Questions tagged [technology]

Questions about how Judaism interacts with technological innovations.

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2answers
377 views

Can email be used on Sabbath? [closed]

Why did I receive email from this site on a holiday such as Succoth when we are not allowed to use any electronics?
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1answer
670 views

Does texting count as speech?

For instance, say that I text someone "I promise I'll do X." Does that have the same status as if I said out loud the same thing? The same question can be asked with respect to Shevuos (as ...
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1answer
258 views

Can one use a weather-dependent lawn sprinkler on Shabbat?

One may not intentionally water his lawn on Shabbat (See here.) A shul congregant told me that he has a sprinkler that waters his lawn based on the weather forecast. It is not set on any type of ...
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0answers
89 views

Kol Ishah through filters

According to the opinions that one may not listen to a woman's recording: I've been playing around with some music recording programs, particularly the functions that modulate the voice and apply ...
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1answer
167 views

Are there any fonts that allow for the name of Hashem to be typed the way it is in Sephardi siddurim?

I'd like to be able to typeset various tefilos on my computer, so I'd like to be able to type the name of Hashem the way it appears in Sephardi siddurim, like this: Are there any fonts that allow for ...
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3answers
545 views

Pokemon Go and Churches

This is intended to be an academic question. All practical halachic questions should be decided based on a consult with your local Orthodox rabbi. Pokemon Go is a new game for smartphones where you ...
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0answers
185 views

Does a dam invalidate all water downstream of its river for mikveh?

One of the requirements for a mikveh is that a body of water may not be artificially redirected or rechanneled. Does that mean, for example, that an entire river downstream of a dam, either for ...
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3answers
381 views

Acceptable to receive transplant of organs grown inside pigs?

If scientists could grow human organs inside of pigs, would it be halachically acceptable to receive a transplant of such an organ? A recent article in National Public Radio about US and British ...
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2answers
372 views

Jewish Minecraft instructions?

My 8 year old son wants to build a mizbeyach or a simple beit hamikdash structure on Minecraft. I know nothing about Minecraft and he is not great at it, though he uses it a lot. Does anyone know how ...
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1answer
1k views

Can DNA be used as evidence to prove that someone is Jewish? [duplicate]

Apparently, there were a number of child Holocaust survivors who were separated from their parents and never found them. They were adopted and raised by Non-Jewish families. As they became adults, ...
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3answers
138 views

Seeking additional information about the “seasonal drift” problem of the Judaic calendar

During my shul's annual *Tikun Leil Shavuot", I plan to give a short lecture about the "seasonal drift" affect of the Judaic calendar. See this Mi Yodeya answer for additional info. I could use some ...
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0answers
71 views

Can you double wrap chametz food in the oven before Pesach? [duplicate]

I am going largely by hearsay on this... Two reliable rabbis have told me that if you want to heat kosher food in a non-kosher oven, you can double wrap the food in foil and heat it in the oven, and ...
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0answers
550 views

Looking for online German (Yekke) Torah Trope practice

As a lad, I often attended a German (Yekke) shul in my neighborhood, where they used the Yekke Torah trope. My main shul sometimes used this trope during Yom Tov readings. (I.e. - the Yekke trope is ...
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3answers
398 views

T'chum shabas maps?

There are many better or worse maintained maps of eruvei chatzeros available to the public, which are a boon to travellers to a new place interested in where they can move things outdoors during ...
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3answers
748 views

Mitzva to hear Megillah Esther

My question has two parts: (1) I believe it is a mitzvah to hear the entirety of Megillat Esther twice on Purim, both at maariv and also at some point during the daytime. Is that correct? (2) would ...
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0answers
61 views

Has there ever been an expert system (i.e. computer program) developed for answering simple halachic queries?

As a computer programmer and student of the Torah, I've conceptualized the idea of codifying halacha - quite literally - in an expert system, allowing one to submit halachic queries and receive ...
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1answer
505 views

Can meat grown from living cells be kosher? Is it eiver min hachai?

Earlier questions such as In vitro meat — further questions dealt with meat grown from stem cells of slaughtered animals. This question is specifically about meat grown from stem cells taken from live ...
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2answers
162 views

Chassidic aversion to dual-sided implement-wearing

Disclaimer: This may sound like purim-torah-in-jest, but since Mi Yodeya has pasken'ed that only Adar Sheni is elegible for such, I (despite my personal minhag) post this question in all seriousness. ...
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1answer
103 views

Can a public road include an underground area below it to qualify as a Reshut Harabim?

On Shabbat, one may not carry in a Reshut Harabim. Kitzur Shulchan Aruch 81:2 says that there is an opinion that a road not having at least 600,000 people passing by it daily would not be considered ...
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0answers
31 views

Peru Urevu Halacha question [duplicate]

If a jewish male donates sperm to a jewish couple who cannot have children for whatever purpose. By donating sperm does the donor fulfill the mitzvah of Peru Eruvu? If the answer is yes, then the ...
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2answers
147 views

Scheduling Email for 3AM and Gneivas Daas

Is is permitted to schedule an email for the wee hours of the night, like 3AM, to give the impression that you were working late? Is it significantly well known that there are services like ...
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1answer
171 views

Is there an online source for trope occurrences?

As a Torah reader, I like to find nuances and inherent meanings in trope (cantillation) nuances and "unusual" occurrences in the Torah. For example I'm looking for all the places that have two ...
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0answers
21 views

Has cryonics been treated in Rabbinic literature? [duplicate]

Has it been treated by rabbinic literature? If yes, what does it say about cryonics?
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2answers
268 views

Can one wear Yaktrax on Shabbat?

Yaktrax is an ice traction "device" that you slip onto the bottom of your shoe. Can one wear this on Shabbat? Possible concerns: boneh - "building". Wearing the device involves stretching a band onto ...
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2answers
252 views

Can one kasher anodized metal?

Anodized metal is metal with an increase in the thickness of the natural oxide layer on the surface of metal parts. Is there any issue kashering it, or is it basically like metal with a layer of rust ...
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2answers
2k views

Pirating software that has already been bought

Say, for instance, that I've previously bought a set of DVDs (for example, the workout program P90x, which contains several DVDs in a set), and that I am currently in a different country and have not ...
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0answers
286 views

The Mekor Baruch's intructions of making gold from copper

Rav Epstein in his Mekor Baruch 3:19:6 brings a story about him and a maggid. The maggid was looking for a certain sefer which instructs one how to make gold from copper. The Mekor Baruch (who had the ...
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2answers
453 views

Can an ultrasound be relied upon?

I have read reports of the accuracy of gender prediction from an ultrasound with numbers ranging from 90-98%. There is a halacha (Y.D. 194:11) that if a fetus sticks its hand [or possibly any limb] ...
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2answers
368 views

Netilas Yadayim with automatic sinks

It seems there is precedent to allow for netilas yadayim when you don't have a cup, by turning the sink on and off for each rivi'is per hand. By employing this method you satisfy the requirement of ...
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4answers
454 views

Comprehensive map/list of active Orthodox synagogues in the U.S

Does anyone know of a map or list of all the active Orthodox shuls in the U.S.? When I was looking for which residencies to apply to it was my limiting factor and sometimes it was hard to find out ...
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0answers
269 views

Looking for information about going to Mikvah with an IUD [closed]

I am interested in going to a Mikvah for the first time. I have an intrauterine device (aka IUD, a form of birth control) and get very little or sometimes no bleeding. I don't now how to determine ...
7
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1answer
801 views

Studying Torah while lying on a bed?

I often watch Shiurim and use Mi Yodeya while lying (sometimes sitting) on my bed. What are the parameters for one's position while studying Torah? Am I doing something wrong?
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1answer
105 views

Hydroponics – Allowed on Seventh Year?

Would hydroponics be allowed in Israel on the seventh year, when there are additional restrictions on farming the land?
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1answer
520 views

Are there any contemporary “Gedolim” that prohibit the use of davening from a smart phone?

It took me a long time to upgrade my technology, but I admit that lately, I have been using my smart phone during davening. My rav doesn't object, but some of my friends told me that it's prohibited ...
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0answers
335 views

Is it better not to wear a watch on Shabbat?

I know it is permissible to wear a watch on Shabbat, and I have already perused this question about the particulars of what kinds of watch features are and are not permitted (ignoring the issue of ...
5
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1answer
217 views

Does this count as Tzedakah?

I found out there's an app that gives money to charity depending on how much you run. You can choose between dozens of organizations that help stop hunger, help the homeless, cure cancer, provide ...
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0answers
525 views

Nest Thermostat and shabbat [duplicate]

I'd like to know if a Nest Thermostat would be allowed by halacha? They say it programs itself and it realizes when you come home, so when you come home on shabbat, the machine will detect it, and it ...
6
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1answer
1k views

Television on Shabbos

Let's take as a given that it is forbidden to turn a television on or off or otherwise use electricity on Shabbat. Let's also ignore the whole issue of watching TV in the first place. We can also ...
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1answer
231 views

Is there a prayer I should say before taking off in a plane?

On Monday, I am going to take a flight. I would imagine I should say the Shehecheyanu when I land, thanking God for my continued existence, but is there a blessing I could or should say when I take ...
2
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1answer
279 views

Is there an Android Tikkun App that has sound?

During the "pre smart phone days" (Yes, that DID exist), I used Trope trainer to practice some of my laining and to train my kids and some Bar Mitzvah boys. I recently downloaded the "Tikkun Korim" ...
6
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1answer
918 views

Is it forbidden to use a sand timer on shabbos?

Everyone I know seems to say that using a sand timer (hourglass) on shabbos is forbidden. The question is why? Is it because of sifting? Is there some other melacha involved? Is it actually forbidden?
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0answers
69 views

Equal volume when doing birkat kohanim with a microphone

I attended a musical davening this week, and to accommodate the large crowd, the chazzan wore a microphone. The kohanim however did not. The result of this was that the chazzan's voice ended up much ...
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1answer
509 views

Is shaving with this kosher?

Is shaving with this laser shaver kosher? I don't keep a beard and not looking forward to keeping one at all but I don't use razors etc, only electric shaver etc. This "razor" uses a laser for "...
3
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0answers
113 views

What halachic principles are involved in starting the iRobot on Shabbos with a timer? [closed]

What halachic principles are involved in starting the iRobot on Shabbos with a timer? Can it be turned on anytime or just at night? Is it like security cameras in that it is OK to walk by them if ...
3
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2answers
379 views

Determining the status of bedika cloths via digital media

Determining the colours on a bedika cloth is a wisdom that has been passed on from generation to generation. Preferably a bedika cloth is checked by the light of the sun ('white light'). I've have ...
4
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2answers
611 views

Is an on-call doctor allowed to read non-emergency text messages on Shabbat?

My shul has a few doctors who carry their cell phones with them. When their phones buzz (B"H, they are smart enough to put the phones on vibrate mode while davening.) with a text message, they, of ...
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0answers
96 views

Large scale hydroponics and Shmita

The gemara in Nedarim 59 (among many other places) discusses the concept of shmita produce and plants grown from them retaining their status when the original "seed" isn't destroyed when planted. In ...
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2answers
194 views

Depilatories- creams or “shaving powders” on Shabbos

Is it permissible to use Depilatories (creams or "shaving powders" which chemically dissolve hair) on Shabbos? and if not- why?
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1answer
201 views

I am looking for the Torat Emet program to list verses for names

I am looking for a direct link to the Torat Emet program that helps you find verses for your hebrew name. I am looking for more verses for my name to use during the shmona esrei. I saw a mention of ...
5
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2answers
711 views

Using the Coravin Wine Preserver on shabbat

There is a new device called the coravin which allows one to insert a needle into a cork of a wine bottle and the wine flows through the needle by using argon gas (protects quality of wine) and by ...

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