11 votes
Accepted

Chanuka candles if missed the night

Shulchan Aruch O.C. 672:2 שכח או הדד ולא הדליק [....] ומיהו הני מילי לכתחילה; אבל אם עבר זה הזמן ולא הדליק, מדליק והולך כל הלילה. ואם עבר כל הלילה ולא הדליק, אין לו תשלומין If one forgot and didn't ...
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7 votes

Tsohar - a window or a stone in Genesis 6:16

This can be found in Rashi, Onkelos, and Ibn Ezra. To cite a post about this on Balashon: The word tzohar (or tsohar) appears only here in the Tanach and there are a number of explanations for the ...
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7 votes
Accepted

Can one light Chanukah candles with ear wax?

No, one cannot. Mythbusters determined experimentally that earwax candles are not effective: The skin cells, hair, fatty acids and cholesterol contained in earwax combust quickly and at different ...
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  • 46.8k
6 votes

Why can't one have marital relations with the light on?

The Gemara there explains: אמר רב חסדא אסור לו לאדם שישמש מטתו ביום שנאמר (ויקרא יט, יח) ואהבת לרעך כמוך מאי משמע אמר אביי שמא יראה בה דבר מגונה ותתגנה עליו It is forbidden to have relations during ...
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6 votes
Accepted

What does מיללעליכט mean in this Responsa?

As Dr. Shmuel mentioned in a comment, this section is quoted here on page 24 footnote 86. There he elaborates: ר' שלמה קלוגר מצא שני כוונים אחרים של היתר ללמוד לאור הנר בליל שבת. התיר בנר ...
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5 votes

KosherLamp closed by window (Moris Ayin?)

Rabbi Moshe Feinstein actually addressed a similar concern, Maris Ayin with regards to your lights on timers -- an onlooker will see your dining room suddenly -- click! -- lit up. He allowed it; so I'...
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  • 126k
5 votes
Accepted

The light hidden in Torah?

Perhaps surprisingly, this is discussed in Reshimot Shiurim of Rav Soloveitchik to Berakhot 34a. He writes that the "hidden light" is the light of knowledge that is found in the Torah and will be ...
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  • 34.8k
4 votes

Can one have a glass candelabra with seven branches?

Rabbi Cohen of Dose of Halacha writes that it's ok: The Gemara (Rosh Hashana 24a; Menachos 28b) writes that it is assur deoraisa to create a seven-branched candelabrum as the Torah (Shemos 20:20) ...
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  • 6,069
4 votes

Can you use an LED light array for searching for chametz?

Rav Moshe Mintz, a posek in Ner Israel, told me that you can ideally use any light that can be focused in one area (as opposed to the sunlight or the main light in a room, which lights up the entire ...
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4 votes

Snake lamps on Shabbos?

Either A) Get a pair of timers for the lamps OR B) Switch both lamps on before Shabbos and leave them on all Shabbos. Just point only one at the snake at a time.
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4 votes
Accepted

Is it a problem to use the lights of the Chanuka candles as the sole source of light in a photograph?

This is the psak of Rav Eliyashiv
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  • 39.5k
3 votes

Can you use a stolen menorah?

This is not a complete answer but just my impression. I am assuming that the underlying concern is one of mitzvah haba b'aveira, a mitzvah whose performance comes about through the commission of a sin....
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  • 36.5k
3 votes

When can one have light in the room during marital relations?

The relevant discussion is in S.A. O.C. 240. The Mechaber seems to forbid without exception (the Taz brings the Arizal that says the same thing). The Ramo allows an indirect light (as in through a ...
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  • 31.3k
3 votes

When can one have light in the room during marital relations?

See the Rambam in הלכות איסורי ביאה Ch 21:10 that it's forbidden. However, it would seem, that having the lights on before and after the act would be allowed - along with everything else in 21:9. ...
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2 votes

What's the best way to make wick-and-oil work for Chanukah?

I use and love the tripod wick holders. (The middle ones pictured here). They are easy to set up, and keep the wick in the center. This prevents the sides of the glass from burning or melting (if they ...
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  • 42.7k
2 votes

Glow sticks on Shabbos

Rabbi Nachum Rabinowitz talks about this in Techumin vol 13. He goes into it a bit (fire/nolad/מתקן מנא), and ultimately concludes that he doesn't see any reason for this to be assur and then ...
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  • 3,626
2 votes

Which types of light bulbs are 'only' an issur d'rabbanan to activate on Shabbat

Here is an article by Rabbi Michael Broyde & Rabbi Howard Jachter that discusses the entire topic: http://www.daat.ac.il/daat/english/journal/broyde_1.htm (side note regarding heating a bulb ...
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  • 193
2 votes

Tsohar - a window or a stone in Genesis 6:16

You can see a series of commentaries on Bereshit 6:16 here. Some of the more relevant ones include Ibn Ezra צהר. מקום שיכנס ממנו האור והוא מגזרת צהרים. Bereshit Rabba "צֹהַר תַּעֲשֶׂה ...
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2 votes
Accepted

If I said the blessings over already lit candles, have I fulfilled my hannukah mitzvah?

In short, the mitzvah to light has already been fulfilled by your wife, assuming she's Jewish, as per answers and comments to this question, and you have already gained the mitzvah via your wife's ...
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  • 68.7k
2 votes

Is there a problem of image projection on Shabbat?

I don't think there is any problem with doing this. You are not creating the image, you are just allowing it to be seen by removing something which prevented you from seeing it. There is a discussion ...
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  • 1,628
2 votes

Using oil lamps on Shabbas in old times

These lamps were to be ignited before Shabbos began and because of Jewish law, they could not be extinguished by man before Hawdoleh. This clearly means that they burnt during the evening and during ...
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2 votes

Source for Memorial Lights in Synagogue

Rav Shlomo Aviner at kipa.co.il rejects a connection between the memorial lights in shul and the נר של מתים mentioned in ברכות נג א and the נר יהא דלוק במקומו mentioned by רבי יהודה הנשיא in כתובות ...
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2 votes

Looking for the source of a saying on "redemption being like a candle in the daylight"

I think it's two Gemaras put together. One is in Shabbos 63a. It says תניא אמרו לו לרבי אליעזר וכי מאחר דתכשיטין הן לו מפני מה הן בטלין לימות המשיח אמר להן לפי שאינן צריכין שנאמר לא ישא גוי אל גוי ...
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  • 39.9k
2 votes

Candles in bedroom during Tisha B'Av

does one also light such a candle for Tisha B'Av A cursory check of classic Halacha books shows that none of them mention it. Au contraire, what is mentioned - reagrding light - is that on Tisha B'...
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2 votes

Can one disconnect an emergency lamp from power on shabbat?

Most agree that the emergency torch is a keli shemelachto le'issur (a utensil with a prohibited use). Such a utensil can be moved for its own use or to liberate the space it occupies. (see here and ...
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1 vote

Other sources of light to bless Shabbat over

Yes you can light shabbat "candles" using battery powered flashlights. Some rule you can even do so using electric lights (although others disagree). Here is one source Hacham Ben Sion, in his ...
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  • 43.4k
1 vote

Can one have a glass candelabra with seven branches?

As Zvi pointed out in the comments, glass is not kosher at all in the Beis Hamikdash. The gemara in Menachos 28b says that any metal is kosher, but not earthenware. Various commentaries say that bone ...
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  • 2,168
1 vote

Using oil lamps on Shabbas in old times

The answer and the example pictured answers to be question perfectly. A’shabbos lamp’ of this kind was prevalent in Jewish households across various cultures for many ages all the way up to the ...
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1 vote

Using oil lamps on Shabbas in old times

They had lamps that could provide light for many hours (not just the meal). Whether they filled them up each week to get extended light or just added enough oil for Friday dinner, I don't know. Here ...
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1 vote

Can one use a laser pointer instead of a "yad" while reading the Torah in public on weekdays?

Although it is unlikely given the power of most commonly available lasers, it is possible to damage the klaf using a laser if you had a high powered laser. Some may not like the idea of using a laser ...
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  • 9,153

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