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3
votes
0answers
111 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?
3
votes
0answers
44 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
0answers
73 views

Referencing Iron before the Iron Age [duplicate]

Possible Duplicate: Why does the Torah mention iron when the Torah was given in the Bronze age? A guest brought up this question at the shabbos table, and no one had an answer. In D'Varim ...
2
votes
2answers
92 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
3answers
159 views

Is Hashem in time? [closed]

Is Hashem in time?
2
votes
2answers
90 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
1answer
73 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
169 views

Sitting on a toilet during Tisha B'Av

May one sit on a toilet during Tisha B'Av? Are there any requirements that he hurry up as much as possible?
2
votes
2answers
62 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
117 views

Shalom alecha rebbi (u'mori)

What is the significance of the time it takes to say Shalom Alecha Rebbi (U'mori)?
2
votes
1answer
52 views

How long did the showdown with Paro last?

Recently my torah-study group was discussing the events of Parshat Sh'mot, and someone claimed that people could only gather straw for bricks in the fall (I don't know if that's true) and the exodus ...
2
votes
1answer
83 views

Mesilat Yesharim - how much time per day for zehirut/watchfulness

The Mesilat Yesharim brings down zehirut (watchfulness) as one of the first steps to master. Zehirut in essence means working on cleaning oneself up from all bad behavior through analyzing one's ...
2
votes
2answers
142 views

Mishkan before/after Egel (Rashi & Ramban)

The Ramban and Rashi disagree when the Mishkan was commanded to be built. Either before or after the Egel HaZahav respectively. Can you provide SOURCES that are able to reconcile their differences? ...
2
votes
1answer
76 views

“If you have time, say this”

I have seen in many siddurim, mainly in korbonos, the phrase "if you have time, add this parsha". How do you know if you have time? It seems obvious that if adding it would make you miss zman ...
2
votes
1answer
76 views

If you've missed Zeman Kriyas Shema, what should you do?

Suppose a fellow realizes at 9:16AM that the Gra Zeman Kriyas Shema was at 9:14 and he never said Kriyas Shema yet. Is there any gain by saying it immediately even though it is past the later Zeman ...
2
votes
1answer
75 views

When is a grafted tree Kosher?

I understand that fruit isn't kosher if it is picked in the first 3 years of growth. However, what about grafting trees? If two branches come from trees that each more that 3 years old, but the ...
2
votes
1answer
190 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 ...
2
votes
1answer
36 views

Baal T'acher today - based on Rosh Hashana 4

Rosh Hashana 4a & Rosh Hashana 4b mentions a whole list of items that one does the sin of Baal T'acher. There is a dispute as to when this prohibition takes effect, ranging from the first festival ...
2
votes
1answer
93 views

Seeing dam due to relations and the halachos of vests

If a woman was a "ro'eh machmis tashmish" (she saw blood after having relations), does the day that it happened go into the account of her "vestes" (the days that she will have to be concerned she may ...
2
votes
1answer
200 views

Earliest time for Mincha Gedola

Looking at this myzmanim.com chart for Brooklyn, NY on 01/21/2013 it gives me the following Zmanim for Mincha Gedola. 30 fixed minutes after midday 12:37:27 Gra & Baal Tanya 12:31:53 ...
2
votes
0answers
63 views

Netzach, Selah, Vaed - what is the difference between these words?

Eruvin 54a says that it was taught by Rabbi Eliezer ben yaakov that wherever it says Netzach, Selah, or Vaed it means it will remain so forever. "כל מקום שנאמר 'נצח' 'סלה' 'ועד' – אין לו הפסק עולמית" ...
2
votes
1answer
98 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 ...
2
votes
0answers
74 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 ...
2
votes
0answers
40 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 ...
1
vote
5answers
308 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 ...
1
vote
3answers
115 views

What does “shachar” in “alos hashachar” mean?

We find a number of terms referring to when morning starts and then perhaps a similar term used to refer to the time of shachris. Alos HaShachar (עלות השחר) Ayeles HaShachar (אילת השחר) and Shacharis ...
1
vote
2answers
186 views

Learning secular topics for parnassah

Assuming that one should only learn secular topics for the purpose of parnassah (making a living), to what extent may one learn those topics? Is it only permitted to learn enough to get a job that ...
1
vote
1answer
116 views

Why 72-minutes for Dutch, Swedish, Finnish, and Northern European Jews?

I am a Swedish Jew and want to know why we wait specifically 72 minutes after eating meat/flaysh before eating miklhigs. A lot of people say it is an hour, but my understanding is that a one-hour ...
1
vote
4answers
325 views

Is Hashem spiritual? [closed]

I know that Hashem is not physical but is He spiritual? Also does He exist in time?
1
vote
1answer
114 views

How exactly does one fulfill Kove'a Itim La'Torah?

There is an obligation to set "times for learning torah." How exactly does one fulfill this obligation? Do you have to designate specific times in the day e.g. 9-9:30 am, or can it be a specific ...
1
vote
1answer
56 views

Should we really say kaddish for twelve months for a parent?

Is Kaddish really twelve months for a parent? When I said Kaddish for my father fifty years ago I read in the prayer book at the Chevra Kaddisha Bnai Jacob in Montreal that it should only be for ...
1
vote
3answers
137 views

Bittul Chometz before the time

After bedikas chometz on the 14th of Nissan by night and again on the 14th of Nissan by day we are "m'vatel" (nullify) all of the chometz in our reshus (property.) Can a person say already any time ...
1
vote
1answer
86 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
1answer
47 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 ...
1
vote
0answers
34 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?
1
vote
0answers
41 views

Time limit on repeating the shemona esra after forgetting to include an insertion

If a person forgets to say yaaleh vyavo for rosh chodesh during the shemonah esre, I understand they are supposed to go back and repeat the shemonah esre, this time saying yaaleh vyavo. Is there a ...
1
vote
0answers
114 views

Am I allowed to wear my Pebble Watch on Shabbat? [duplicate]

The Pebble is a smart watch that connects to a smart-phone via Bluetooth and can deliver messages to your wrist. Am I allowed to wear it on Shabbat if I disconnect it from my phone? Think of it, then, ...
1
vote
1answer
128 views

Eternal Gehinom

the talmud in Rosh Hashana 17a lists some sins which warrant eternal gehinom. Is this to be taken literally? or perhaps it means a very long time or until the end of this world.
0
votes
1answer
63 views

Does God have complete knowledge of future?

This question Did God know the holy place right away during the exodus? ask around the idea that G-d would choose His holy places during exodus time. However, if he knows the future, he couldn't ...
0
votes
1answer
78 views

Early bird discounts and ribbis

Are early-bird discounts ribbis? For example, "buy before March 1, 10% off", or "tickets $12 in advance, $15 at the door" Inspired by http://myparnasa.com/collecting-interest-ribbis/
-1
votes
0answers
37 views

Ramban on the mishkan being commanded before the Golden Calf

The Ramban on his commentary to the Torah says that the Mishkan was commanded in order to make up for the Golden Calf. He also says that the order in the Torah is chronological. How then does he ...
-2
votes
1answer
88 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, ...