Chol HaMoed — Loss coming later

It says in SA OC Siman 537 that one is allowed to do a malacha on chol hamoed if it's a "davar ha'aved". That is to say if the person doesn't do the malacha now it will come to a loss ("hefsed".) ...
4
votes
0answers
78 views

Connection of Toch Kedei Dibbur to Walking 4 Amot

According to this, the gemara compares Toch Kedei Dibbur (the length of time neccasary to greet someone; see Shalom alecha rebbi (u'mori) ) to the time it takes to walk 4 amot (cubits). Thus, with ...
3
votes
3answers
326 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?
3
votes
2answers
2k views

How long is the required suspension of marital intimacy after childbirth?

How many days a must married couple refrain from intimacy after their baby is born?
3
votes
1answer
222 views

What are “18 minute” matzot?

From my understanding, the dough becomes chametz if it is not baked within 18 minutes. So, aren't all matzot 18 minutes? Like the words of the seder, what makes the "18 minute" matzot different from ...
3
votes
2answers
115 views

Daf Yomi Scheduling for Shabbos, Yom Tov, and Sundays

With the twelfth Siyum HaShas behind us, I was wondering what is the best way for a person to maintain their Daf Yomi schedule on Shabbos, Yom Tov, and Sundays. Is it best to learn at a different time ...
3
votes
3answers
147 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?
3
votes
1answer
683 views

Self-winding wristwatches on Shabbos

Can self-winding wristwatches be used on Shabbos?
3
votes
1answer
129 views

Logistics of starting Shabbat early?

It is not uncommon to start Shabbat early in the summertime, I presume so that dinner will not start too late. What I have seen is that in congregations that do this, the men go to shul Friday night ...
3
votes
2answers
131 views

Shalom alecha rebbi (u'mori)

What is the significance of the time it takes to say Shalom Alecha Rebbi (U'mori)?
3
votes
1answer
95 views

Blessings on Birthdays

There is apparently a practice among contemporary Jews of giving out blessings on one's birthday. Is there any source for this in the Jewish tradition?
3
votes
2answers
74 views

(When) should skipped parts of davening be made up?

If someone skips parts of shacharit in order to say shemoneh esrei with the congregation, (when) should the skipped paragraphs be made up?
3
votes
1answer
197 views

How can you keep Shabbos till Tuesday?

I have heard that there are people who keep Shabbos till Tuesday. I would like to understand how that works practically. A few examples of puzzling situations: What shmoneh esrei does such a person ...
3
votes
1answer
74 views

Pesik Resheih DeLa'Avar (inevitable consequence relating to the past)

The RaM"a (Y"D 87:6) cites an opinion that one may shouldn't stoke a flame beneath a non-Jew's pot, for fear that there's some milk and meat residue in it, and you might come to cook said milk and ...
3
votes
2answers
101 views

Where does the funeral tradition of burial within 24 hours originate?

Where does the funeral tradition of burial within 24 hours originate? A Google search result pointed me towards this passage from the Torah as being the reason: Deuteronomy 21:22-23 And if a man ...
3
votes
1answer
55 views

How long is לאלתר?

In the mishna on Gitin 27a, the rule is that if someone delivers a get (bill of divorce) from another country, loses it, and finds it again, should not deliver it to the woman unless he either finds ...
3
votes
4answers
142 views

How does one calculate how much time to devote to torah learning and how much time for livelihood?

In Judaism, the study of torah is considered above all else. However, there is also a need to be able to provide for one's family. How does one calculate the amount of time one should devote to torah ...
3
votes
2answers
158 views

Starting Mincha right before Shekiya

According to those who pray Mincha only up to Shekiya (sunset), are you required to finish Mincha before Shekiya or just required to begin it before Shekiya? (Sources.)
3
votes
1answer
275 views

Breakdown of Yirmiyahu's 70 year prophecy

Can someone supply a good breakdown of Yirmiyahu's 70 year prophecy, and the misinterpretations of the prophecy? This is what I've learned in the past: Yirmiyahu made a prophecy that 70 years after ...
3
votes
1answer
95 views

Why do I care what time Bnei Melachim (sons of kings) rise in the morning?

The Mishnah in Berachothch2? teaches that one may recite Shema' until the end of the third hour of the day, "for it is the way of the sons of kings to rise by three hours." Why is that the deciding ...
3
votes
2answers
147 views

Is there a concept of time in Gan Eden and the world to come?

Does Time exist in Gan Eden and the world to come. I heard that you cant get bored of these places since there's no time there. Also heard midrash that Yitchak Aviinu went to Gan Eden for 2 years ...
3
votes
0answers
46 views

What happens if I wrap my tefillin before the earliest time to wrap tefillin? [closed]

The earliest time to wrap tefillin in my town is 6:14 (for the next little while), on Monday and Thursday we start at 6:15. Is it OK if I finish wrapping my tefillin before 6:14? Do I still get the ...
3
votes
0answers
51 views

Where and when did the numerical time units (hours) originate? [duplicate]

The Torah states no numerical divisions for the day. The closest numeric we find is that there are 7 days in the week, and that the start of the "day" begins with "erev" (and there are debates on when ...
3
votes
0answers
58 views

How much time must pass before making a second beracha on the same food?

If you made a beracha on a food or drink item and you took a sampling of it, how much time must pass until the next sampling for you to be required to make an additional beracha?
3
votes
0answers
50 views

Inconsistent scheduling for the musaf offering

In P'sachim (58a), Abaye frames a disagreement between Rabbi Yishma'el and Rabbi Akiva regarding the ordering of the korban musaf and the bazichin (bowls of frankincense burned when the old showbread ...
3
votes
0answers
55 views

“Yichud L'Olam” in Hilchos Muktzeh

In Hilchos Muktzeh we find there is an idea that even a rock ("evan") one can be m'yached (set aside) for a certain purpose allowing one to move it around on Shabbos (See SA OC Siman 308 Sif 22.) ...
3
votes
4answers
337 views

Rishonim/Achronim time period differentiation

When was the end of the Rishonim time period and the start of the achronim time period? Who, what, why, and how did this come about? What caused this abrupt change in deemed mental and halachot ...
2
votes
2answers
157 views

Can Jews standing naval watches take their shabbat in shifts?

Suppose you have an major naval ship (aircraft carrier or nuclear sub) with a small complement of Jews on board. They're divided by the executive officer to stand watches, same as the rest of the ...
2
votes
2answers
104 views

How is it possible that Yisrael went out of Egypt after only 210 years due to hard work?

Is it possible to say that the Jews were in Egypt for only 210 years because they were worked so hard? Would Hashem really do that if he already told Avraham that they would be there for 400 years?
2
votes
3answers
172 views

Is Hashem in time? [closed]

Is Hashem in time?
2
votes
1answer
153 views

Are there prophetic perfect tenses?

In Christianity, there is a school of interpretation where God sometimes describe future events using past tenses. God, being outside of time, see future events as if it already happens and hence use ...
2
votes
1answer
42 views

What is the deadline for yibbum?

If a man dies without children his brother is expected to marry his widow. He's not required to; he could instead perform chalitzah and then the woman is free to marry somebody else. While his ...
2
votes
2answers
70 views

Can the time a dream occurs influence its significance?

Does the time during the day or night when one has a dream have any influence on how meaningful it is? I've heard it does, but have no good source, and wonder whether it's true.
2
votes
2answers
771 views

Tashmish Ha-Mitah B'yom (Marital Relations by day.)

It says in Shulchan Aruch Siman 240 Sif 11 that it's prohibited to have marital relations by day unless the house is dark ("Bayis Afel".) The Rema adds that a Talmid Chacham that covers himself with ...
2
votes
1answer
87 views

Kids waiting between meat and milk

There is a rabbinic obligation to wait between meat and dairy though customs are diverse regarding how long to wait, ranging from 1 hour (for those who come from e.g. Dutch communities) to the more ...