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6
votes
4answers
200 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
233 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 ...
6
votes
2answers
104 views

Give ma'aser on money that you didn't make yet?

Can I give ma'aser on money that I didn't earn yet but I know I will be earning in the future?
6
votes
3answers
97 views

Blatant foreshadowing in the Torah

Genesis 13:10 has the following verse: ויישא-לוט את-עיניו, וירא את-כל-כיכר הירדן, כי כולה, משקה--לפני שחת יהוה, את-סדום ואת-עמורה, כגן-יהוה כארץ מצריים, בואכה צוער Translation of bold: ...
6
votes
4answers
151 views

Waiting Between Meat & Dairy According To The Geonim

It seems as though the Geonim - although disparate and diverse in their opinions on many issues - seem to be rather united on the understanding of the Gemara on the subject of waiting after meat ...
6
votes
1answer
111 views

Cicadas - once in 17 years

I was reading an article today regarding the Cicadas which appear once every 17 years. Is there any Sefarim that discuss this phenomenon? Also if they were created at the time the world was created, ...
6
votes
2answers
127 views

Within what time frame does one have to give maaser on a large sum?

If someone suddenly has a large sum of money from a lottery or inheritance or gift, how much time does one have to disperse maaser money from that?
6
votes
1answer
193 views

No mitzvah to wear tefillin every day?

I heard that the Bet HaLevi and the Peri Megadim hold that there is no Mitzva for a person to don Tefilin everyday. Can someone source these opinions and explain exactly what they are meaning to say?
6
votes
0answers
51 views

Intentionally using a grace period on a rental

I recently rented a bike for a few hours, and the person in charge of the rental told us that we have "X number of hours, and a 15 minute grace period," followed by the warning that if we don't return ...
6
votes
0answers
29 views

Skipping parts of pessukei dezimroh to get to work on time?

Kitzur shulchan aruch states that if a person is afraid of being late to recite shmonei esreh with minyan, it is allowed to skip some parts of the pessukei dezimroh... Does this apply to a person that ...
6
votes
1answer
56 views

Liability of substitute

If someone has an appointment, and arranges for a babysitter to come to watch his/her children while he/she goes to the appointment, and the babysitter doesn't show up, so the parent misses the ...
6
votes
0answers
142 views

Rishonim saying Ester took place during the second bayis

Elsewhere on this site, avi cited sources to the effect that, contrary to the Bavli (M'gila), the events recounted in the book of Ester took place after the second bes hamikdash was built. Do any ...
6
votes
0answers
128 views

Chatzi LaHashem

I've been having this discussion with my friends and family about the Halacha of dividing Yom Tov into Chatzi LaHashem (half of the day devoted to prayer and learning) and Chatzi Lachem (half of the ...
5
votes
3answers
144 views

How long was Yosef in prison?

We know from Gen 37 that Yosef was 17 when he went out to meet his brothers and ended up on the way to Egypt, and we know from Gen 41:46 that he was 30 when Paro appointed him as second in commend. ...
5
votes
3answers
3k 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 ...
5
votes
4answers
94 views

Why strong wind when splitting the sea?

The verses describing the splitting of the Yam Suf (Reed Sea) say a strong wind blew overnight before the sea split. To me, this implies a gradual process of moving a great deal of water. On the ...
5
votes
4answers
202 views

Eating meat: when do the 6 hours start?

When you eat meat, when do the 6 hours that you have to wait begin? When you start eating or when you end? Sources are always appreciated.
5
votes
2answers
169 views

Milk after meat - less than 6 hours - for someone who has dentures

The reason given for waiting 6 hours after meat is since some of the meat may be stuck in your teeth. If someone uses dentures, and has two pairs - one for meat and one for dairy - would they still ...
5
votes
3answers
244 views

Would time travel be assur/mutar?

Inspired by this question which the author states is not a question of issur/heter. Assuming time travel is possible (to the future or past) is there any reason it should be assur?
5
votes
3answers
303 views

Is there a time limit for Borei Nefashos and Beracha Me'en Shalosh?

It seems that there's a 72-minute period after eating in which one must bentch. Does this also apply for Borei Nefashos and Beracha Me'en Shalosh?
5
votes
3answers
212 views

In an average shul, how long before sunset does a combined weekday Mincha/Maariv service start?

Many shuls worldwide run combined weekday Mincha/Maariv services. How long before sunset do these services tend to start? Please specify a range, measured in "number of minutes". Also, please cite ...
5
votes
2answers
140 views

How often is it neccessary to check the strings of an Eruv?

If you have an Eruv Chatzeros for carrying, how often is it necessary to check it to make sure that it is properly strung and you can still carry on Shabbos?
5
votes
2answers
90 views

Does Genesis 2:4 say there was only one day of creation?

Right after it says all the different parts of the world and sky being created on six separate days and rest on the seventh, it says, "These are the generations of the heavens and the earth when they ...
5
votes
2answers
182 views

Birkat Kohanim at a late Musaf

Generally speaking, Birkat Kohanim can/is done at any daytime prayer. We do not do so at mincha because in the afternoon people have already eaten and the kohanim may have drunk some alcohol which ...
5
votes
1answer
92 views

Trouble understanding this Kaf HaHaim

My friend asked recently asked me an interesting Hakira in Halacha. Is it better to eat Pat Shahrit Hamosi or Pat Shahrit Mezonot and go to the Mikve (because of a lack of time)? I started looking ...
5
votes
1answer
90 views

Saying slichos at any time but “ashmores haboker”, should we take out references to the early morning time so we are not “lying”?

Many of the Slichos refer to the early morning time: "Ashmores Haboker", which is clearly not applicable to those who say late slichos (say at 8 AM) or who say it early at night (say at 10 PM, let's ...
5
votes
3answers
580 views

Can a woman delay going to the Mikvah?

Can a woman delay going to the Mikvah on her Mikvah night? That is, if it is the seventh day and she is scheduled to go to the Mikvah, but it turns out to be inconvenient (for example if a friend's ...
5
votes
0answers
302 views

How do people daven so quickly, and what's the support for it?

I learned that one must clearly enunciate every word of tefila. At the least this would include Shemoneh Esreh and Shema, but one might presume it includes all of davening. This question can easily ...
5
votes
1answer
191 views

Drinking from a drinking fountain throughout the day

This question deals with someone who has a cup of a drink and carries it around all day long, possibly refilling it, etc. I am wondering, for someone who drinks from a drinking fountain every time he ...
5
votes
0answers
142 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 ...
5
votes
1answer
279 views

First year counted from creation [duplicate]

What is the first year for which there exists a record of it being dated according to the currently used system that starts counting from creation?
4
votes
4answers
452 views

How long do I have after a bread meal to bensch?

How long do I have after a bread meal to bensch (say grace)? Does it matter if I am distracted by other things? For example, I eat at 1 pm, then I work for 5 hours, go to the store for half an hour, ...
4
votes
2answers
100 views

Why did it take so long to conquer and divide the land?

We learn that Yehoshua took 7 years to conquer the land and another 7 to divide it. Why did both of these take so long? Conquest (at least from the details of the description in the text) took at ...
4
votes
1answer
565 views

How long is Orthodox Conversion?

How long is the conversion process into Traditional Orthodox and Modern Orthodox? What is the minimum time period in most cases? I know converts can spend years preparing until they actually finalise ...
4
votes
2answers
364 views

Can you build a succah on Sukkot?

After reading How do I do the car-door-sukkah trick?, i wondered: isn't this building it on Sukkot? So, is it permissible to build a succah on Sukkot? I originally thought no, because i know that ...
4
votes
2answers
142 views

Retroactive Get to prevent mamzerut?

If while a married couple are divorcing but before the husband has given a get at the Beit Din, the woman gets pregnant from a new boyfriend, can a get be given retroactively? Would it help that the ...
4
votes
4answers
231 views

How to celebrate Rosh Hashanah one day later?

Erev Rosh Hashanah falls this year in my country on public holiday. We would like to have a celebration with some other families (and a lot of kids) - it was great success last year - but we are ...
4
votes
4answers
95 views

Is Moshiach Going to last forever?

Is Moshiach Going to last forever? When Moshiach comes are we going to have it for eternity? If there are different opinions the please state them all.
4
votes
2answers
127 views

Why are Pidyon HaBen ceremonies done towards evening?

Most Brissim are done in the morning, as it is mentioned that "Zerizim Makdimim L'Mitzvos". Why is this not applicable to a Pidyon Haben ceremony? If it is applicable, then why have I observed that ...
4
votes
1answer
71 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
1answer
84 views

Waiting six hours when chicken became meat

Poultry was once not considered fleishig. If someone had eaten chicken immediately before the rabbis decreed that poultry was fleishig, would he have had to wait his customary number of hours before ...
4
votes
2answers
203 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
3answers
137 views

Why are we required to light Chanukah lights only for about half an hour?

Since the miracle of the oil of Chanukah was that from one flask of oil they miraculously had enough oil for the menorah to burn all night for eight days, why did Chazal require us to light only for ...
4
votes
1answer
184 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
2answers
64 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
115 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
2answers
115 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
85 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
127 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
120 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 ...