Questions about how Judaism interacts with technological innovations.

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5
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9answers
426 views

Suggestions for Kosher iPhone apps

I'm an iPhone app developer with mostly Jewish & Israeli iPhone apps and I'm open to new suggestions or ideas for new apps that can be useful for Jewish people. Anyone here had a case that he ...
5
votes
2answers
149 views

Is glow in the dark Jewelry muktzeh?

Is a glow in the dark necklace or bracelet muktzeh? Would any action I needed to take matter if I was already wearing it before Shabbat started?
5
votes
3answers
262 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
1answer
308 views

How can I slow-cook dairy if my slow-cooker is meat?

I have a (meat) slow-cooker and very occasionally want to be able to slow-cook dairy foods. Is it possible to adapt my existing appliance for this purpose? The slow-cooker consists of a glazed clay ...
5
votes
1answer
73 views

Computer hacking in halacha

This question regarding legal complexity versus simplicity in modern law got me talking about the relatively simple structure of Jewish tort law. It also had me wondering: What sort of categorization ...
5
votes
2answers
89 views

Recommendation for a digital Torah codex for software developers

Could someone recommend a source for a machine-readable Hebrew with English Torah codex that may be used in software development projects? By "machine readable," I mean of a format that may be ...
5
votes
2answers
783 views

Why should A Capella music be allowed during Sefirah/Three Weeks?

Background: I'm not sure how I feel about: a)the custom to refrain from listening to recorded music during Sefirah or b)the assumption that recorded a cappella music is not considered instrumental ...
5
votes
1answer
101 views

Why does this app require me to agree not to use it on Shabbat?

I downloaded a Shabbat Alert app for my iPad, because i needed an alarm that would shut off after a few minutes. It worked fine (except that my iPad was muted), and it seemed to be quite halachic. In ...
5
votes
1answer
62 views

Using an electric hand dryer after netilas yadayim

Is there any issue with using an electric hand dryer to dry your hands after netilas yadayim either for a seudah or to remove ruach rah?
5
votes
1answer
70 views

Birkot HaTorah and Typing

Shulhan Aruch (Orah Haim 47:3) as well as Yalkut Yosef (47:14) write that before one writes down words of Torah, he must recite Birkot HaTorah (because people that write sometimes voice their ...
5
votes
1answer
79 views

Placing a stumbling block before someone trying to take advantage of me?

CAPTCHA stands for completely automated public turing test i.e. its function is to determine whether I am a human. Some CAPTCHA images are pictures of house numbers taken from Google street view. ...
5
votes
0answers
84 views

Do the laws of Ribis apply to loans of virtual currency?

If a Jew lends a player in a multiplayer online game money, and he knows without a doubt that that player is Jewish, does the prohibition of ribis apply? (After all, the only thing that changed was a ...
5
votes
0answers
92 views

G-d's name on screen readers

People who are blind or hard-of-seeing often interact with computers using devices called "screen readers". These screen readers will read aloud the words that are written on the screen (or in the ...
5
votes
0answers
138 views

What are the practical limits of shaimos in the common era? [duplicate]

Possible Duplicate: Hashems name on device I've tried to always be careful in regard to shaimos, but I'm still having difficulty understanding how it maps out in the age of the computer. ...
4
votes
2answers
165 views

What does “aerosol” have to do with spitting in the wind, or winnowing?

In this answer over here it is explained, that a "question" comes up with aerosol cans, based on a gemora which asks if spitting in the wind counts as winnowing. Now, the spitting in the wind case ...
4
votes
1answer
306 views

Sh'kiya alarm app (iOS)

Since the time-change, I have been rather off in calculating when I should say minchah. Is there an app which has an alarm for sh'kiya (or secular sundown timing if they differ) which is available for ...
4
votes
1answer
427 views

Is one permitted to watch tv or movies with immodest women?

Is a man permitted to watch tv or movies that feature immodestly dressed women? Assuming one will not have improper thoughts, is it prohibited to look at an immodestly dressed woman on a screen? Are ...
4
votes
1answer
240 views

Artificial non Kosher food

According to Vayikra we have: ז וְאֶת-הַחֲזִיר כִּי-מַפְרִיס פַּרְסָה הוּא, וְשֹׁסַע שֶׁסַע פַּרְסָה, וְהוּא, גֵּרָה לֹא-יִגָּר; טָמֵא הוּא, לָכֶם.‏ 7 And the swine, because he parteth ...
4
votes
1answer
322 views

Apple Watch on Shabbat

Tech experts: Is there any way in which the Apple Watch could be used by shomrei Shabbat with limited functionality? Note: this question does not seek to ascertain whether the full gamut of features ...
4
votes
1answer
87 views

Jewish-themed Open Source projects

I am a programmer and would like to begin contributing to an Open Source code base. What projects related to Judaism are under active development?
4
votes
2answers
97 views

Is a head-mounted lamp better than a candle for bedikas chometz?

A LED or Xenon lamp attached to the head (link shows example) seems to be ideal for bedikas chometz and superior to a candle? Do contemporary poskim offer a view?
4
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2answers
1k views

Jawbone UP on Shabbat

I recently received a new gadget: The Jawbone UP band. Look it up on Google, but the basic idea is it is a bracelet you wear 24/7 that measures all kind of things while you move around. Should it be ...
4
votes
3answers
587 views

Looking for daf yomi app recommendations

Are there any good daf yomi apps? I saw the video for the artscroll app but it doesn't seem to be out yet. Any recommendations?
4
votes
2answers
193 views

How do Shabbos mode scooters work?

Related to a question about shabbos and yom tov mode stoves I wonder about shabbos mode powered scooters. I recall seeing them advertised in the Jewish newspapers. How do they work, in terms of ...
4
votes
3answers
295 views

Does amirah L'akum apply to robots?

Can you ask/instruct a robot on shabbos to perform melacha on your behalf? Would this fall under the same category as amirah l'akum?
4
votes
2answers
120 views

What does an olive press look like?

Mishna, Maasros 1:7:: הַשֶּׁמֶן, מִשֶּׁיֵּרֵד לָעוּקָה. אַף עַל פִּי שֶׁיָּרַד, נוֹטֵל מִן הֶעָקָל וּמִבֵּין הַמָּמָל וּמִבֵּין הַפַּצִּים, וְנוֹתֵן לַחֲמִטָּה וְלַתַּמְחוּי, אֲבָל לֹא יִתֵּן ...
4
votes
1answer
273 views

Removing facial hair by laser treatment (for a man)

May a man remove his facial hair with a laser treatment? (that is the hairs that are normally ossur to remove by way of a razor.)
4
votes
1answer
114 views

What Have Modern Posqim said about Nuclear Weapons?

I'm looking to find teshuvot from modern posqim that discuss the permissability of possessing and using nuclear weapons.
4
votes
2answers
256 views

Can you use electricity on Yom Tov

Yom Tov is slightly different than Shabbat. For example, on Shabbat one cannot cook, but one can cook on Yom Tov provided that it is from an existing flame. My question is this... Let's say I have ...
4
votes
1answer
79 views

Solar analog watch be worn on Shabbos where in the dark the second stops?

Can a solar charge watch that the second hand stops moving in the dark after 30 minutes to save power and resumes operation when brought back in the light, be worn on Shaboss?
4
votes
0answers
144 views

Is using Siri a problem of Kol Isha?

As i say in this Purim Torah answer, we can't use smartphones because "The vaad found out that Siri's not a guy". (From the song Hang Up the Payphone by A.K.A Pella.) However, that inspired a ...
4
votes
0answers
195 views

Sous-vide cooking for Shabbat

Sous-vide is a method of cooking food slowly, at a precisely-controlled temperature. This article in the New York Times reports that this method is becoming more and more accessible to and widespread ...
4
votes
0answers
101 views

Slide Rule on Shabbos/Yom Tov

May a slide rule (mechanical device before calculators) can be used on Shabbos for Gemara calculations?
4
votes
1answer
368 views

Fitness Tracker On Shabbat

First I want to assure everyone that I asked this question to a proper halakhic authority and will proceed with my actions based on his answer. I am asking it here as well because I think it is an ...
3
votes
2answers
97 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 ...
3
votes
2answers
241 views

P'sak halacha by AI?

How good does artificial intelligence need to be before we can turn to a robot for piskei halacha? The accepted reason that even the most knowledgeable people need to ask legal advice from poskim is ...
3
votes
4answers
361 views

Computer Support for Nekudos [closed]

Can it hurt to include Nekudos (vowel marks) when typing Hebrew? Do all systems that support Hebrew lettering automatically support Nekudos? If not, do they at least degrade gracefully?
3
votes
2answers
225 views

Yichud in Elevator

Is there a problem of Yichud in the elevator? (especially considering there's a possibility that the elevator may get stuck) [and specifically those without cameras]
3
votes
1answer
197 views

Using a neighbor's encrypted Wi-Fi connection

This question asked whether or not one is allowed to use a neighbor's unencrypted (unlocked, without a password) Wi-Fi connection. This question touches upon a lot of different things in American law ...
3
votes
3answers
99 views

Electric Menorah

Are electric menorahs good for lighting on Chanukah? To remove some of the more obvious issues, let's assume that: It runs on batteries It's an incandescent bulb There are separate physical ...
3
votes
1answer
109 views

What bracha should be made on hydroponics/aeroponics?

Hydroponics is a method of growing food (mainly vegetables) with their roots in water, not soil. Aeroponics is when it is grown in air, with the roots being sprayed. What bracha should be made on ...
3
votes
1answer
69 views

Operating Cameras on Shabbat

Would it be permissible to take a picture with a film camera operated mechanically? If not what would be the melacha involved?
3
votes
1answer
717 views

Self-winding wristwatches on Shabbos

Can self-winding wristwatches be used on Shabbos?
3
votes
3answers
411 views

canned whipped cream on shabbas?

Can one use a pressure can of whipped cream on shabbas ? It is funny because on the actual can it says to ask your Rabbi if one can use it or not.
3
votes
1answer
96 views

Looking at a Kohen's hands on Video

One is not allowed to look at a Kohen's hands while he is performing Birchas Kohanim (source: my Artscroll siddur, but it is well-known too) Would this also apply if one was looking at a video of the ...
3
votes
3answers
612 views

Where can I find a professionally typeset pdf siddur suitable for mobile viewing?

I have used a number of siddurim apps for my smartphone/tablet and have found the text layout so abhorrent (nikkud floating all over the place, unprofessional kerning, ugly fonts etc.) that I've given ...
3
votes
2answers
234 views

Sources on the Halachic status of creating three parent child

See here for the background. The basic idea is that the DNA is taken from the mother and father, but rather than traditional IVF, the nucleus is implanted in a donor egg. So there is no male donor ...
3
votes
1answer
225 views

Which rabbis forbade cars 100 years ago?

"Venishmartem Meod Lenafshoseichem" I heard that there were Rabbonim about 100 years ago who forbade cars, saying that they were dangerous. Does anyone know who they were?
3
votes
1answer
33 views

Would there be any maaser derabbanan on hydroponically grown plants?

Related: What bracha should be made on hydroponics/aeroponics? This question was originally mentioned by Rabbi Eliyahu Fink in his Daf Yomi shiur (Shabbat 128). He was talking about tevel d'rabanan ...
3
votes
1answer
123 views

Wirelessly recharging a light-emitting diode on Shabbos

Could one use wireless recharging technology (see http://home.howstuffworks.com/question292.htm) to power a light-emitting diode (which does not have a filament that gets hot (see ...